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RadDatePicker inside of a RadWindow cause javascript exception on postback

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Roman asked on 29 Jun 2010, 03:43 PM

Hello
A RadDatePicker placed in the content template of a RadWindow, that is placed inside of an update panel, cause javascript "Sys.InvalidOperationException: Two components with the same id '' can't be added to the application." exception on postback.
To get it follow repro steps below.

Using Telerik.Web.UI.dll 2010.1.429.20 version.
Repro steps:
1) Create a Web Form
2) Use this code as the form source:

    
            <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <html xmlns="http://www.w3.org/1999/xhtml" > 
        
            <head runat="server"> 
        
                <title>Untitled Page</title> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server"> 
        
                <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager> 
        
                <div> 
        
                <telerik:RadAjaxManager runat="server" ID="ajaxManager"> 
        
                    <AjaxSettings> 
        
                        <telerik:AjaxSetting AjaxControlID="radWindow"> 
        
                            <UpdatedControls> 
        
                                <telerik:AjaxUpdatedControl ControlID="radWindow" /> 
        
                            </UpdatedControls> 
        
                        </telerik:AjaxSetting> 
        
                    </AjaxSettings> 
        
                </telerik:RadAjaxManager> 
        
                <telerik:RadWindow runat="server" ID="radWindow" VisibleOnPageLoad="true"> 
        
                    <ContentTemplate> 
        
                        <telerik:RadDatePicker AutoPostBack="true" runat="server" ID="radDatePicker"></telerik:RadDatePicker> 
        
                    </ContentTemplate> 
        
                </telerik:RadWindow> 
        
                </div> 
        
                </form> 
        
            </body> 
        
            </html>

3) Open the form in a browser
4) Pick up a date
5)Observe javascript exception "Sys.InvalidOperationException: Two components with the same id 'radWindow_C_radDatePicker' can't be added to the application."
Please provide a workaround as soon as possible.

RadDatePicker inside of a RadWindow cause javascript exception on postback

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