Can't create report viewer properly in tabcontrol

[Craig]

I have an AjaxControlToolkit TabContainer. When I create a tabpanel dynamically and add a report viewer in it, the report doesn't display properly and when I assign a report to the viewer, there's an exception. See attached sample project.

[Vladimir]

Hello,

Unfortunately, WebViewer does not support this scenario. You can try to use the alternative display mode of the viewer without using AJAX:
reportViewer.RenderMode = StiRenderMode.Standard;

Thank you.