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Sending radgrid selected values from radwindow to parent

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Claude
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Claude asked on 20 Oct 2010, 05:23 PM
Greetings,

Im trying to send multiple selected values from a radgrid, which is on a radwindow (acting as a dialogue). I can successfully send values that are in textboxes and comboboxes but the problem is when the code reaches a point where its supposed to send values from the radgrid. I get the NULL OBJECT ERROR. I have tried using Sys.application.add_load to noavail.

This is the function that im using to retrieve the selected values on the radgrid.
function returnToParent() {
             
               //create the argument that will be returned to the parent page
               var oArg = new Object();
               //THE NULL OBJECT ERROR IS ON THIS LINE
               var gridView = $find("<%= RdGRoles.ClientID %>").get_masterTableView();
                               
               oArg.selGroup = gridView.get_selectedItems();
               //get a reference to the current RadWindow
               var oWnd = GetRadWindow();
               oWnd.close(oArg);
               
           }

Im calling this function when a user clicks OK button:

Protected Sub btnOk_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnOk.Click
       ClientScript.RegisterStartupScript(Page.GetType(), "mykey", "returnToParent();", True)
   End Sub

Thanks in advance

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Cori
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answered on 20 Oct 2010, 06:24 PM
Hello Claude,

I'm assuming that the content inside your RadWindow is from another page, meaning your not using the ContentTemplate. If so, I think you need to change your returnToParent method to something like this:

function returnToParent() { 
             //get a reference to the current RadWindow 
               var oWnd = GetRadWindow(); 
  
               //create the argument that will be returned to the parent page 
               var oArg = new Object(); 
               //THE NULL OBJECT ERROR IS ON THIS LINE 
               var gridView = $find("<%= RdGRoles.ClientID %>",oWnd.BrowserWindow).get_masterTableView(); 
                                 
               oArg.selGroup = gridView.get_selectedItems(); 
                 
               oWnd.close(oArg); 
                 
           }

It uses the optional parameter of the $find method to search for the grid in the parent window. Before it was looking inside of the RadWindow, where the control doesn't exist.

I hope that helps.

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Claude
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answered on 21 Oct 2010, 09:15 AM
Hello Cori,

Thanks for the prompt reply. The radgrid is on the radwindow and im generating its data from the radwindow. All I need to do is transfer its selected values to another radgrid which is on the parent page. I do manage with other controls but the radgrid is giving the 'NULL' error. More like its not yet created.

Regards,
Claude
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Cori
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answered on 21 Oct 2010, 01:10 PM
Alright, in that case have you tried writing it like this:

Sys.Application.add_load(returnToParent);

I know you wrote in your first post that you tried this, but I noticed you wrote Application in all lowercase letters.

Let me know if that works.
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Claude
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answered on 21 Oct 2010, 01:32 PM
Hie Cori

The Sys.Application.add_load(returnToParent); does find the control but the radwindow loads and closes because of the oWnd.close(oArg). I dont understand why it cant find only the radgrid but can access the other controls. I can send a sample project

Thanks in advance

regards
Claudius
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Georgi Tunev
Telerik team
answered on 22 Oct 2010, 12:37 PM
Hello Claudius,

Please open a support ticket and send us the sample project so we can examine in more details your exact setup.

Sincerely yours,
Georgi Tunev
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Claude
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Claude
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Georgi Tunev
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