Using AjaxLoading Panel

[Keith]

Hello;

I am trying to use the AjaxLoading Panel when I use a calendar control event which when the date is selected, opens a new window to display the results of the query based on the date selected and leaves the parent window open in the background. I want the loading to be displayed on the parent window until the new window is rendered.

Thanks,
Keith 

[Keith]

Additional information.

When trying to use the following code:

ASPX:

<asp:ScriptManager ID="ScriptManager" runat="server" /> <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" OnAjaxRequest="RadAjaxManager1_AjaxRequest">     <AjaxSettings>         <telerik:AjaxSetting AjaxControlID="RadAjaxManager1">             <UpdatedControls>                 <telerik:AjaxUpdatedControl ControlID="Panel1" LoadingPanelID="RadAjaxLoadingPanel1" />             </UpdatedControls>         </telerik:AjaxSetting>     </AjaxSettings> </telerik:RadAjaxManager> <asp:Panel ID="Panel1" runat="server">     <asp:Panel ID="Panel2" Visible="false" runat="server">      My content:    </asp:Panel> </asp:Panel> <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Height="75px" Width="75px" Transparency="50">     <img alt="Loading..." src='<%= RadAjaxLoadingPanel.GetWebResourceUrl(Page, "Telerik.Web.UI.Skins.Default.Ajax.loading.gif") %>' originalAttribute="src" originalPath="<%= RadAjaxLoadingPanel.GetWebResourceUrl(Page, "Telerik.Web.UI.Skins.Default.Ajax.loading.gif") %>" originalAttribute="src" originalPath="<%= RadAjaxLoadingPanel.GetWebResourceUrl(Page, "Telerik.Web.UI.Skins.Default.Ajax.loading.gif") %>" originalAttribute="src" originalPath="<%= RadAjaxLoadingPanel.GetWebResourceUrl(Page, "Telerik.Web.UI.Skins.Default.Ajax.loading.gif") %>" originalAttribute="src" originalPath="<%= RadAjaxLoadingPanel.GetWebResourceUrl(Page, "Telerik.Web.UI.Skins.Default.Ajax.loading.gif") %>" style="border:0;" /> </telerik:RadAjaxLoadingPanel>

 

[C#]

protected void RadAjaxManager1_AjaxRequest(object sender, Telerik.WebC.UI.AjaxRequestEventArgs e)     {         if (e.Argument == "InitialPageLoad")         {             //simulate longer page load             System.Threading.Thread.Sleep(2000);             Panel2.Visible = true;         }     }

I get the following error:

Microsoft JScript runtime error: 'null' is null or not an object

[Konstantin Petkov]

Hello Keith,

This is a JavaScript error so can you share the JavaScript which triggers the AJAX request? Do you get the RadAjaxManager client object through the $find() ASP.NET AJAX function? Please review the RadAjax client-side API described here.

Kind regards,
Konstantin Petkov
the Telerik team

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