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[Solved] GetRadWindowManager and $find()

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Robert asked on 03 Nov 2007, 03:45 PM

Hi,

I have been unsuccessful in obtaining a reference to the RadWindowManager via the GetRadWindowManager or the $find() calls.

$find returns null and GetRadWindowManager returns undefined.

Any help would be greatly appreciated.

Thanks in advance,
Robert

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> 
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> 
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head runat="server"> 
    <title>Untitled Page</title> 
     
    <script language="javascript" type="text/javascript">   
           
            function OpenWindow(name) 
            { 
                alert(name); 
                 
                var mgr =  $find('RadWindowManager1'); // GetRadWindowManager(); 
                 
                var wnd = mgr.open("http://www.google.com", null);          
                 
                return false; 
            }   
               
    </script> 
     
       
</head> 
<body> 
    <form id="form1" runat="server"> 
        <asp:ScriptManager ID="ScriptManager1" runat="server" /> 
        <telerik:RadWindowManager ID="RadWindowManager1" runat="server"> 
            <Windows> 
                <telerik:RadWindow ID="RadWindow1" runat="server"> 
                </telerik:RadWindow> 
            </Windows> 
        </telerik:RadWindowManager> 
         
        
        <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />       
        <asp:Label ID="InjectScript" runat="server" Text=""></asp:Label> 
 
    </form> 
</body> 
</html> 
 

protected void Button1_Click(object sender, EventArgs e) 
    { 
        InjectScript.Text = "<script type='text/javascript'>OpenWindow('RadWindowServicePopup')</script>"; 
    } 

7 Answers, 1 is accepted

answered on 05 Nov 2007, 09:48 AM

Hello Robert,

You need to make sure that the page will be fully loaded and the RadWindowManager is rendered on the page before you call the Javascript.
In ASP.NET AJAX environment this can be done by registering to the Sys.Application.load() event:

protected void Button1_Click(object sender, EventArgs e)    

{  

    InjectScript.Text = "<script type='text/javascript'>Sys.Application.add_load(function(){OpenWindow('RadWindowServicePopup')})</script>";    

}

Greetings,
Georgi Tunev
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

answered on 06 Jan 2010, 11:52 PM

I had similar symptoms (everything was returning undefined or null) and came across this thread, but nothing was helping.

My problem was a really simple stupid one: All the objects need to be inside the <form> tags (RadWindowManager, RadScriptManager, and any calls to Sys.Application.add_load()). Other javascript can be outside of it, it seems, but not the Sys calls.

A previous developer who worked on this page that I am trying to convert to the ajax controls combined the page with the master page code, and what they ended up doing is putting all the master page code outside of the <form> tags.

Posting here to hopefully remind anyone of this possibility if they run into a poorly pieced together page like I did here.