Problem
When
RadAjaxManager control is used in a Sitefinity page, it is initialized too late in the page life cycle. Actually, AJAX Manager should be created in
OnInit.
Workaround
1. Declare RadAjaxManager in the master page and not in the user control:
.master
| <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server"></telerik:RadAjaxManager> |
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2. Get the "master" manager instance via GetCurrent method in the Page_Load method of the user control:
.ascx.cs
| RadAjaxManager manager = RadAjaxManager.GetCurrent(this.Page); |
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3. Add the AJAX settings programmatically:
.ascx.cs
| manager.AjaxSettings.AddAjaxSetting(this.RadGrid1, this.RadGrid1, this.RadAjaxLoadingPanel1); |
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