"Grant Merwitz" <driftzilla@xbox-360.co.za> wrote in message
news:OOqU23tbHHA.4888@TK2MSFTNGP06.phx.gbl...
> Hi
>
> I am trying to implement the Microsoft Ajax.NET extensions to perform a
> lookup on a key press of a text box.
>
> What this will do is once a user enters a letter into the textbox,
> this will filter a list from a database and populate some filtered options
> for the user to choose in a seperate listbox.
> Any subsequent key presses will further filter this result set.
>
> Now utilising the OnTextChanged property of the textbox, this works
> perfectly.
> Except you have to tab out of the textbox to trigger the event.
>
> So to make the on key press event work, in my Page_Load i added the
> onkeypress attribute to the textbox and specified this to trigger the text
> changed event.
> tbSearchTerm.Attributes.Add("onkeypress",
> Page.ClientScript.GetPostBackEventReference(tbSearchTerm, ""));
>
> Now this kind of seems to work, but has a one character delay.
>
> Example:
>
> action: I enter the character "A" into the textbox.
> result: Nothing happens
>
> action: I enter an additional character "B" into the textbox
> result: Results for the letter "A" are now returned
>
> action: I enter my third character "C" into the textbox
> result: Results for a search for letters "AB" are now returned.
>
> This is causing a most undesirable effect.
>
> How is one supposed to utilise an OnKeyPress action in the AJAX.Net
> framework?
> This was downloaded from:
> http://ajax.asp.net/
> And i have been unable to find another solution to this problem.
>
> Any advice would be greatly appreciated
>
> TIA
>

"Ben Rush" <kwendex@yahoo.com> wrote in message
news:eZultKvbHHA.2188@TK2MSFTNGP04.phx.gbl...
> I'm not sure I can be of much more help than sharing some code I made a
> long, long time ago; back when it was still "Atlas" - I just scrounged it
> up from the archives of my hard drive. So, some things may have changed a
> bit, but hopefully this can give you some kind of a head start. I'm sorry,
> at the moment I can't do much more due to time restrictions:
>
> I used the AutoCompleteExtender:
>
> <asp:TextBox ID="TextBox_ToLine"
> runat="server"></asp:TextBox>
> <atlas:AutoCompleteExtender ID="AutoCompleteExtender1"
> ServicePath="WebService.asmx"
> ServiceMethod="GetToLineSuggestions"
> MinimumPrefixLength="3" runat="server">
> <atlas:AutoCompleteProperties
> TargetControlID="TextBox_ToLine" Enabled="true" />
> </atlas:AutoCompleteExtender>
>
> This, like a lot of ASP.Net AJAX, utilizes web services. This is the
> service method that I created to handle this:
>
> <WebMethod(EnableSession:=True)> _
> Public Function GetToLineSuggestions(ByVal prefixText As String, ByVal
> count As Int32) As String()
> ' call into stored procedure code - can't show
> End Function
>
> ...sorry man, I can't give more than that at the moment.
>
> --
> ~~~~~~~~~~~
> Ben Rush
> http://www.ben-rush.net/blog
>
>
> "Grant Merwitz" <driftzilla@xbox-360.co.za> wrote in message
> news:OOqU23tbHHA.4888@TK2MSFTNGP06.phx.gbl...
>> Hi
>>
>> I am trying to implement the Microsoft Ajax.NET extensions to perform a
>> lookup on a key press of a text box.
>>
>> What this will do is once a user enters a letter into the textbox,
>> this will filter a list from a database and populate some filtered
>> options for the user to choose in a seperate listbox.
>> Any subsequent key presses will further filter this result set.
>>
>> Now utilising the OnTextChanged property of the textbox, this works
>> perfectly.
>> Except you have to tab out of the textbox to trigger the event.
>>
>> So to make the on key press event work, in my Page_Load i added the
>> onkeypress attribute to the textbox and specified this to trigger the
>> text changed event.
>> tbSearchTerm.Attributes.Add("onkeypress",
>> Page.ClientScript.GetPostBackEventReference(tbSearchTerm, ""));
>>
>> Now this kind of seems to work, but has a one character delay.
>>
>> Example:
>>
>> action: I enter the character "A" into the textbox.
>> result: Nothing happens
>>
>> action: I enter an additional character "B" into the textbox
>> result: Results for the letter "A" are now returned
>>
>> action: I enter my third character "C" into the textbox
>> result: Results for a search for letters "AB" are now returned.
>>
>> This is causing a most undesirable effect.
>>
>> How is one supposed to utilise an OnKeyPress action in the AJAX.Net
>> framework?
>> This was downloaded from:
>> http://ajax.asp.net/
>> And i have been unable to find another solution to this problem.
>>
>> Any advice would be greatly appreciated
>>
>> TIA
>>
>
>

"Grant Merwitz" <driftzilla@xbox-360.co.za> wrote in message
news:%23mX3g85bHHA.4716@TK2MSFTNGP02.phx.gbl...
> thanks for your advice
>
> But I can't seem to find these components in the new framework
> (atlas:AutoCompleteExtender)
> I'm kind of late to these Ajax.NET extensions, and only caught on with the
> latest release 1.0.
>
> I've also managed to find several atlas solutions for this problem online,
> but i can't seem to use any of them.
>
> The only components that seem to come out the box are:
> Pointer
> Timer
> ScriptManager
> ScriptManagerProxy
> UpdateProgress
> UpdatePanel
>
> I also haven't had to declare a web method or create a web service to
> utlise Ajax.NET functionality.
>
> All controls placed in the UpdatePanel, or referenced by an UpdatePanel
> trigger,
> will call my page methods directly without me needing to create a .asmx
> page or declare a web method.
>
> Hopefully you or someone else can advice me futher,
> i've also posted on the ajax.asp.net forum, and will post my solution here
> if i find one.
>
> thanks again
>
> "Ben Rush" <kwendex@yahoo.com> wrote in message
> news:eZultKvbHHA.2188@TK2MSFTNGP04.phx.gbl...
>> I'm not sure I can be of much more help than sharing some code I made a
>> long, long time ago; back when it was still "Atlas" - I just scrounged it
>> up from the archives of my hard drive. So, some things may have changed a
>> bit, but hopefully this can give you some kind of a head start. I'm
>> sorry, at the moment I can't do much more due to time restrictions:
>>
>> I used the AutoCompleteExtender:
>>
>> <asp:TextBox ID="TextBox_ToLine"
>> runat="server"></asp:TextBox>
>> <atlas:AutoCompleteExtender ID="AutoCompleteExtender1"
>> ServicePath="WebService.asmx"
>> ServiceMethod="GetToLineSuggestions"
>> MinimumPrefixLength="3" runat="server">
>> <atlas:AutoCompleteProperties
>> TargetControlID="TextBox_ToLine" Enabled="true" />
>> </atlas:AutoCompleteExtender>
>>
>> This, like a lot of ASP.Net AJAX, utilizes web services. This is the
>> service method that I created to handle this:
>>
>> <WebMethod(EnableSession:=True)> _
>> Public Function GetToLineSuggestions(ByVal prefixText As String, ByVal
>> count As Int32) As String()
>> ' call into stored procedure code - can't show
>> End Function
>>
>> ...sorry man, I can't give more than that at the moment.
>>
>> --
>> ~~~~~~~~~~~
>> Ben Rush
>> http://www.ben-rush.net/blog
>>
>>
>> "Grant Merwitz" <driftzilla@xbox-360.co.za> wrote in message
>> news:OOqU23tbHHA.4888@TK2MSFTNGP06.phx.gbl...
>>> Hi
>>>
>>> I am trying to implement the Microsoft Ajax.NET extensions to perform a
>>> lookup on a key press of a text box.
>>>
>>> What this will do is once a user enters a letter into the textbox,
>>> this will filter a list from a database and populate some filtered
>>> options for the user to choose in a seperate listbox.
>>> Any subsequent key presses will further filter this result set.
>>>
>>> Now utilising the OnTextChanged property of the textbox, this works
>>> perfectly.
>>> Except you have to tab out of the textbox to trigger the event.
>>>
>>> So to make the on key press event work, in my Page_Load i added the
>>> onkeypress attribute to the textbox and specified this to trigger the
>>> text changed event.
>>> tbSearchTerm.Attributes.Add("onkeypress",
>>> Page.ClientScript.GetPostBackEventReference(tbSearchTerm, ""));
>>>
>>> Now this kind of seems to work, but has a one character delay.
>>>
>>> Example:
>>>
>>> action: I enter the character "A" into the textbox.
>>> result: Nothing happens
>>>
>>> action: I enter an additional character "B" into the textbox
>>> result: Results for the letter "A" are now returned
>>>
>>> action: I enter my third character "C" into the textbox
>>> result: Results for a search for letters "AB" are now returned.
>>>
>>> This is causing a most undesirable effect.
>>>
>>> How is one supposed to utilise an OnKeyPress action in the AJAX.Net
>>> framework?
>>> This was downloaded from:
>>> http://ajax.asp.net/
>>> And i have been unable to find another solution to this problem.
>>>
>>> Any advice would be greatly appreciated
>>>
>>> TIA
>>>
>>
>>
>
>

"Grant Merwitz" wrote:

> Hi
>
> I am trying to implement the Microsoft Ajax.NET extensions to perform a
> lookup on a key press of a text box.
>
> What this will do is once a user enters a letter into the textbox,
> this will filter a list from a database and populate some filtered options
> for the user to choose in a seperate listbox.
> Any subsequent key presses will further filter this result set.
>
> Now utilising the OnTextChanged property of the textbox, this works
> perfectly.
> Except you have to tab out of the textbox to trigger the event.
>
> So to make the on key press event work, in my Page_Load i added the
> onkeypress attribute to the textbox and specified this to trigger the text
> changed event.
> tbSearchTerm.Attributes.Add("onkeypress",
> Page.ClientScript.GetPostBackEventReference(tbSearchTerm, ""));
>
> Now this kind of seems to work, but has a one character delay.
>
> Example:
>
> action: I enter the character "A" into the textbox.
> result: Nothing happens
>
> action: I enter an additional character "B" into the textbox
> result: Results for the letter "A" are now returned
>
> action: I enter my third character "C" into the textbox
> result: Results for a search for letters "AB" are now returned.
>
> This is causing a most undesirable effect.
>
> How is one supposed to utilise an OnKeyPress action in the AJAX.Net
> framework?
> This was downloaded from:
> http://ajax.asp.net/
> And i have been unable to find another solution to this problem.
>
> Any advice would be greatly appreciated
>
> TIA
>
>