RadComboBox Post Back on Default page

[Herve]

Hi,

I have an issue with the RadComboBox post back only on the Default page.

Autopostback is enabled and my code behind works fine if my url contains the file name & extension (MySite.com/Default.aspx or /directory/Default.aspx) but not if I link only the directory (MySite.com or /directory/).

I'm using Visual Studio 2012 and .net 4.5 (VB)

My code is icluded in a Master Page
--------------------
<telerik:RadComboBox ID="RcbLangue" OnSelectedIndexChanged="RcbLangue_SelectedIndexChanged" AutoPostBack="True" runat="server" DataSourceID="SdsLangues" DataTextField="Name" DataValueField="LangId"></telerik:RadComboBox>
--------------------
Protected Sub RcbLangue_SelectedIndexChanged(sender As Object, e As RadComboBoxSelectedIndexChangedEventArgs)
        Session("LangId") = RcbLangue.SelectedValue
        Session("LangName") = RcbLangue.SelectedItem.Text 
End Sub
--------------------

Is it a .net known issue, does anyone else has this problem ?

Thanks for your support,


Herve

[Dimitar Terziev]

Hello Herve,

The reason for the experienced problem is indeed a know issue related to the usage of RadCompression. It's mentioned in the following help article here under the Known issues section:
When RadCompression is enabled and you are using .NET 4.0, event handlers might not be raised in a default document in IIS 7 or IIS 7.5 Integrated Mode.

Please try the solution suggested in the aforementioned help article.

Greetings,
Dimitar Terziev
the Telerik team