Here is my test page:
<
html
xmlns
=
"http://www.w3.org/1999/xhtml"
>
<
head
runat
=
"server"
>
<
title
>Now</
title
>
<
script
runat
=
server
type
=
"text/C#"
>
public void Submit_Click(object sender,System.EventArgs eventArgs)
{
this.Title = System.DateTime.Now.ToString();
}
</
script
>
</
head
>
<
body
>
<
form
runat
=
"server"
>
<
Telerik:RadScriptManager
runat
=
server
/>
<
Telerik:RadAjaxManager
runat
=
server
EnablePageHeadUpdate
=
false
>
<
AjaxSettings
>
<
Telerik:AjaxSetting
AjaxControlID
=
Submit
>
<
UpdatedControls
>
<
Telerik:AjaxUpdatedControl
ControlID
=
Submit
/>
</
UpdatedControls
>
</
Telerik:AjaxSetting
>
</
AjaxSettings
>
</
Telerik:RadAjaxManager
>
<
asp:Button
runat
=
server
ID
=
Submit
OnClick
=
Submit_Click
/>
</
form
>
</
body
>
</
html
>
Even if the "EnablePageHeadUpdate" is set to false, the title of the page still change after clicking the button.