GetRadWindowManager() always returns 'undefined' in May 2008 release

[Paul]

I'm trying to get a rad window to show that used to show ok in previous versions of telerik but now the GetRadWindowManager always returns 'undefined'.  Is this a backward compatability issue?

function

ShowWindow()
{
var omanager = GetRadWindowManager();
var ownd = omanager.getWindowByName("DialogWindow1");
ownd.show();
}
 

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

<telerik:RadWindowManager id="Singleton" runat="server" ClientCallBackFunction="ResetPasswordWindowClosed" >

<windows>

<telerik:RadWindow id="DialogWindow1"

Modal = "true"

Runat="server"

Width="600px"

Height="250px"

Title="Reset Password"

NavigateUrl="~/Support/ResetPassword.aspx"

Skin="WebBlue"

VisibleStatusbar="false"

Behavior="Close"

>

</telerik:RadWindow>

</windows>

</telerik:RadWindowManager>


//and in code behind

public void OpenResetPasswordWindow()
{
literalInjectJavascript.Text = "<script type='text/javascript'> ShowWindow(); </script>";
}

I've tried numerous different examples from telerik site but whenever I call GetRadWindowManager() the result is always 'undefined'.

Your help is most appreciated as I've spent most of the day trying to get this working.
Thankyou

[Svetlina Anati]

Hello Paul,

The controls in the RadControls for ASP.NET AJAX suite are built upon the MS AJAX framework and the framework itself creates its controls (including RadWindow) in the Sys.Application.add_init() method - you can check this for yourself by examining the HTML dump of a page with RadControls for ASP.NET AJAX included in it (or any other ASP.NET AJAX control).

That is why when you try to obtain a reference to the RadWindowManager its client object is still not created. To correctly reference it you should add a load handler as shown below:

 literalInjectJavascript.Text = "<script type='text/javascript'> Sys.Application.add_load(ShowWindow); </script>";

Another option is to execute your code with a small timeout.

For your convenience I am attaching your modified code.

Sincerely yours,

Svetlina
the Telerik team

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

[Paul]

Thankyou so much,  it's working now.  phew what a relief.
Thanks

[cy19]

I'm doing something similar and getting a similar error (GetRadWindowManager always returns 'undefined').

Mine's a bit different though, in that I'm using it on the MasterPage, calling it from a Menu.  Here's where it's called:

<telerik:RadMenuItem runat="server" Text="Bookmarks">
   <Items>
      <telerik:RadMenuItem runat="server" Text="Bookmark Page" NavigateUrl="javascript:Bookmark();">
      </telerik:RadMenuItem>
   </Items>
</telerik:RadMenuItem>

Here's the Window Manager:

<telerik:RadWindowManager ID="windowMgr" runat="server" ReloadOnShow="true">
        <Windows>
            <telerik:RadWindow 
                ReloadOnShow="true"
                NavigateUrl="~/Bookmarks/AddBookmark.aspx"
                ClientCallBackFunction="TriggerEvent"   
                runat="server"
                Height="400"
                Width="400"
                ID="BookmarkWindow"  
                Behavior="Close,Resize,Move"
                VisibleStatusbar="false" IconUrl="../favicon.ico" Modal="true">
            </telerik:RadWindow>
        </Windows>
</telerik:RadWindowManager>

And the javascript:

function Bookmark()
{
    var omanager = GetRadWindowManager();
   
    alert(omanager);  //Always shows undefined
    var ownd = omanager.getWindowByName("BookmarkWindow");
    ownd.show();
}

So with what I have to work with, I can't really do an onclick and add in that add_load function since I can't add an onclick to the RadMenuItem.  I tried to put it right into it like this:

<telerik:RadMenuItem runat="server" Text="Bookmark Page" NavigateUrl="javascript:Sys.Application.add_load(Bookmark());">

But that doesn't work either.

Any ideas for me?

Thank you,

Chris

[Svetlina Anati]

Hello cy19,

I tested your code and it works as expected on my side, the RadWindowManager object is referenced and a RadWindow opens. Furthermore, in your particular case you do not have to add a load handler, because when you click on the menu item you actually do not perform a postback.

Please, find my test project attached and test it on your side.

In case you still experience problems, prepare a new, fully runnable project or modify mine in order to reproduce the described behavior, open a new support ticket and send it to me. Once I receive it, I will locate the problem and I will modify it in order to meet your requirements.


Greetings,
Svetlina
the Telerik team

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

[Mark]

Hi,

I think I am having a similar problem.  I am trying to load the radwindow as soon as a page opens on first load.  To do this I have a openWin JS function used to call radopen to open the radwindow.  I have tried 2 methods to call my JS function but I get the undefined method with both.  I the page load I have tried:

 

ScriptManager

.RegisterStartupScript(this, typeof(string), "OPEN_WINDOW_C", "openWin('QuoteCompare2.aspx',0);", true);

AND

InjectScript.Text =

"<script type='text/javascript'> Sys.Application.add_load(openWin('QuoteCompare2.aspx',0));</script>";


Inside my JS openWin function I also get undefined for the following:

var oManager = GetRadWindowManager();

alert(oManager);

Can anyone help.

Thanks in advance.

[Mark]

I have fixed this with the following by including a timeout.  I was under the impression I shouldnt need to do this though and using the add_load should work!

ScriptManager

.RegisterStartupScript(this, typeof(string), "OPEN_WINDOW_C", @"window.setTimeout(""openWin('QuoteCompare2.aspx',1)"",500);", true);

[eugene petrov]

Hi Svetlina,

I had a similar problem and your "Sys.Application.add_load(ShowWindow);" suggestion helped me to resolve it. Thanks heaps!

[Matthias Heinrich]

Thx Svetlina and Eugene :)

The Timeout like Eugene describes is working for me, too!

[TuanTH]

Thanks for ideas, i fixed this bug

[Marin Bratanov]

Hello,

I'd just like to point out that this is not a bug, but the general way the frameworks is designed and should be used. As for previous posts regarding the need for timeout with the Sys.Application.add_load() method - it only takes the name of the function to be executed, not an entire function, more details and an example of using the approach can be found in this help article: http://www.telerik.com/help/aspnet-ajax/radwindow-troubleshooting-javascript-from-server-side.html.


Greetings,
Marin
the Telerik team