Hello Christian Surieux,
The reason for the problem is that your page does not have the correct doctype.
I suggest that you use the following doctype:
<%@ Page Language="C#" AutoEventWireup="False" CodeFile="Default2b.aspx.cs" Inherits="Default2b" Culture="auto" UICulture="auto" EnableViewState="false" %> |
<%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %> |
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" |
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
<html xmlns="http://www.w3.org/1999/xhtml"> |
<head id="Head1" runat="server"><title></title></head> |
<body id="Body1" runat="server"> |
<form id="Form1" runat="server"> |
<telerik:RadScriptManager ID="WTScriptManager" Runat="server" |
EnableScriptGlobalization="True" EnableTheming="True"> |
</telerik:RadScriptManager> |
<telerik:RadAjaxManager ID="AjaxManager1" runat="server"> |
</telerik:RadAjaxManager> |
<asp:PlaceHolder id="LayoutPlaceHolder" runat="server"></asp:PlaceHolder> |
</form> |
</body> |
|
This should help.
Regards,
Rosi
the Telerik team