Changing window clientidmode to static causes JavaScript error

[mc2000]

Here is my RadWindow declaration:

<telerik:RadWindow ID="VideoPlayerWindow" ClientIDMode="Static" runat="server" Modal="True" VisibleOnPageLoad="false" EnableShadow="true"
    Behaviors="Close" ReloadOnShow="true" AutoSize="true" OnClientBeforeClose="StopVideo">
    <ContentTemplate>
        <asp:UpdatePanel ID="VideoPlayerUpdatePanel" runat="server" UpdateMode="Always">
        <ContentTemplate>
        <uc1:ucVideo ID="Video1" runat="server" />
        </ContentTemplate>
        </asp:UpdatePanel>
    </ContentTemplate>
</telerik:RadWindow>

My previous JavaScript code to open the window was a little redundant if not messy (BEFORE SETTING CLIENTIDMODE = STATIC)

...
if (clientId == "VideoPlayerWindow") { oWnd = $find("<%=VideoPlayerWindow.ClientID%>"); }
...

I wanted to set the clientidmode to static and change the code to

oWnd = $find(clientId);

which returns a RadWindow object. When the window goes to open, however I get a JavaScript error and the window is blank:

Microsoft JScript runtime error: 'this._contentElement.style' is null or not an object
The line in ScriptResource:

}

 

if(this._dockMode){this._contentElement.style.width="1px";

I am using the 2010.3.x version of the RadControls for ASP.NET. Thanks!

[Georgi Tunev]

Hi mc2000,

Yes, we are familiar with this issue (there are several threads about this in the forums), however this behavior is expected. Microsoft recommends using ClientIDMode=Static only for static control. RadControls on the other hand are controls with complex hierarchies of child controls and templates so setting their ClientID mode to static will break their functionality.



Kind regards,
Georgi Tunev
the Telerik team

[Ziga HABJAN]

Will this be fixed? (I see no good reason why you couldn't make it work with a static clientid - it's just the "root" element id - and it does work in radgrid, which is probably more complex than window itself (hierarchy, templates, etc, ...))..

[Marin Bratanov]

Hello Ziga,

There are plans to improve integration with ClientIDMode=Static, but I cannot offer an ETA at the moment. For the time being I advise against using it for any of our controls, as unpredictable issues may arise, even if things seem to work fine initially.

Regards,

Marin Bratanov
Telerik