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asp.net building controls
group:How to add postback function in Custom Server Controls
asp.net building controls:
textboxes, button link and so on. How can I get the postback respons on the button link: The functions: lblButtonLink_Command and lblButtonLink_Click will not be executed Please help Ton
ton,
what do you want to do with the caputred event ? If all you need to do is capture it and take action in your control itself then you can easily do this : 1.In createchildcontrols as you add your control that posts back, a button control for example : Dim button1 As New Button() button1.Text = "Submit" Controls.Add(button1) 'Notice the event handler defined below AddHandler button1.Click, AddressOf Me.ButtonClicked now define the buttonclicked sub in your control and take action there, everytime the button is clicked this will fire : Private Sub ButtonClicked(sender As [Object], e As EventArgs) 'What to do when button is clicked End Sub Should work for you, however I havent tested, but theorically this is all you need if this is your requirement. This is useful if you need to take action without exposing the event to the container page, giving the consumers of your control no control, as this event is not exposed to them. for a complete example that digs deeper into this you might want to look at the following link : http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconcompositecontrolsample.asp Instead if you need to expose this event to the page where your control sits, and exposed to the end users of your control then you will need to bubble it up . Here is a very nice example of how this can be done for composite controls on MSDN. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconeventbubblingcontrolsample.asp [quoted text, click to view] "ton" <vrs@home.nl> wrote in message news:bvav9a$pjr$1@news4.tilbu1.nb.home.nl... > In the procedure CreateChildControls I add several controls like check and > textboxes, button link and so on. How can I get the postback respons on the > button link: > The functions: > lblButtonLink_Command and lblButtonLink_Click will not be executed > > Please help > > Ton > > >
Thanks for you reply
I've used the code you've send me. It did not work. I made my control a lot simpeler and the result was the same. It looked as if the button click event were not handled by te procedure of the addresoff statement: The code looks now like: (And I'm sure that the createchildcontrols is called instaed of the the buttonclick procedure) Protected Overrides Sub CreateChildControls() If Me.Page.IsPostBack Then ' this is what runs after the button click ''Exit Sub '' (if I use Exit sub, no control is displayed) End If But = New Button But.Text = "Submit" But.ID = ClientID & "X" Controls.Add(But) AddHandler But.Click, AddressOf Me.ButtonClick ChildControlsCreated = True end Sub Private Sub ButtonClick(ByVal sender As Object, ByVal e As System.EventArgs) But = FindControl(ClientID & "X") But.Text = "xxxx" Controls.Add(But) End Sub I've dimensioned the button But as a private control, did not help íve done this with the withevents keyword, no difference and i've dimensioned them in the procedures createchildrecords and buttonclick no differences Ton "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef in bericht news:9DbSb.1271$HO2.677@news.edisontel.com... [quoted text, click to view] > ton, > what do you want to do with the caputred event ? > If all you need to do is capture it and take action in your control itself > then you can easily do this : > 1.In createchildcontrols as you add your control that posts back, a button > control for example : > Dim button1 As New Button() > button1.Text = "Submit" > Controls.Add(button1) > 'Notice the event handler defined below > AddHandler button1.Click, AddressOf Me.ButtonClicked > > now define the buttonclicked sub in your control and take action there, > everytime the button is clicked this will fire : > Private Sub ButtonClicked(sender As [Object], e As EventArgs) > 'What to do when button is clicked > End Sub > Should work for you, however I havent tested, but theorically this is all > you need if this is your requirement. This is useful if you need to take > action without exposing the event to the container page, giving the > consumers of your control no control, as this event is not exposed to them. > > for a complete example that digs deeper into this you might want to look at > the following link : > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconcompositecontrolsample.asp > > > Instead if you need to expose this event to the page where your control > sits, and exposed to the end users of your control then you will need to > bubble it up . > Here is a very nice example of how this can be done for composite controls > on MSDN. > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconeventbubblingcontrolsample.asp > > "ton" <vrs@home.nl> wrote in message > news:bvav9a$pjr$1@news4.tilbu1.nb.home.nl... > > In the procedure CreateChildControls I add several controls like check and > > textboxes, button link and so on. How can I get the postback respons on > the > > button link: > > The functions: > > lblButtonLink_Command and lblButtonLink_Click will not be executed > > > > Please help > > > > Ton > > > > > > > >
Should fire. It works for me. However i have noticed that you are trying to
add controls in your button click. This will not work for you because during postback those controls wont be recreated. so set a flag in viewstate as you add the control. Also I have noticed that you are trying to retrieve the same button, the one that fired the event in its event click and add it to the controls collection. This is not what what you need to do, but simply have the same code run after postback. Whatever code you have in your createchildcontrols method will run after postback, so let it all run as is and remove the ispostback check in there --If that code is not run your event will never fire, this is because the viewstate of the control is restored when the control is reloaded into its container. Private Sub ButtonClick(ByVal sender As Object, ByVal e As System.EventArgs) Dim MyButton As New Button() MyButton = CType(sender, Button) context.response.write("Click event for " & MyButton.id & "Fired") End Sub http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/webforms/ctrlauth/composition/Composition2.src&file=VB\Composition2.vb&font=3 This is another example : http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/webforms/ctrlauth/composition/Composition3.src&file=VB\Composition3.vb&font=3 [quoted text, click to view] "ton" <vrs@home.nl> wrote in message news:bvboj3$gbo$1@news1.tilbu1.nb.home.nl... > Thanks for you reply > > I've used the code you've send me. It did not work. I made my control a lot > simpeler and the result was the same. > It looked as if the button click event were not handled by te procedure of > the addresoff statement: > > The code looks now like: (And I'm sure that the createchildcontrols is > called instaed of the the buttonclick procedure) > > Protected Overrides Sub CreateChildControls() > If Me.Page.IsPostBack Then ' this is what runs after the button click > ''Exit Sub '' (if I use Exit sub, no control is displayed) > > End If > > But = New Button > > But.Text = "Submit" > > But.ID = ClientID & "X" > > Controls.Add(But) > > AddHandler But.Click, AddressOf Me.ButtonClick > > ChildControlsCreated = True > > end Sub > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As System.EventArgs) > > But = FindControl(ClientID & "X") > > But.Text = "xxxx" > > Controls.Add(But) > > End Sub > > I've dimensioned the button But as a private control, did not help > íve done this with the withevents keyword, no difference > and i've dimensioned them in the procedures createchildrecords and > buttonclick > > no differences > > Ton > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef in > bericht news:9DbSb.1271$HO2.677@news.edisontel.com... > > ton, > > what do you want to do with the caputred event ? > > If all you need to do is capture it and take action in your control itself > > then you can easily do this : > > 1.In createchildcontrols as you add your control that posts back, a button > > control for example : > > Dim button1 As New Button() > > button1.Text = "Submit" > > Controls.Add(button1) > > 'Notice the event handler defined below > > AddHandler button1.Click, AddressOf Me.ButtonClicked > > > > now define the buttonclicked sub in your control and take action there, > > everytime the button is clicked this will fire : > > Private Sub ButtonClicked(sender As [Object], e As EventArgs) > > 'What to do when button is clicked > > End Sub > > Should work for you, however I havent tested, but theorically this is all > > you need if this is your requirement. This is useful if you need to take > > action without exposing the event to the container page, giving the > > consumers of your control no control, as this event is not exposed to > them. > > > > for a complete example that digs deeper into this you might want to look > at > > the following link : > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconcompositecontrolsample.asp > > > > > > Instead if you need to expose this event to the page where your control > > sits, and exposed to the end users of your control then you will need to > > bubble it up . > > Here is a very nice example of how this can be done for composite controls > > on MSDN. > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconeventbubblingcontrolsample.asp > > > > "ton" <vrs@home.nl> wrote in message > > news:bvav9a$pjr$1@news4.tilbu1.nb.home.nl... > > > In the procedure CreateChildControls I add several controls like check > and > > > textboxes, button link and so on. How can I get the postback respons on > > the > > > button link: > > > The functions: > > > lblButtonLink_Command and lblButtonLink_Click will not be executed > > > > > > Please help > > > > > > Ton > > > > > > > > > > > > > > >
ton, Look at the post "No events are fired in child controls". Jeffery has
just pointed out how useful Implementing the InamingContainer interface really is, especially when you need events in child controls routed. This is why your events werent firing. Iimplement this interface, and do not try passing an explicit id to your control if you dont need it. At the moment i myself am having problems passing an explict id to child controls and i'm working on a workaround. Will postback when I do find a way. One good reason to want to pass an explicit id is when using a validator control and as you already know you need to pass your controls id to its "controlToValidate" property. If this is not your case then i dont see why it is important to pass an explicit ID "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote in message news:ZeeSb.1334$HO2.690@news.edisontel.com... [quoted text, click to view] > Should fire. It works for me. However i have noticed that you are trying to > add controls in your button click. This will not work for you because during > postback those controls wont be recreated. so set a flag in viewstate as you > add the control. > Also I have noticed that you are trying to retrieve the same button, the one > that fired the event in its event click and add it to the controls > collection. This is not what what you need to do, but simply have the same > code run after postback. Whatever code you have in your createchildcontrols > method will run after postback, so let it all run as is and remove the > ispostback check in there --If that code is not run your event will never > fire, this is because the viewstate of the control is restored when the > control is reloaded into its container. > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As System.EventArgs) > Dim MyButton As New Button() > MyButton = CType(sender, Button) > context.response.write("Click event for " & MyButton.id & "Fired") > End Sub > > http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/webforms/ctrlauth/composition/Composition2.src&file=VB\Composition2.vb&font=3 > > This is another example : > http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/webforms/ctrlauth/composition/Composition3.src&file=VB\Composition3.vb&font=3 > > > "ton" <vrs@home.nl> wrote in message > news:bvboj3$gbo$1@news1.tilbu1.nb.home.nl... > > Thanks for you reply > > > > I've used the code you've send me. It did not work. I made my control a > lot > > simpeler and the result was the same. > > It looked as if the button click event were not handled by te procedure of > > the addresoff statement: > > > > The code looks now like: (And I'm sure that the createchildcontrols is > > called instaed of the the buttonclick procedure) > > > > Protected Overrides Sub CreateChildControls() > > If Me.Page.IsPostBack Then ' this is what runs after the button click > > ''Exit Sub '' (if I use Exit sub, no control is displayed) > > > > End If > > > > But = New Button > > > > But.Text = "Submit" > > > > But.ID = ClientID & "X" > > > > Controls.Add(But) > > > > AddHandler But.Click, AddressOf Me.ButtonClick > > > > ChildControlsCreated = True > > > > end Sub > > > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As > System.EventArgs) > > > > But = FindControl(ClientID & "X") > > > > But.Text = "xxxx" > > > > Controls.Add(But) > > > > End Sub > > > > I've dimensioned the button But as a private control, did not help > > íve done this with the withevents keyword, no difference > > and i've dimensioned them in the procedures createchildrecords and > > buttonclick > > > > no differences > > > > Ton > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef in > > bericht news:9DbSb.1271$HO2.677@news.edisontel.com... > > > ton, > > > what do you want to do with the caputred event ? > > > If all you need to do is capture it and take action in your control > itself > > > then you can easily do this : > > > 1.In createchildcontrols as you add your control that posts back, a > button > > > control for example : > > > Dim button1 As New Button() > > > button1.Text = "Submit" > > > Controls.Add(button1) > > > 'Notice the event handler defined below > > > AddHandler button1.Click, AddressOf Me.ButtonClicked > > > > > > now define the buttonclicked sub in your control and take action there, > > > everytime the button is clicked this will fire : > > > Private Sub ButtonClicked(sender As [Object], e As EventArgs) > > > 'What to do when button is clicked > > > End Sub > > > Should work for you, however I havent tested, but theorically this is > all > > > you need if this is your requirement. This is useful if you need to take > > > action without exposing the event to the container page, giving the > > > consumers of your control no control, as this event is not exposed to > > them. > > > > > > for a complete example that digs deeper into this you might want to look > > at > > > the following link : > > > > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconcompositecontrolsample.asp > > > > > > > > > Instead if you need to expose this event to the page where your control > > > sits, and exposed to the end users of your control then you will need to > > > bubble it up . > > > Here is a very nice example of how this can be done for composite > controls > > > on MSDN. > > > > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconeventbubblingcontrolsample.asp > > > > > > "ton" <vrs@home.nl> wrote in message > > > news:bvav9a$pjr$1@news4.tilbu1.nb.home.nl... > > > > In the procedure CreateChildControls I add several controls like check > > and > > > > textboxes, button link and so on. How can I get the postback respons > on > > > the > > > > button link: > > > > The functions: > > > > lblButtonLink_Command and lblButtonLink_Click will not be executed > > > > > > > > Please help > > > > > > > > Ton > > > > > > > > > > > > > > > > > > > > > > > >
oops, no workaround. That InamingContainer Interface had me a little
confused ;P Since this interface already makes control ids unique you just need to pass your id as is like button1.id = "button1" textbox1.id = "textbox1" and so forth. When trying to reference textbox1 for example just simply use its id "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote in message news:cmpSb.1494$HO2.558@news.edisontel.com... [quoted text, click to view] > ton, Look at the post "No events are fired in child controls". Jeffery has
> just pointed out how useful Implementing the InamingContainer interface > really is, especially when you need events in child controls routed. This is > why your events werent firing. > > Iimplement this interface, and do not try passing an explicit id to your > control if you dont need it. > > At the moment i myself am having problems passing an explict id to child > controls and i'm working on a workaround. Will postback when I do find a > way. One good reason to want to pass an explicit id is when using a > validator control and as you already know you need to pass your controls id > to its "controlToValidate" property. > > If this is not your case then i dont see why it is important to pass an > explicit ID > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote in > message news:ZeeSb.1334$HO2.690@news.edisontel.com... > > Should fire. It works for me. However i have noticed that you are trying > to > > add controls in your button click. This will not work for you because > during > > postback those controls wont be recreated. so set a flag in viewstate as > you > > add the control. > > Also I have noticed that you are trying to retrieve the same button, the > one > > that fired the event in its event click and add it to the controls > > collection. This is not what what you need to do, but simply have the same > > code run after postback. Whatever code you have in your > createchildcontrols > > method will run after postback, so let it all run as is and remove the > > ispostback check in there --If that code is not run your event will never > > fire, this is because the viewstate of the control is restored when the > > control is reloaded into its container. > > > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As > System.EventArgs) > > Dim MyButton As New Button() > > MyButton = CType(sender, Button) > > context.response.write("Click event for " & MyButton.id & "Fired") > > End Sub > > > > > http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/webforms/ctrlauth/composition/Composition2.src&file=VB\Composition2.vb&font=3 > > > > This is another example : > > > http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/webforms/ctrlauth/composition/Composition3.src&file=VB\Composition3.vb&font=3 > > > > > > "ton" <vrs@home.nl> wrote in message > > news:bvboj3$gbo$1@news1.tilbu1.nb.home.nl... > > > Thanks for you reply > > > > > > I've used the code you've send me. It did not work. I made my control a > > lot > > > simpeler and the result was the same. > > > It looked as if the button click event were not handled by te procedure > of > > > the addresoff statement: > > > > > > The code looks now like: (And I'm sure that the createchildcontrols is > > > called instaed of the the buttonclick procedure) > > > > > > Protected Overrides Sub CreateChildControls() > > > If Me.Page.IsPostBack Then ' this is what runs after the button click > > > ''Exit Sub '' (if I use Exit sub, no control is displayed) > > > > > > End If > > > > > > But = New Button > > > > > > But.Text = "Submit" > > > > > > But.ID = ClientID & "X" > > > > > > Controls.Add(But) > > > > > > AddHandler But.Click, AddressOf Me.ButtonClick > > > > > > ChildControlsCreated = True > > > > > > end Sub > > > > > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As > > System.EventArgs) > > > > > > But = FindControl(ClientID & "X") > > > > > > But.Text = "xxxx" > > > > > > Controls.Add(But) > > > > > > End Sub > > > > > > I've dimensioned the button But as a private control, did not help > > > íve done this with the withevents keyword, no difference > > > and i've dimensioned them in the procedures createchildrecords and > > > buttonclick > > > > > > no differences > > > > > > Ton > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef > in > > > bericht news:9DbSb.1271$HO2.677@news.edisontel.com... > > > > ton, > > > > what do you want to do with the caputred event ? > > > > If all you need to do is capture it and take action in your control > > itself > > > > then you can easily do this : > > > > 1.In createchildcontrols as you add your control that posts back, a > > button > > > > control for example : > > > > Dim button1 As New Button() > > > > button1.Text = "Submit" > > > > Controls.Add(button1) > > > > 'Notice the event handler defined below > > > > AddHandler button1.Click, AddressOf Me.ButtonClicked > > > > > > > > now define the buttonclicked sub in your control and take action > there, > > > > everytime the button is clicked this will fire : > > > > Private Sub ButtonClicked(sender As [Object], e As EventArgs) > > > > 'What to do when button is clicked > > > > End Sub > > > > Should work for you, however I havent tested, but theorically this is > > all > > > > you need if this is your requirement. This is useful if you need to > take > > > > action without exposing the event to the container page, giving the > > > > consumers of your control no control, as this event is not exposed to > > > them. > > > > > > > > for a complete example that digs deeper into this you might want to > look > > > at > > > > the following link : > > > > > > > > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconcompositecontrolsample.asp > > > > > > > > > > > > Instead if you need to expose this event to the page where your > control > > > > sits, and exposed to the end users of your control then you will need > to > > > > bubble it up . > > > > Here is a very nice example of how this can be done for composite > > controls > > > > on MSDN. > > > > > > > > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconeventbubblingcontrolsample.asp > > > > > > > > "ton" <vrs@home.nl> wrote in message > > > > news:bvav9a$pjr$1@news4.tilbu1.nb.home.nl... > > > > > In the procedure CreateChildControls I add several controls like > check > > > and > > > > > textboxes, button link and so on. How can I get the postback respons > > on > > > > the > > > > > button link: > > > > > The functions: > > > > > lblButtonLink_Command and lblButtonLink_Click will not be executed > > > > >
thank you
the event is fired now but what I had in my does not occur: What I do is the following: - I show a record contains of 10 fields. The properties are: Tablename, RecordID, ShowFields (just a list of the fields to show) now pressing a button should replace the existing recordcard by another record card. For example a record contains a Contact. One of the field is the (database)-link to the Customer. To click on that buttonlink, should replace the form with for example 10 fields of the customer. You can say it is a zoom function to the toplevel of the database. For me this is inportant because it let me navigate in the database. Another example: when I want to modify the link I want to replace the control with a search screen to show a list of customers, where the user can select one. Or to add a complete knew one. The question is: "Is this possible". I do not want the webdesigner to add several controls on the form or to add several forms to the project to handle these evenst. Ton "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef in bericht news:PZpSb.1500$HO2.700@news.edisontel.com... [quoted text, click to view] > oops, no workaround. That InamingContainer Interface had me a little
> confused ;P > Since this interface already makes control ids unique you just need to pass > your id as is like > > button1.id = "button1" > textbox1.id = "textbox1" > and so forth. > When trying to reference textbox1 for example just simply use its id > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote in > message news:cmpSb.1494$HO2.558@news.edisontel.com... > > ton, Look at the post "No events are fired in child controls". Jeffery has > > just pointed out how useful Implementing the InamingContainer interface > > really is, especially when you need events in child controls routed. This > is > > why your events werent firing. > > > > Iimplement this interface, and do not try passing an explicit id to your > > control if you dont need it. > > > > At the moment i myself am having problems passing an explict id to child > > controls and i'm working on a workaround. Will postback when I do find a > > way. One good reason to want to pass an explicit id is when using a > > validator control and as you already know you need to pass your controls > id > > to its "controlToValidate" property. > > > > If this is not your case then i dont see why it is important to pass an > > explicit ID > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote in > > message news:ZeeSb.1334$HO2.690@news.edisontel.com... > > > Should fire. It works for me. However i have noticed that you are trying > > to > > > add controls in your button click. This will not work for you because > > during > > > postback those controls wont be recreated. so set a flag in viewstate as > > you > > > add the control. > > > Also I have noticed that you are trying to retrieve the same button, the > > one > > > that fired the event in its event click and add it to the controls > > > collection. This is not what what you need to do, but simply have the > same > > > code run after postback. Whatever code you have in your > > createchildcontrols > > > method will run after postback, so let it all run as is and remove the > > > ispostback check in there --If that code is not run your event will > never > > > fire, this is because the viewstate of the control is restored when the > > > control is reloaded into its container. > > > > > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As > > System.EventArgs) > > > Dim MyButton As New Button() > > > MyButton = CType(sender, Button) > > > context.response.write("Click event for " & MyButton.id & "Fired") > > > End Sub > > > > > > > > > http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/webforms/ctrlauth/composition/Composition2.src&file=VB\Composition2.vb&font=3 > > > > > > This is another example : > > > > > > http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/webforms/ctrlauth/composition/Composition3.src&file=VB\Composition3.vb&font=3 > > > > > > > > > "ton" <vrs@home.nl> wrote in message > > > news:bvboj3$gbo$1@news1.tilbu1.nb.home.nl... > > > > Thanks for you reply > > > > > > > > I've used the code you've send me. It did not work. I made my control > a > > > lot > > > > simpeler and the result was the same. > > > > It looked as if the button click event were not handled by te > procedure > > of > > > > the addresoff statement: > > > > > > > > The code looks now like: (And I'm sure that the createchildcontrols is > > > > called instaed of the the buttonclick procedure) > > > > > > > > Protected Overrides Sub CreateChildControls() > > > > If Me.Page.IsPostBack Then ' this is what runs after the button click > > > > ''Exit Sub '' (if I use Exit sub, no control is displayed) > > > > > > > > End If > > > > > > > > But = New Button > > > > > > > > But.Text = "Submit" > > > > > > > > But.ID = ClientID & "X" > > > > > > > > Controls.Add(But) > > > > > > > > AddHandler But.Click, AddressOf Me.ButtonClick > > > > > > > > ChildControlsCreated = True > > > > > > > > end Sub > > > > > > > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As > > > System.EventArgs) > > > > > > > > But = FindControl(ClientID & "X") > > > > > > > > But.Text = "xxxx" > > > > > > > > Controls.Add(But) > > > > > > > > End Sub > > > > > > > > I've dimensioned the button But as a private control, did not help > > > > íve done this with the withevents keyword, no difference > > > > and i've dimensioned them in the procedures createchildrecords and > > > > buttonclick > > > > > > > > no differences > > > > > > > > Ton > > > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef > > in > > > > bericht news:9DbSb.1271$HO2.677@news.edisontel.com... > > > > > ton, > > > > > what do you want to do with the caputred event ? > > > > > If all you need to do is capture it and take action in your control > > > itself > > > > > then you can easily do this : > > > > > 1.In createchildcontrols as you add your control that posts back, a > > > button > > > > > control for example : > > > > > Dim button1 As New Button() > > > > > button1.Text = "Submit" > > > > > Controls.Add(button1) > > > > > 'Notice the event handler defined below > > > > > AddHandler button1.Click, AddressOf Me.ButtonClicked > > > > > > > > > > now define the buttonclicked sub in your control and take action > > there, > > > > > everytime the button is clicked this will fire : > > > > > Private Sub ButtonClicked(sender As [Object], e As EventArgs) > > > > > 'What to do when button is clicked > > > > > End Sub
ton, Can you explain that again. Its not very clear what you want to do ;P
[quoted text, click to view] "ton" <vrs@home.nl> wrote in message
news:bvl8va$khs$1@news3.tilbu1.nb.home.nl... > thank you > the event is fired now but what I had in my does not occur: > What I do is the following: > - I show a record contains of 10 fields. The properties are: > Tablename, RecordID, ShowFields (just a list of the fields to show) > now pressing a button should replace the existing recordcard by another > record card. For example a record contains a Contact. One of the field is > the (database)-link to the Customer. To click on that buttonlink, should > replace the form with for example 10 fields of the customer. You can say it > is a zoom function to the toplevel of the database. > For me this is inportant because it let me navigate in the database. > Another example: > when I want to modify the link I want to replace the control with a search > screen to show a list of customers, where the user can select one. Or to add > a complete knew one. > > The question is: "Is this possible". I do not want the webdesigner to add > several controls on the form or to add several forms to the project to > handle these evenst. > > Ton > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef in > bericht news:PZpSb.1500$HO2.700@news.edisontel.com... > > oops, no workaround. That InamingContainer Interface had me a little > > confused ;P > > Since this interface already makes control ids unique you just need to > pass > > your id as is like > > > > button1.id = "button1" > > textbox1.id = "textbox1" > > and so forth. > > When trying to reference textbox1 for example just simply use its id > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote in > > message news:cmpSb.1494$HO2.558@news.edisontel.com... > > > ton, Look at the post "No events are fired in child controls". Jeffery > has > > > just pointed out how useful Implementing the InamingContainer interface > > > really is, especially when you need events in child controls routed. > This > > is > > > why your events werent firing. > > > > > > Iimplement this interface, and do not try passing an explicit id to your > > > control if you dont need it. > > > > > > At the moment i myself am having problems passing an explict id to child > > > controls and i'm working on a workaround. Will postback when I do find a > > > way. One good reason to want to pass an explicit id is when using a > > > validator control and as you already know you need to pass your controls > > id > > > to its "controlToValidate" property. > > > > > > If this is not your case then i dont see why it is important to pass an > > > explicit ID > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote in > > > message news:ZeeSb.1334$HO2.690@news.edisontel.com... > > > > Should fire. It works for me. However i have noticed that you are > trying > > > to > > > > add controls in your button click. This will not work for you because > > > during > > > > postback those controls wont be recreated. so set a flag in viewstate > as > > > you > > > > add the control. > > > > Also I have noticed that you are trying to retrieve the same button, > the > > > one > > > > that fired the event in its event click and add it to the controls > > > > collection. This is not what what you need to do, but simply have the > > same > > > > code run after postback. Whatever code you have in your > > > createchildcontrols > > > > method will run after postback, so let it all run as is and remove the > > > > ispostback check in there --If that code is not run your event will > > never > > > > fire, this is because the viewstate of the control is restored when > the > > > > control is reloaded into its container. > > > > > > > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As > > > System.EventArgs) > > > > Dim MyButton As New Button() > > > > MyButton = CType(sender, Button) > > > > context.response.write("Click event for " & MyButton.id & "Fired") > > > > End Sub > > > > > > > > > > > > > > http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/webforms/ctrlauth/composition/Composition2.src&file=VB\Composition2.vb&font=3 > > > > > > > > This is another example : > > > > > > > > > > http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/aspplus/samples/webforms/ctrlauth/composition/Composition3.src&file=VB\Composition3.vb&font=3 > > > > > > > > > > > > "ton" <vrs@home.nl> wrote in message > > > > news:bvboj3$gbo$1@news1.tilbu1.nb.home.nl... > > > > > Thanks for you reply > > > > > > > > > > I've used the code you've send me. It did not work. I made my > control > > a > > > > lot > > > > > simpeler and the result was the same. > > > > > It looked as if the button click event were not handled by te > > procedure > > > of > > > > > the addresoff statement: > > > > > > > > > > The code looks now like: (And I'm sure that the createchildcontrols > is > > > > > called instaed of the the buttonclick procedure) > > > > > > > > > > Protected Overrides Sub CreateChildControls() > > > > > If Me.Page.IsPostBack Then ' this is what runs after the button > click > > > > > ''Exit Sub '' (if I use Exit sub, no control is displayed) > > > > > > > > > > End If > > > > > > > > > > But = New Button > > > > > > > > > > But.Text = "Submit" > > > > > > > > > > But.ID = ClientID & "X" > > > > > > > > > > Controls.Add(But) > > > > > > > > > > AddHandler But.Click, AddressOf Me.ButtonClick > > > > > > > > > > ChildControlsCreated = True > > > > > > > > > > end Sub > > > > > > > > > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As > > > > System.EventArgs) > > > > > > > > > > But = FindControl(ClientID & "X") > > > > > > > > > > But.Text = "xxxx" > > > > > > > > > > Controls.Add(But) > > > > > > > > > > End Sub > > > > > > > > > > I've dimensioned the button But as a private control, did not help > > > > > íve done this with the withevents keyword, no difference > > > > > and i've dimensioned them in the procedures createchildrecords and > > > > > buttonclick > > > > > > > > > > no differences > > > > > > > > > > Ton > > > > > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> > schreef > > > in > > > > > bericht news:9DbSb.1271$HO2.677@news.edisontel.com... > > > > > > ton, > > > > > > what do you want to do with the caputred event ? > > > > > > If all you need to do is capture it and take action in your > control > > > > itself > > > > > > then you can easily do this : > > > > > > 1.In createchildcontrols as you add your control that posts back, > a > > > > button > > > > > > control for example : > > > > > > Dim button1 As New Button() > > > > > > button1.Text = "Submit"
suppose you want to plan an activity. You get a card wich contains several
field like date, begintime, end time, description, customer, type of activity and so on type of activity is a dropdonlist description a textbox and the customer fields points to a foreignkey with the customer-table (if it is filled in I just show the customer name) off cause i cannot use a drop down list because there will be hunderds or thoussends of customers in the database so when it is empty i can press a button to select one from a list (get e search screen and then look up) or i can add a new customer, in both situations I want to have a different from as the replacement of my original activity: - pick from a list will show me several search fields from the table customer inclusive a Search button - the add new customer will give me a recordcard with the important fields to define a new customer when the customer is add, or when the customer is selected from the list I replace this card by the original content where the customer field shows the name of the customer So instead of multiple screens i just use the same screens to collect the information to plan this activity i hope you can help Ton "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef in bericht news:HOrTb.2542$HO2.1155@news.edisontel.com... [quoted text, click to view] > ton, Can you explain that again. Its not very clear what you want to do http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/a;P > > > "ton" <vrs@home.nl> wrote in message > news:bvl8va$khs$1@news3.tilbu1.nb.home.nl... > > thank you > > the event is fired now but what I had in my does not occur: > > What I do is the following: > > - I show a record contains of 10 fields. The properties are: > > Tablename, RecordID, ShowFields (just a list of the fields to show) > > now pressing a button should replace the existing recordcard by another > > record card. For example a record contains a Contact. One of the field is > > the (database)-link to the Customer. To click on that buttonlink, should > > replace the form with for example 10 fields of the customer. You can say > it > > is a zoom function to the toplevel of the database. > > For me this is inportant because it let me navigate in the database. > > Another example: > > when I want to modify the link I want to replace the control with a search > > screen to show a list of customers, where the user can select one. Or to > add > > a complete knew one. > > > > The question is: "Is this possible". I do not want the webdesigner to add > > several controls on the form or to add several forms to the project to > > handle these evenst. > > > > Ton > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef in > > bericht news:PZpSb.1500$HO2.700@news.edisontel.com... > > > oops, no workaround. That InamingContainer Interface had me a little > > > confused ;P > > > Since this interface already makes control ids unique you just need to > > pass > > > your id as is like > > > > > > button1.id = "button1" > > > textbox1.id = "textbox1" > > > and so forth. > > > When trying to reference textbox1 for example just simply use its id > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote in > > > message news:cmpSb.1494$HO2.558@news.edisontel.com... > > > > ton, Look at the post "No events are fired in child controls". Jeffery > > has > > > > just pointed out how useful Implementing the InamingContainer > interface > > > > really is, especially when you need events in child controls routed. > > This > > > is > > > > why your events werent firing. > > > > > > > > Iimplement this interface, and do not try passing an explicit id to > your > > > > control if you dont need it. > > > > > > > > At the moment i myself am having problems passing an explict id to > child > > > > controls and i'm working on a workaround. Will postback when I do find > a > > > > way. One good reason to want to pass an explicit id is when using a > > > > validator control and as you already know you need to pass your > controls > > > id > > > > to its "controlToValidate" property. > > > > > > > > If this is not your case then i dont see why it is important to pass > an > > > > explicit ID > > > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote > in > > > > message news:ZeeSb.1334$HO2.690@news.edisontel.com... > > > > > Should fire. It works for me. However i have noticed that you are > > trying > > > > to > > > > > add controls in your button click. This will not work for you > because > > > > during > > > > > postback those controls wont be recreated. so set a flag in > viewstate > > as > > > > you > > > > > add the control. > > > > > Also I have noticed that you are trying to retrieve the same button, > > the > > > > one > > > > > that fired the event in its event click and add it to the controls > > > > > collection. This is not what what you need to do, but simply have > the > > > same > > > > > code run after postback. Whatever code you have in your > > > > createchildcontrols > > > > > method will run after postback, so let it all run as is and remove > the > > > > > ispostback check in there --If that code is not run your event will > > > never > > > > > fire, this is because the viewstate of the control is restored when > > the > > > > > control is reloaded into its container. > > > > > > > > > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As > > > > System.EventArgs) > > > > > Dim MyButton As New Button() > > > > > MyButton = CType(sender, Button) > > > > > context.response.write("Click event for " & MyButton.id & "Fired") > > > > > End Sub > > > > > > > > > > > > > > > > > > > > spplus/samples/webforms/ctrlauth/composition/Composition2.src&file=VB\Compos ition2.vb&font=3 [quoted text, click to view] > > > > > http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/a> > > > > This is another example : > > > > > > > > > > > > > > > spplus/samples/webforms/ctrlauth/composition/Composition3.src&file=VB\Compos ition3.vb&font=3 [quoted text, click to view] > > > > >
> > > > > > > > > > "ton" <vrs@home.nl> wrote in message > > > > > news:bvboj3$gbo$1@news1.tilbu1.nb.home.nl... > > > > > > Thanks for you reply > > > > > > > > > > > > I've used the code you've send me. It did not work. I made my > > control > > > a > > > > > lot > > > > > > simpeler and the result was the same. > > > > > > It looked as if the button click event were not handled by te > > > procedure > > > > of > > > > > > the addresoff statement: > > > > > > > > > > > > The code looks now like: (And I'm sure that the > createchildcontrols > > is > > > > > > called instaed of the the buttonclick procedure) > > > > > > > > > > > > Protected Overrides Sub CreateChildControls()
My experience to you:
1. You control must implement INamingContainer to create its own namespace for event routing 2. you override CreateChildControl and construct them according to your rules. It might be tricky you must remember that Even though ASP.NET supports events it is still disconnected architecture therefore once a server sends you a page it completely forgets about you therefore, when you click on a button (or generate other event) what must happen is: 1 - data sent to the server 2 - server constructs control tree (it MUST construct the same control tree as you had when you outputted the controls /previous state) 3 - It checks which control supposed to receive an event (__EVENTTARGET post variable contains the control name) 4 - An event is raised on behalf of control 5 - You capture the event 3. Clear the control list (Controls.Clear()) 4. Load Conditions (or Cache) of your previous request (ViewState could be used to store them) 5. Build Controls based on previous conditions (or cache) - by the time you get out of the CreateChildControls() your ChildControlsCreated flag will be set to true by the framework 6. Event delegate will get executed 7. Make sure your event handler alters the Control Condition and calls (this.ChildControlsCreated = false). what that will do is place an indication flag that controls have not been created, that will case the framework to re-run CreateChildControls; 8. When CreateChildControls re-runs it Clears it's previous control list, loads up Build Conditions and Generates the controls. Except the build conditions are based now on your different Build conditions. It is like you will be running the page twice - once to build an old state, figure out what event to raise and raise that event. Once raised you will re-run everything to determine second state and alter your presentation. If that is not enough think about this. When an event is mapped to the hierarchy, the hierarchy must be in the same exact order as it has been before, otherwise an event will get mapped to the wrong control. This is where you get CorruptedViewState error messages. Consider this: User John (ctl1) User Jane (ctl2) User Jim (ctl3) Each of the users is a button You click on Jane, however, between the time you got the page and the time you clicked user Jane was deleted, a server will construct a list User John (ctl1) User Jim (ctl2) Check which control you were trying to route an event to - that would be ctl2; execute OnClick event delegate for User Jim. - - Hope this helps In summary - if you can avoid doing it do so - I had a catalog that was working the exact same way; after 3 months of production I changed it to redirect itself to its own page with Get Parameters instead of events. I did it because every load of a page resulted in 2X work for the server (previous state + current state). it also removed a lot of complexity. I also know of a few that created every! control on the page they might need and then made them visible or hid them. Personally I don't like that style. - Arthur [quoted text, click to view] "ton" <vrs@home.nl> wrote in message news:bvav9a$pjr$1@news4.tilbu1.nb.home.nl... > In the procedure CreateChildControls I add several controls like check and > textboxes, button link and so on. How can I get the postback respons on the > button link: > The functions: > lblButtonLink_Command and lblButtonLink_Click will not be executed > > Please help > > Ton > > >
still not clear to me. Instead of defining a scenario can you simplify it
and explain it in terms of custom control building what is not working for you. Is your requirement to build a databound custom server control ? Are you looking into building a custom control that has similar functionality to the datagrid, datalist, repeater and so on --what have you been able to implement so far. Which parts are working and where are you stuck. [quoted text, click to view] "ton" <vrs@home.nl> wrote in message
news:bvlkqi$v3s$1@news2.tilbu1.nb.home.nl... > suppose you want to plan an activity. You get a card wich contains several > field like > date, begintime, end time, description, customer, type of activity and so > on > type of activity is a dropdonlist > description a textbox > and the customer fields points to a foreignkey with the customer-table (if > it is filled in I just show the customer name) > off cause i cannot use a drop down list because there will be hunderds or > thoussends of customers in the database > so when it is empty i can press a button to select one from a list (get e > search screen and then look up) > or i can add a new customer, in both situations I want to have a different > from as the replacement of my original activity: > - pick from a list will show me several search fields from the table > customer inclusive a Search button > - the add new customer will give me a recordcard with the important fields > to define a new customer > when the customer is add, or when the customer is selected from the list I > replace this card by the original content where the customer field shows the > name of the customer > > So instead of multiple screens i just use the same screens to collect the > information to plan this activity > > i hope you can help > > > Ton > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef in > bericht news:HOrTb.2542$HO2.1155@news.edisontel.com... > > ton, Can you explain that again. Its not very clear what you want to do > ;P > > > > > > "ton" <vrs@home.nl> wrote in message > > news:bvl8va$khs$1@news3.tilbu1.nb.home.nl... > > > thank you > > > the event is fired now but what I had in my does not occur: > > > What I do is the following: > > > - I show a record contains of 10 fields. The properties are: > > > Tablename, RecordID, ShowFields (just a list of the fields to show) > > > now pressing a button should replace the existing recordcard by another > > > record card. For example a record contains a Contact. One of the field > is > > > the (database)-link to the Customer. To click on that buttonlink, should > > > replace the form with for example 10 fields of the customer. You can say > > it > > > is a zoom function to the toplevel of the database. > > > For me this is inportant because it let me navigate in the database. > > > Another example: > > > when I want to modify the link I want to replace the control with a > search > > > screen to show a list of customers, where the user can select one. Or to > > add > > > a complete knew one. > > > > > > The question is: "Is this possible". I do not want the webdesigner to > add > > > several controls on the form or to add several forms to the project to > > > handle these evenst. > > > > > > Ton > > > > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef > in > > > bericht news:PZpSb.1500$HO2.700@news.edisontel.com... > > > > oops, no workaround. That InamingContainer Interface had me a little > > > > confused ;P > > > > Since this interface already makes control ids unique you just need > to > > > pass > > > > your id as is like > > > > > > > > button1.id = "button1" > > > > textbox1.id = "textbox1" > > > > and so forth. > > > > When trying to reference textbox1 for example just simply use its id > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote > in > > > > message news:cmpSb.1494$HO2.558@news.edisontel.com... > > > > > ton, Look at the post "No events are fired in child controls". > Jeffery > > > has > > > > > just pointed out how useful Implementing the InamingContainer > > interface > > > > > really is, especially when you need events in child controls routed. > > > This > > > > is > > > > > why your events werent firing. > > > > > > > > > > Iimplement this interface, and do not try passing an explicit id to > > your > > > > > control if you dont need it. > > > > > > > > > > At the moment i myself am having problems passing an explict id to > > child > > > > > controls and i'm working on a workaround. Will postback when I do > find > > a > > > > > way. One good reason to want to pass an explicit id is when using a > > > > > validator control and as you already know you need to pass your > > controls > > > > id > > > > > to its "controlToValidate" property. > > > > > > > > > > If this is not your case then i dont see why it is important to pass > > an > > > > > explicit ID > > > > > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote > > in > > > > > message news:ZeeSb.1334$HO2.690@news.edisontel.com... > > > > > > Should fire. It works for me. However i have noticed that you are > > > trying > > > > > to > > > > > > add controls in your button click. This will not work for you > > because > > > > > during > > > > > > postback those controls wont be recreated. so set a flag in > > viewstate > > > as > > > > > you > > > > > > add the control. > > > > > > Also I have noticed that you are trying to retrieve the same > button, > > > the > > > > > one > > > > > > that fired the event in its event click and add it to the controls > > > > > > collection. This is not what what you need to do, but simply have > > the > > > > same > > > > > > code run after postback. Whatever code you have in your > > > > > createchildcontrols > > > > > > method will run after postback, so let it all run as is and remove > > the > > > > > > ispostback check in there --If that code is not run your event > will > > > > never > > > > > > fire, this is because the viewstate of the control is restored > when > > > the > > > > > > control is reloaded into its container. > > > > > > > > > > > > Private Sub ButtonClick(ByVal sender As Object, ByVal e As > > > > > System.EventArgs) > > > > > > Dim MyButton As New Button() > > > > > > MyButton = CType(sender, Button) > > > > > > context.response.write("Click event for " & MyButton.id & "Fired") > > > > > > End Sub > > > > > > > > > > > > > > > > > > > > > > > > > > > http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/a > spplus/samples/webforms/ctrlauth/composition/Composition2.src&file=VB\Compos > ition2.vb&font=3 > > > > > > > > > > > > This is another example : > > > > > > > > > > > > > > > > > > > > >
what i want is that when the event of the button fires I would like to show
a complete other card, not the 10 fields i've showen earlier but because of the click i would see details depending on the click this could be 5 fields from another record and another table. So existing added controls away, new controls inplace ton "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef in bericht news:27tTb.2569$HO2.1990@news.edisontel.com... [quoted text, click to view] > still not clear to me. Instead of defining a scenario can you simplify it
> and explain it in terms of custom control building what is not working for > you. Is your requirement to build a databound custom server control ? Are > you looking into building a custom control that has similar functionality to > the datagrid, datalist, repeater and so on --what have you been able to > implement so far. Which parts are working and where are you stuck. > > "ton" <vrs@home.nl> wrote in message > news:bvlkqi$v3s$1@news2.tilbu1.nb.home.nl... > > suppose you want to plan an activity. You get a card wich contains several > > field like > > date, begintime, end time, description, customer, type of activity and so > > on > > type of activity is a dropdonlist > > description a textbox > > and the customer fields points to a foreignkey with the customer-table (if > > it is filled in I just show the customer name) > > off cause i cannot use a drop down list because there will be hunderds or > > thoussends of customers in the database > > so when it is empty i can press a button to select one from a list (get e > > search screen and then look up) > > or i can add a new customer, in both situations I want to have a different > > from as the replacement of my original activity: > > - pick from a list will show me several search fields from the table > > customer inclusive a Search button > > - the add new customer will give me a recordcard with the important fields > > to define a new customer > > when the customer is add, or when the customer is selected from the list I > > replace this card by the original content where the customer field shows > the > > name of the customer > > > > So instead of multiple screens i just use the same screens to collect the > > information to plan this activity > > > > i hope you can help > > > > > > Ton > > > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef in > > bericht news:HOrTb.2542$HO2.1155@news.edisontel.com... > > > ton, Can you explain that again. Its not very clear what you want to do > > ;P > > > > > > > > > "ton" <vrs@home.nl> wrote in message > > > news:bvl8va$khs$1@news3.tilbu1.nb.home.nl... > > > > thank you > > > > the event is fired now but what I had in my does not occur: > > > > What I do is the following: > > > > - I show a record contains of 10 fields. The properties are: > > > > Tablename, RecordID, ShowFields (just a list of the fields to show) > > > > now pressing a button should replace the existing recordcard by > another > > > > record card. For example a record contains a Contact. One of the field > > is > > > > the (database)-link to the Customer. To click on that buttonlink, > should > > > > replace the form with for example 10 fields of the customer. You can > say > > > it > > > > is a zoom function to the toplevel of the database. > > > > For me this is inportant because it let me navigate in the database. > > > > Another example: > > > > when I want to modify the link I want to replace the control with a > > search > > > > screen to show a list of customers, where the user can select one. Or > to > > > add > > > > a complete knew one. > > > > > > > > The question is: "Is this possible". I do not want the webdesigner to > > add > > > > several controls on the form or to add several forms to the project to > > > > handle these evenst. > > > > > > > > Ton > > > > > > > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> schreef > > in > > > > bericht news:PZpSb.1500$HO2.700@news.edisontel.com... > > > > > oops, no workaround. That InamingContainer Interface had me a little > > > > > confused ;P > > > > > Since this interface already makes control ids unique you just need > > to > > > > pass > > > > > your id as is like > > > > > > > > > > button1.id = "button1" > > > > > textbox1.id = "textbox1" > > > > > and so forth. > > > > > When trying to reference textbox1 for example just simply use its id > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote > > in > > > > > message news:cmpSb.1494$HO2.558@news.edisontel.com... > > > > > > ton, Look at the post "No events are fired in child controls". > > Jeffery > > > > has > > > > > > just pointed out how useful Implementing the InamingContainer > > > interface > > > > > > really is, especially when you need events in child controls > routed. > > > > This > > > > > is > > > > > > why your events werent firing. > > > > > > > > > > > > Iimplement this interface, and do not try passing an explicit id > to > > > your > > > > > > control if you dont need it. > > > > > > > > > > > > At the moment i myself am having problems passing an explict id to > > > child > > > > > > controls and i'm working on a workaround. Will postback when I do > > find > > > a > > > > > > way. One good reason to want to pass an explicit id is when using > a > > > > > > validator control and as you already know you need to pass your > > > controls > > > > > id > > > > > > to its "controlToValidate" property. > > > > > > > > > > > > If this is not your case then i dont see why it is important to > pass > > > an > > > > > > explicit ID > > > > > > > > > > > > "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> > wrote > > > in > > > > > > message news:ZeeSb.1334$HO2.690@news.edisontel.com... > > > > > > > Should fire. It works for me. However i have noticed that you > are > > > > trying > > > > > > to > > > > > > > add controls in your button click. This will not work for you > > > because > > > > > > during > > > > > > > postback those controls wont be recreated. so set a flag in > > > viewstate > > > > as > > > > > > you > > > > > > > add the control. > > > > > > > Also I have noticed that you are trying to retrieve the same > > button, > > > > the > > > > > > one > > > > > > > that fired the event in its event click and add it to the > controls > > > > > > > collection. This is not what what you need to do, but simply > have > > > the > > > > > same > > > > > > > code run after postback. Whatever code you have in your > > > > > > createchildcontrols > > > > > > > method will run after postback, so let it all run as is and > remove > > > the > > > > > > > ispostback check in there --If that code is not run your event > > will > > > > > never
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