RadEditor error with RadTab when using UpdatePanel on IE9

[VnDevil]

Hi Telerik,

I have two tabs, one tab displays some information and a tab to load RadEditor

When run the program I set SelectedIndex is Tab1, then press into Tab2 and press update button to write content of editor,
It's ok on Firefox or Chrome but it's doesn't work in IE9

You can see my sample project in download link below,
http://www.mediafire.com/?o73iqtm9vyoy1mw
Please check it for me,

Thanks

[Rumen]

Hi VnDevil,

All you need to do to fix this ASP.NET problem is to set UseSubmitBehavior="false" in the Update button declaration:

<asp:Button ID="btnUpdate" runat="server" UseSubmitBehavior="false" Text="Update" Height="30" Width="80" OnClick="btnUpadate_Click" />

Best regards,
Rumen
the Telerik team