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vb.net controls : Populating Combo during load of Control
Forgive me if this seems trivial, but any and all help is greatly
appreciated, and I will attempt to explain this as best I can. I have created a combo and added a certain number of properties to it. When I place that combo on a form, I set any number of those properties. What I would like to happen is during the load of the COMBO BOX, not the form, I would like to see what properties are set on the combo and populate the combo with data depending on what properties are set. Yes, I could do this on the load of the FORM, but then I would have to write code on each and every FORM_LOAD that I place the combo on. I know there is not an CONTROL_LOAD method, but is there an equivalent that I can use so that no matter how many forms I drop this combo on, the code is already with the combo, and all I have to do is set the properties? I sincerely hope this made sense. -- Thanks,
I don't think you can do what you're asking, because there isn't an event
inside of a control that fires when it is added to a parent container. You can use the controladded event in the parent form, but, you are no better off than form_load. You can inherit from the combobox and set the additional values when they are set. For example, lets say you want to add items to the combo box, but only if the back color is red. You can set the back color to red, and, in the property set definition you can provide the additional logic. I could be wrong, as often I am, but, others will help to point out any shortfalls in my thinking. HTH, Jared Public Class MyCombo Inherits ComboBox Sub New() MyBase.New() ' Add items to the combo box here. End Sub Protected Overrides Sub RefreshItem(ByVal index As Integer) MyBase.RefreshItem(index) End Sub Protected Overrides Sub SetItemsCore(ByVal items As System.Collections.IList) MyBase.SetItemsCore(items) End Sub Public Overrides Property BackColor() As Color Get Return MyBase.BackColor End Get Set(ByVal Value As Color) MyBase.BackColor = Value If Value.Equals(Color.Red) Then ' Set some additional values for the control. MsgBox("You choose red") Else ' Remove items here End If End Set End Property End Class [quoted text, click to view] "SQLScott" <SQLScott@discussions.microsoft.com> wrote in message news:8152D156-316F-497A-B367-FC5A0B03607F@microsoft.com... > Forgive me if this seems trivial, but any and all help is greatly > appreciated, and I will attempt to explain this as best I can. > > I have created a combo and added a certain number of properties to it. > When > I place that combo on a form, I set any number of those properties. > > What I would like to happen is during the load of the COMBO BOX, not the > form, I would like to see what properties are set on the combo and > populate > the combo with data depending on what properties are set. > > Yes, I could do this on the load of the FORM, but then I would have to > write > code on each and every FORM_LOAD that I place the combo on. > > I know there is not an CONTROL_LOAD method, but is there an equivalent > that > I can use so that no matter how many forms I drop this combo on, the code > is > already with the combo, and all I have to do is set the properties? > > I sincerely hope this made sense. > > -- > Thanks, > > Scott
Mick,
Can you elaborate for my benefit? How does this let you know only when a control has been loaded in a parent container only? Thanks, Jared "Mick Doherty" <EXCHANGE#WITH@AND.REMOVE.SQUAREBRACKETS.[mdaudi100#ntlworld.com]> wrote in message news:uAdgoTkrEHA.1036@TK2MSFTNGP10.phx.gbl... [quoted text, click to view] > You could use the OnParentChanged method. > > -- > Mick Doherty > http://dotnetrix.co.uk/nothing.html > > > "Jared" <ask_me_for_it@nospam.com> wrote in message > news:10mgfnujfud4860@corp.supernews.com... >> I don't think you can do what you're asking, because there isn't an event >> inside of a control that fires when it is added to a parent container. >> You can use the controladded event in the parent form, but, you are no >> better off than form_load. >> >> You can inherit from the combobox and set the additional values when they >> are set. >> For example, lets say you want to add items to the combo box, but only if >> the back color is red. You can set the back color to red, and, in the >> property set definition you can provide the additional logic. >> >> I could be wrong, as often I am, but, others will help to point out any >> shortfalls in my thinking. >> HTH, >> Jared >> >> Public Class MyCombo >> Inherits ComboBox >> >> Sub New() >> MyBase.New() >> ' Add items to the combo box here. >> End Sub >> >> Protected Overrides Sub RefreshItem(ByVal index As Integer) >> MyBase.RefreshItem(index) >> End Sub >> >> Protected Overrides Sub SetItemsCore(ByVal items As >> System.Collections.IList) >> MyBase.SetItemsCore(items) >> End Sub >> >> Public Overrides Property BackColor() As Color >> Get >> Return MyBase.BackColor >> End Get >> Set(ByVal Value As Color) >> MyBase.BackColor = Value >> If Value.Equals(Color.Red) Then >> ' Set some additional values for the control. >> MsgBox("You choose red") >> Else >> ' Remove items here >> End If >> End Set >> End Property >> End Class >> >> "SQLScott" <SQLScott@discussions.microsoft.com> wrote in message >> news:8152D156-316F-497A-B367-FC5A0B03607F@microsoft.com... >>> Forgive me if this seems trivial, but any and all help is greatly >>> appreciated, and I will attempt to explain this as best I can. >>> >>> I have created a combo and added a certain number of properties to it. >>> When >>> I place that combo on a form, I set any number of those properties. >>> >>> What I would like to happen is during the load of the COMBO BOX, not the >>> form, I would like to see what properties are set on the combo and >>> populate >>> the combo with data depending on what properties are set. >>> >>> Yes, I could do this on the load of the FORM, but then I would have to >>> write >>> code on each and every FORM_LOAD that I place the combo on. >>> >>> I know there is not an CONTROL_LOAD method, but is there an equivalent >>> that >>> I can use so that no matter how many forms I drop this combo on, the >>> code is >>> already with the combo, and all I have to do is set the properties? >>> >>> I sincerely hope this made sense. >>> >>> -- >>> Thanks, >>> >>> Scott >> >> > > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.742 / Virus Database: 495 - Release Date: 19/08/2004 >
Thanks for the explanation Mick.
Jared "Mick Doherty" <EXCHANGE#WITH@AND.REMOVE.SQUAREBRACKETS.[mdaudi100#ntlworld.com]> wrote in message news:eUEIznlrEHA.1712@tk2msftngp13.phx.gbl... [quoted text, click to view] > This was a response to your answer which stated: >>I don't think you can do what you're asking, because there isn't an event >>inside of a control that fires when it is added to a parent container. > > When you add a control to a container, that controls parent changes from > Nothing (or it's previous container) to the Control that contains it, and > it fires the ParentChanged event and the OnParentChanged method. > > \\\ > Protected Overrides Sub OnParentChanged(ByVal e As System.EventArgs) > MyBase.OnParentChanged(e) > If Me.Parent Is Nothing Then Return > If Me.DesignMode = False Then > MsgBox(Me.Parent.ToString) > End If > End Sub > /// > > I'm not exactly sure what Scott is trying to do, but it sounds like he > could even use the New() method of his control. > > -- > Mick Doherty > http://dotnetrix.co.uk/nothing.html > > > "Jared" <ask_me_for_it@nospam.com> wrote in message > news:10mgllbpa069b0@corp.supernews.com... >> Mick, >> Can you elaborate for my benefit? How does this let you know only when >> a control has been loaded in a parent container only? Thanks, >> Jared >> >> "Mick Doherty" >> <EXCHANGE#WITH@AND.REMOVE.SQUAREBRACKETS.[mdaudi100#ntlworld.com]> wrote >> in message news:uAdgoTkrEHA.1036@TK2MSFTNGP10.phx.gbl... >>> You could use the OnParentChanged method. >>> >>> -- >>> Mick Doherty >>> http://dotnetrix.co.uk/nothing.html >>> >>> >>> "Jared" <ask_me_for_it@nospam.com> wrote in message >>> news:10mgfnujfud4860@corp.supernews.com... >>>> I don't think you can do what you're asking, because there isn't an >>>> event inside of a control that fires when it is added to a parent >>>> container. You can use the controladded event in the parent form, but, >>>> you are no better off than form_load. >>>> >>>> You can inherit from the combobox and set the additional values when >>>> they are set. >>>> For example, lets say you want to add items to the combo box, but only >>>> if the back color is red. You can set the back color to red, and, in >>>> the property set definition you can provide the additional logic. >>>> >>>> I could be wrong, as often I am, but, others will help to point out any >>>> shortfalls in my thinking. >>>> HTH, >>>> Jared >>>> >>>> Public Class MyCombo >>>> Inherits ComboBox >>>> >>>> Sub New() >>>> MyBase.New() >>>> ' Add items to the combo box here. >>>> End Sub >>>> >>>> Protected Overrides Sub RefreshItem(ByVal index As Integer) >>>> MyBase.RefreshItem(index) >>>> End Sub >>>> >>>> Protected Overrides Sub SetItemsCore(ByVal items As >>>> System.Collections.IList) >>>> MyBase.SetItemsCore(items) >>>> End Sub >>>> >>>> Public Overrides Property BackColor() As Color >>>> Get >>>> Return MyBase.BackColor >>>> End Get >>>> Set(ByVal Value As Color) >>>> MyBase.BackColor = Value >>>> If Value.Equals(Color.Red) Then >>>> ' Set some additional values for the control. >>>> MsgBox("You choose red") >>>> Else >>>> ' Remove items here >>>> End If >>>> End Set >>>> End Property >>>> End Class >>>> >>>> "SQLScott" <SQLScott@discussions.microsoft.com> wrote in message >>>> news:8152D156-316F-497A-B367-FC5A0B03607F@microsoft.com... >>>>> Forgive me if this seems trivial, but any and all help is greatly >>>>> appreciated, and I will attempt to explain this as best I can. >>>>> >>>>> I have created a combo and added a certain number of properties to it. >>>>> When >>>>> I place that combo on a form, I set any number of those properties. >>>>> >>>>> What I would like to happen is during the load of the COMBO BOX, not >>>>> the >>>>> form, I would like to see what properties are set on the combo and >>>>> populate >>>>> the combo with data depending on what properties are set. >>>>> >>>>> Yes, I could do this on the load of the FORM, but then I would have to >>>>> write >>>>> code on each and every FORM_LOAD that I place the combo on. >>>>> >>>>> I know there is not an CONTROL_LOAD method, but is there an equivalent >>>>> that >>>>> I can use so that no matter how many forms I drop this combo on, the >>>>> code is >>>>> already with the combo, and all I have to do is set the properties? >>>>> >>>>> I sincerely hope this made sense. >>>>> >>>>> -- >>>>> Thanks, >>>>> >>>>> Scott >>>> >>>> >>> >>> >>> --- >>> Outgoing mail is certified Virus Free. >>> Checked by AVG anti-virus system (http://www.grisoft.com). >>> Version: 6.0.742 / Virus Database: 495 - Release Date: 19/08/2004 >>> >> >> > > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.742 / Virus Database: 495 - Release Date: 20/08/2004 >
You could use the OnParentChanged method.
-- Mick Doherty http://dotnetrix.co.uk/nothing.html [quoted text, click to view] "Jared" <ask_me_for_it@nospam.com> wrote in message news:10mgfnujfud4860@corp.supernews.com... > I don't think you can do what you're asking, because there isn't an event > inside of a control that fires when it is added to a parent container. You > can use the controladded event in the parent form, but, you are no better > off than form_load. > > You can inherit from the combobox and set the additional values when they > are set. > For example, lets say you want to add items to the combo box, but only if > the back color is red. You can set the back color to red, and, in the > property set definition you can provide the additional logic. > > I could be wrong, as often I am, but, others will help to point out any > shortfalls in my thinking. > HTH, > Jared > > Public Class MyCombo > Inherits ComboBox > > Sub New() > MyBase.New() > ' Add items to the combo box here. > End Sub > > Protected Overrides Sub RefreshItem(ByVal index As Integer) > MyBase.RefreshItem(index) > End Sub > > Protected Overrides Sub SetItemsCore(ByVal items As > System.Collections.IList) > MyBase.SetItemsCore(items) > End Sub > > Public Overrides Property BackColor() As Color > Get > Return MyBase.BackColor > End Get > Set(ByVal Value As Color) > MyBase.BackColor = Value > If Value.Equals(Color.Red) Then > ' Set some additional values for the control. > MsgBox("You choose red") > Else > ' Remove items here > End If > End Set > End Property > End Class > > "SQLScott" <SQLScott@discussions.microsoft.com> wrote in message > news:8152D156-316F-497A-B367-FC5A0B03607F@microsoft.com... >> Forgive me if this seems trivial, but any and all help is greatly >> appreciated, and I will attempt to explain this as best I can. >> >> I have created a combo and added a certain number of properties to it. >> When >> I place that combo on a form, I set any number of those properties. >> >> What I would like to happen is during the load of the COMBO BOX, not the >> form, I would like to see what properties are set on the combo and >> populate >> the combo with data depending on what properties are set. >> >> Yes, I could do this on the load of the FORM, but then I would have to >> write >> code on each and every FORM_LOAD that I place the combo on. >> >> I know there is not an CONTROL_LOAD method, but is there an equivalent >> that >> I can use so that no matter how many forms I drop this combo on, the code >> is >> already with the combo, and all I have to do is set the properties? >> >> I sincerely hope this made sense. >> >> -- >> Thanks, >> >> Scott > > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.742 / Virus Database: 495 - Release Date: 19/08/2004
This was a response to your answer which stated:
[quoted text, click to view] >I don't think you can do what you're asking, because there isn't an event >inside of a control that fires when it is added to a parent container. When you add a control to a container, that controls parent changes from Nothing (or it's previous container) to the Control that contains it, and it fires the ParentChanged event and the OnParentChanged method. \\\ Protected Overrides Sub OnParentChanged(ByVal e As System.EventArgs) MyBase.OnParentChanged(e) If Me.Parent Is Nothing Then Return If Me.DesignMode = False Then MsgBox(Me.Parent.ToString) End If End Sub /// I'm not exactly sure what Scott is trying to do, but it sounds like he could even use the New() method of his control. -- Mick Doherty http://dotnetrix.co.uk/nothing.html [quoted text, click to view] "Jared" <ask_me_for_it@nospam.com> wrote in message news:10mgllbpa069b0@corp.supernews.com... > Mick, > Can you elaborate for my benefit? How does this let you know only when > a control has been loaded in a parent container only? Thanks, > Jared > > "Mick Doherty" > <EXCHANGE#WITH@AND.REMOVE.SQUAREBRACKETS.[mdaudi100#ntlworld.com]> wrote > in message news:uAdgoTkrEHA.1036@TK2MSFTNGP10.phx.gbl... >> You could use the OnParentChanged method. >> >> -- >> Mick Doherty >> http://dotnetrix.co.uk/nothing.html >> >> >> "Jared" <ask_me_for_it@nospam.com> wrote in message >> news:10mgfnujfud4860@corp.supernews.com... >>> I don't think you can do what you're asking, because there isn't an >>> event inside of a control that fires when it is added to a parent >>> container. You can use the controladded event in the parent form, but, >>> you are no better off than form_load. >>> >>> You can inherit from the combobox and set the additional values when >>> they are set. >>> For example, lets say you want to add items to the combo box, but only >>> if the back color is red. You can set the back color to red, and, in the >>> property set definition you can provide the additional logic. >>> >>> I could be wrong, as often I am, but, others will help to point out any >>> shortfalls in my thinking. >>> HTH, >>> Jared >>> >>> Public Class MyCombo >>> Inherits ComboBox >>> >>> Sub New() >>> MyBase.New() >>> ' Add items to the combo box here. >>> End Sub >>> >>> Protected Overrides Sub RefreshItem(ByVal index As Integer) >>> MyBase.RefreshItem(index) >>> End Sub >>> >>> Protected Overrides Sub SetItemsCore(ByVal items As >>> System.Collections.IList) >>> MyBase.SetItemsCore(items) >>> End Sub >>> >>> Public Overrides Property BackColor() As Color >>> Get >>> Return MyBase.BackColor >>> End Get >>> Set(ByVal Value As Color) >>> MyBase.BackColor = Value >>> If Value.Equals(Color.Red) Then >>> ' Set some additional values for the control. >>> MsgBox("You choose red") >>> Else >>> ' Remove items here >>> End If >>> End Set >>> End Property >>> End Class >>> >>> "SQLScott" <SQLScott@discussions.microsoft.com> wrote in message >>> news:8152D156-316F-497A-B367-FC5A0B03607F@microsoft.com... >>>> Forgive me if this seems trivial, but any and all help is greatly >>>> appreciated, and I will attempt to explain this as best I can. >>>> >>>> I have created a combo and added a certain number of properties to it. >>>> When >>>> I place that combo on a form, I set any number of those properties. >>>> >>>> What I would like to happen is during the load of the COMBO BOX, not >>>> the >>>> form, I would like to see what properties are set on the combo and >>>> populate >>>> the combo with data depending on what properties are set. >>>> >>>> Yes, I could do this on the load of the FORM, but then I would have to >>>> write >>>> code on each and every FORM_LOAD that I place the combo on. >>>> >>>> I know there is not an CONTROL_LOAD method, but is there an equivalent >>>> that >>>> I can use so that no matter how many forms I drop this combo on, the >>>> code is >>>> already with the combo, and all I have to do is set the properties? >>>> >>>> I sincerely hope this made sense. >>>> >>>> -- >>>> Thanks, >>>> >>>> Scott >>> >>> >> >> >> --- >> Outgoing mail is certified Virus Free. >> Checked by AVG anti-virus system (http://www.grisoft.com). >> Version: 6.0.742 / Virus Database: 495 - Release Date: 19/08/2004 >> > > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.742 / Virus Database: 495 - Release Date: 20/08/2004
I appreciate all the feedback. Thank you.
I heard that ISupportInitialize might solve my problem. Has anyone used that? Any thoughts as to how you have used it? Scott [quoted text, click to view] "Jared" wrote:
> Thanks for the explanation Mick. > Jared > > "Mick Doherty" > <EXCHANGE#WITH@AND.REMOVE.SQUAREBRACKETS.[mdaudi100#ntlworld.com]> wrote in > message news:eUEIznlrEHA.1712@tk2msftngp13.phx.gbl... > > This was a response to your answer which stated: > >>I don't think you can do what you're asking, because there isn't an event > >>inside of a control that fires when it is added to a parent container. > > > > When you add a control to a container, that controls parent changes from > > Nothing (or it's previous container) to the Control that contains it, and > > it fires the ParentChanged event and the OnParentChanged method. > > > > \\\ > > Protected Overrides Sub OnParentChanged(ByVal e As System.EventArgs) > > MyBase.OnParentChanged(e) > > If Me.Parent Is Nothing Then Return > > If Me.DesignMode = False Then > > MsgBox(Me.Parent.ToString) > > End If > > End Sub > > /// > > > > I'm not exactly sure what Scott is trying to do, but it sounds like he > > could even use the New() method of his control. > > > > -- > > Mick Doherty > > http://dotnetrix.co.uk/nothing.html > > > > > > "Jared" <ask_me_for_it@nospam.com> wrote in message > > news:10mgllbpa069b0@corp.supernews.com... > >> Mick, > >> Can you elaborate for my benefit? How does this let you know only when > >> a control has been loaded in a parent container only? Thanks, > >> Jared > >> > >> "Mick Doherty" > >> <EXCHANGE#WITH@AND.REMOVE.SQUAREBRACKETS.[mdaudi100#ntlworld.com]> wrote > >> in message news:uAdgoTkrEHA.1036@TK2MSFTNGP10.phx.gbl... > >>> You could use the OnParentChanged method. > >>> > >>> -- > >>> Mick Doherty > >>> http://dotnetrix.co.uk/nothing.html > >>> > >>> > >>> "Jared" <ask_me_for_it@nospam.com> wrote in message > >>> news:10mgfnujfud4860@corp.supernews.com... > >>>> I don't think you can do what you're asking, because there isn't an > >>>> event inside of a control that fires when it is added to a parent > >>>> container. You can use the controladded event in the parent form, but, > >>>> you are no better off than form_load. > >>>> > >>>> You can inherit from the combobox and set the additional values when > >>>> they are set. > >>>> For example, lets say you want to add items to the combo box, but only > >>>> if the back color is red. You can set the back color to red, and, in > >>>> the property set definition you can provide the additional logic. > >>>> > >>>> I could be wrong, as often I am, but, others will help to point out any > >>>> shortfalls in my thinking. > >>>> HTH, > >>>> Jared > >>>> > >>>> Public Class MyCombo > >>>> Inherits ComboBox > >>>> > >>>> Sub New() > >>>> MyBase.New() > >>>> ' Add items to the combo box here. > >>>> End Sub > >>>> > >>>> Protected Overrides Sub RefreshItem(ByVal index As Integer) > >>>> MyBase.RefreshItem(index) > >>>> End Sub > >>>> > >>>> Protected Overrides Sub SetItemsCore(ByVal items As > >>>> System.Collections.IList) > >>>> MyBase.SetItemsCore(items) > >>>> End Sub > >>>> > >>>> Public Overrides Property BackColor() As Color > >>>> Get > >>>> Return MyBase.BackColor > >>>> End Get > >>>> Set(ByVal Value As Color) > >>>> MyBase.BackColor = Value > >>>> If Value.Equals(Color.Red) Then > >>>> ' Set some additional values for the control. > >>>> MsgBox("You choose red") > >>>> Else > >>>> ' Remove items here > >>>> End If > >>>> End Set > >>>> End Property > >>>> End Class > >>>> > >>>> "SQLScott" <SQLScott@discussions.microsoft.com> wrote in message > >>>> news:8152D156-316F-497A-B367-FC5A0B03607F@microsoft.com... > >>>>> Forgive me if this seems trivial, but any and all help is greatly > >>>>> appreciated, and I will attempt to explain this as best I can. > >>>>> > >>>>> I have created a combo and added a certain number of properties to it. > >>>>> When > >>>>> I place that combo on a form, I set any number of those properties. > >>>>> > >>>>> What I would like to happen is during the load of the COMBO BOX, not > >>>>> the > >>>>> form, I would like to see what properties are set on the combo and > >>>>> populate > >>>>> the combo with data depending on what properties are set. > >>>>> > >>>>> Yes, I could do this on the load of the FORM, but then I would have to > >>>>> write > >>>>> code on each and every FORM_LOAD that I place the combo on. > >>>>> > >>>>> I know there is not an CONTROL_LOAD method, but is there an equivalent > >>>>> that > >>>>> I can use so that no matter how many forms I drop this combo on, the > >>>>> code is > >>>>> already with the combo, and all I have to do is set the properties? > >>>>> > >>>>> I sincerely hope this made sense. > >>>>> > >>>>> -- > >>>>> Thanks, > >>>>> > >>>>> Scott > >>>> > >>>> > >>> > >>> > >>> --- > >>> Outgoing mail is certified Virus Free. > >>> Checked by AVG anti-virus system (http://www.grisoft.com). > >>> Version: 6.0.742 / Virus Database: 495 - Release Date: 19/08/2004 > >>> > >> > >> > > > > > > --- > > Outgoing mail is certified Virus Free. > > Checked by AVG anti-virus system (http://www.grisoft.com). > > Version: 6.0.742 / Virus Database: 495 - Release Date: 20/08/2004 > > > >
Just an FYI. The ISupportInitialize did solve my problem and did exactly
what I was looking for. By putting code in the EndInit of the control, it performed exacly as expected. Scott [quoted text, click to view] "SQLScott" wrote:
> I appreciate all the feedback. Thank you. > > I heard that ISupportInitialize might solve my problem. Has anyone used > that? Any thoughts as to how you have used it? > > Scott > > "Jared" wrote: > > > Thanks for the explanation Mick. > > Jared > > > > "Mick Doherty" > > <EXCHANGE#WITH@AND.REMOVE.SQUAREBRACKETS.[mdaudi100#ntlworld.com]> wrote in > > message news:eUEIznlrEHA.1712@tk2msftngp13.phx.gbl... > > > This was a response to your answer which stated: > > >>I don't think you can do what you're asking, because there isn't an event > > >>inside of a control that fires when it is added to a parent container. > > > > > > When you add a control to a container, that controls parent changes from > > > Nothing (or it's previous container) to the Control that contains it, and > > > it fires the ParentChanged event and the OnParentChanged method. > > > > > > \\\ > > > Protected Overrides Sub OnParentChanged(ByVal e As System.EventArgs) > > > MyBase.OnParentChanged(e) > > > If Me.Parent Is Nothing Then Return > > > If Me.DesignMode = False Then > > > MsgBox(Me.Parent.ToString) > > > End If > > > End Sub > > > /// > > > > > > I'm not exactly sure what Scott is trying to do, but it sounds like he > > > could even use the New() method of his control. > > > > > > -- > > > Mick Doherty > > > http://dotnetrix.co.uk/nothing.html > > > > > > > > > "Jared" <ask_me_for_it@nospam.com> wrote in message > > > news:10mgllbpa069b0@corp.supernews.com... > > >> Mick, > > >> Can you elaborate for my benefit? How does this let you know only when > > >> a control has been loaded in a parent container only? Thanks, > > >> Jared > > >> > > >> "Mick Doherty" > > >> <EXCHANGE#WITH@AND.REMOVE.SQUAREBRACKETS.[mdaudi100#ntlworld.com]> wrote > > >> in message news:uAdgoTkrEHA.1036@TK2MSFTNGP10.phx.gbl... > > >>> You could use the OnParentChanged method. > > >>> > > >>> -- > > >>> Mick Doherty > > >>> http://dotnetrix.co.uk/nothing.html > > >>> > > >>> > > >>> "Jared" <ask_me_for_it@nospam.com> wrote in message > > >>> news:10mgfnujfud4860@corp.supernews.com... > > >>>> I don't think you can do what you're asking, because there isn't an > > >>>> event inside of a control that fires when it is added to a parent > > >>>> container. You can use the controladded event in the parent form, but, > > >>>> you are no better off than form_load. > > >>>> > > >>>> You can inherit from the combobox and set the additional values when > > >>>> they are set. > > >>>> For example, lets say you want to add items to the combo box, but only > > >>>> if the back color is red. You can set the back color to red, and, in > > >>>> the property set definition you can provide the additional logic. > > >>>> > > >>>> I could be wrong, as often I am, but, others will help to point out any > > >>>> shortfalls in my thinking. > > >>>> HTH, > > >>>> Jared > > >>>> > > >>>> Public Class MyCombo > > >>>> Inherits ComboBox > > >>>> > > >>>> Sub New() > > >>>> MyBase.New() > > >>>> ' Add items to the combo box here. > > >>>> End Sub > > >>>> > > >>>> Protected Overrides Sub RefreshItem(ByVal index As Integer) > > >>>> MyBase.RefreshItem(index) > > >>>> End Sub > > >>>> > > >>>> Protected Overrides Sub SetItemsCore(ByVal items As > > >>>> System.Collections.IList) > > >>>> MyBase.SetItemsCore(items) > > >>>> End Sub > > >>>> > > >>>> Public Overrides Property BackColor() As Color > > >>>> Get > > >>>> Return MyBase.BackColor > > >>>> End Get > > >>>> Set(ByVal Value As Color) > > >>>> MyBase.BackColor = Value > > >>>> If Value.Equals(Color.Red) Then > > >>>> ' Set some additional values for the control. > > >>>> MsgBox("You choose red") > > >>>> Else > > >>>> ' Remove items here > > >>>> End If > > >>>> End Set > > >>>> End Property > > >>>> End Class > > >>>> > > >>>> "SQLScott" <SQLScott@discussions.microsoft.com> wrote in message > > >>>> news:8152D156-316F-497A-B367-FC5A0B03607F@microsoft.com... > > >>>>> Forgive me if this seems trivial, but any and all help is greatly > > >>>>> appreciated, and I will attempt to explain this as best I can. > > >>>>> > > >>>>> I have created a combo and added a certain number of properties to it. > > >>>>> When > > >>>>> I place that combo on a form, I set any number of those properties. > > >>>>> > > >>>>> What I would like to happen is during the load of the COMBO BOX, not > > >>>>> the > > >>>>> form, I would like to see what properties are set on the combo and > > >>>>> populate > > >>>>> the combo with data depending on what properties are set. > > >>>>> > > >>>>> Yes, I could do this on the load of the FORM, but then I would have to > > >>>>> write > > >>>>> code on each and every FORM_LOAD that I place the combo on. > > >>>>> > > >>>>> I know there is not an CONTROL_LOAD method, but is there an equivalent > > >>>>> that > > >>>>> I can use so that no matter how many forms I drop this combo on, the > > >>>>> code is > > >>>>> already with the combo, and all I have to do is set the properties? > > >>>>> > > >>>>> I sincerely hope this made sense. > > >>>>> > > >>>>> -- > > >>>>> Thanks, > > >>>>> > > >>>>> Scott > > >>>> > > >>>> > > >>> > > >>> > > >>> --- > > >>> Outgoing mail is certified Virus Free. > > >>> Checked by AVG anti-virus system (http://www.grisoft.com). > > >>> Version: 6.0.742 / Virus Database: 495 - Release Date: 19/08/2004 > > >>> > > >> > > >> > > > > > > > > > --- > > > Outgoing mail is certified Virus Free. > > > Checked by AVG anti-virus system (http://www.grisoft.com). > > > Version: 6.0.742 / Virus Database: 495 - Release Date: 20/08/2004 > > > > > > >
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