cannot refresh 2 radgrids on same page

[Steven]

hi,

I have a project with a page that contains 2 radgrids.
in code behind I open a radwindow that does an update on a row in one grid, and changes the status, so that it appears in the other grid.

this is the code for opening the window

RadWindow ConfirmWindow = new RadWindow();
<br>ConfirmWindow.NavigateUrl = "HolidayApproveDecline.aspx?Type=" + ((Byte)Type).ToString() + "&IDs=" + IDBuilder.ToString();<br>ConfirmWindow.Width = 450;
<br>            ConfirmWindow.Height = 430;
<br>            ConfirmWindow.ID = "wndUserAddHoliday";
<br>            ConfirmWindow.VisibleOnPageLoad = true;
<br>            ConfirmWindow.OnClientClose = "RefreshGrid";
<br>            ConfirmWindow.VisibleStatusbar = false;
<br>            ConfirmWindow.IconUrl = "../Images/address_book.png";
<br>            ConfirmWindow.Title = "Bevestigen";
<br>            WindowBehaviors Behaviors = new WindowBehaviors();
<br>            Behaviors |= WindowBehaviors.Close;
<br>            ConfirmWindow.Behaviors = Behaviors;<br>
<br>            ConfirmWindow.Modal = true;<br>            RadWindowManager MasterWindowManager = (RadWindowManager)this.Master.FindControl("MasterWindowManager");<br>            MasterWindowManager.Windows.Add(ConfirmWindow);

Now, upon returning he fires the clientside Refresh function which contains following code:

  <telerik:RadCodeBlock ID="Block2" runat="server">
        <script type="text/javascript">
            function RefreshGrid() {

                var grdGeneralOverview = $find("<%= grdGeneralOverview.ClientID %>").get_masterTableView();
                grdGeneralOverview.rebind();

                var grdApproveDecline = $find("<%= grdApproveDecline.ClientID %>").get_masterTableView();
                grdApproveDecline.rebind();
      </script>
    </telerik:RadCodeBlock>

The OnNeedDatasource functions for both grids in code behind are fired, and the datasources contain the updated data for both grids.

However, and this is the catch, on the screen only the second grid is updated (grdApproveDecline 
)
if I switch the 2 rebinds around, the other gets updated on screen.

Does anyone know why this happens?

[Eyup]

Hi Steven,

Please note that the rebind() method raises a postback to the server in order to active the command. Since it is not possible to call multiple postback operations simultaneously, you will need to Rebind() the grids on server-side.

To achieve that, you can use the fireCommand method of the first grid and handle its ItemCommand event handler on the code-behind. There you can check for the appropriate command name and Rebind() both of the grids:
http://www.telerik.com/help/aspnet-ajax/grid-gridtableview-firecommand.html

Alternatively, you can use RadAjaxManager and its ajaxRequest method:
http://demos.telerik.com/aspnet-ajax/controls/examples/integration/gridandwindow/defaultcs.aspx?product=window

Hope this helps.

Regards,
Eyup
Telerik