> Hi,
>
> I've created a User Defined Control (.cs class) using JavaScript to
> address another control. This only works when my UDC resides on the
> .aspx page itself. If I add it to a Web User Control (.ascx), the
> target control's ID attribute gets changed by ASP.NET and I can't
> address it anymore from my generated JavaScript code.
>
> Can someone please enlighten me on the following: How can I get the
> prefix of the container my UDC is in? Is there a function available
> telling me if the target ID belongs to a server control
> (Runat="server")?
>
> Here's some more information:
>
> My UDC basically provides a property allowing the web page author to
> enter the ID of the targeted control, like:
>
> <myNS:myCtrl Runat="server" ID="myControl" TargetID="MoveIt"/>
> ...
> <asp:Panel Runat="server" ID="MoveIt"></asp:Panel>
> In the source of my UDC I generate JavaScript to address the other
> control:
>
> Page.RegisterClientScriptBlock("x"
> , "<script>document.getElementById(" + TargetID +
> ")...</script>");
> If TargetID points to a server control, I'd like to be able to add the
> context prefix of my UDC's container to the generated JavaScript code.
>
> TIA,
> Axel Dahme

> Actually this is what I did. See the C# excerpt below. It's from my
> UDC's Page_Init() function.
>
> --------
> "Brock Allen" <ballen@NOSPAMdevelop.com> wrote in message
> news:b8743b114ee7e8c7bcaa52522485@msnews.microsoft.com...
>> Your javascript in the client can't have a hardcoded ID for the
>> control. Instead you're going to have to dynamically alter & emit
>> your javascript to take into consideration whatever that ID will be.
>> The way you determine the ID in the browser is to ask the control on
>> the server via the
>>
> control's
>
>> ClientID property.
>>
>> -Brock
>> DevelopMentor
>> http://staff.develop.com/ballen
>>> Hi,
>>>
>>> I've created a User Defined Control (.cs class) using JavaScript to
>>> address another control. This only works when my UDC resides on the
>>> .aspx page itself. If I add it to a Web User Control (.ascx), the
>>> target control's ID attribute gets changed by ASP.NET and I can't
>>> address it anymore from my generated JavaScript code.
>>>
>>> Can someone please enlighten me on the following: How can I get the
>>> prefix of the container my UDC is in? Is there a function available
>>> telling me if the target ID belongs to a server control
>>> (Runat="server")?
>>>
>>> Here's some more information:
>>>
>>> My UDC basically provides a property allowing the web page author to
>>> enter the ID of the targeted control, like:
>>>
>>> <myNS:myCtrl Runat="server" ID="myControl" TargetID="MoveIt"/>
>>> ...
>>> <asp:Panel Runat="server" ID="MoveIt"></asp:Panel>
>>> In the source of my UDC I generate JavaScript to address the other
>>> control:
>>> Page.RegisterClientScriptBlock("x"
>>> , "<script>document.getElementById(" + TargetID +
>>> ")...</script>");
>>> If TargetID points to a server control, I'd like to be able to add
>>> the
>>> context prefix of my UDC's container to the generated JavaScript
>>> code.
>>> TIA,
>>> Axel Dahmen

"Brock Allen" <ballen@NOSPAMdevelop.com> wrote in message
news:b8743b114ee7e8c7bcaa52522485@msnews.microsoft.com...
> Your javascript in the client can't have a hardcoded ID for the control.
> Instead you're going to have to dynamically alter & emit your javascript
> to take into consideration whatever that ID will be. The way you determine
> the ID in the browser is to ask the control on the server via the
control's
> ClientID property.
>
> -Brock
> DevelopMentor
> http://staff.develop.com/ballen
>
> > Hi,
> >
> > I've created a User Defined Control (.cs class) using JavaScript to
> > address another control. This only works when my UDC resides on the
> > .aspx page itself. If I add it to a Web User Control (.ascx), the
> > target control's ID attribute gets changed by ASP.NET and I can't
> > address it anymore from my generated JavaScript code.
> >
> > Can someone please enlighten me on the following: How can I get the
> > prefix of the container my UDC is in? Is there a function available
> > telling me if the target ID belongs to a server control
> > (Runat="server")?
> >
> > Here's some more information:
> >
> > My UDC basically provides a property allowing the web page author to
> > enter the ID of the targeted control, like:
> >
> > <myNS:myCtrl Runat="server" ID="myControl" TargetID="MoveIt"/>
> > ...
> > <asp:Panel Runat="server" ID="MoveIt"></asp:Panel>
> > In the source of my UDC I generate JavaScript to address the other
> > control:
> >
> > Page.RegisterClientScriptBlock("x"
> > , "<script>document.getElementById(" + TargetID +
> > ")...</script>");
> > If TargetID points to a server control, I'd like to be able to add the
> > context prefix of my UDC's container to the generated JavaScript code.
> >
> > TIA,
> > Axel Dahmen
>
>

"Brock Allen" <ballen@NOSPAMdevelop.com> wrote in message
news:b8743b114f3208c7bcb5368611a7@msnews.microsoft.com...
> I simply think you need to do:
>
> Page.RegisterClientScriptBlock("x"
> , "<script>document.getElementById('" + myControl.ClientID +
> '")...</script>");
>
> Note the additional single quotes added to getElementById
>
> -Brock
> DevelopMentor
> http://staff.develop.com/ballen
>
> > Actually this is what I did. See the C# excerpt below. It's from my
> > UDC's Page_Init() function.
> >
> > --------
> > "Brock Allen" <ballen@NOSPAMdevelop.com> wrote in message
> > news:b8743b114ee7e8c7bcaa52522485@msnews.microsoft.com...
> >> Your javascript in the client can't have a hardcoded ID for the
> >> control. Instead you're going to have to dynamically alter & emit
> >> your javascript to take into consideration whatever that ID will be.
> >> The way you determine the ID in the browser is to ask the control on
> >> the server via the
> >>
> > control's
> >
> >> ClientID property.
> >>
> >> -Brock
> >> DevelopMentor
> >> http://staff.develop.com/ballen
> >>> Hi,
> >>>
> >>> I've created a User Defined Control (.cs class) using JavaScript to
> >>> address another control. This only works when my UDC resides on the
> >>> .aspx page itself. If I add it to a Web User Control (.ascx), the
> >>> target control's ID attribute gets changed by ASP.NET and I can't
> >>> address it anymore from my generated JavaScript code.
> >>>
> >>> Can someone please enlighten me on the following: How can I get the
> >>> prefix of the container my UDC is in? Is there a function available
> >>> telling me if the target ID belongs to a server control
> >>> (Runat="server")?
> >>>
> >>> Here's some more information:
> >>>
> >>> My UDC basically provides a property allowing the web page author to
> >>> enter the ID of the targeted control, like:
> >>>
> >>> <myNS:myCtrl Runat="server" ID="myControl" TargetID="MoveIt"/>
> >>> ...
> >>> <asp:Panel Runat="server" ID="MoveIt"></asp:Panel>
> >>> In the source of my UDC I generate JavaScript to address the other
> >>> control:
> >>> Page.RegisterClientScriptBlock("x"
> >>> , "<script>document.getElementById(" + TargetID +
> >>> ")...</script>");
> >>> If TargetID points to a server control, I'd like to be able to add
> >>> the
> >>> context prefix of my UDC's container to the generated JavaScript
> >>> code.
> >>> TIA,
> >>> Axel Dahmen
>
>