Hi,

I want to set the Masterpage property in Global.asax.

This is what I have done but I get a NullReferenceException on the first line. Any ideas how to do this?

protected void Application_PreSendRequestContent(Object sender, EventArgs e)
{
    System.Web.UI.Page page = System.Web.HttpContext.Current.Handler as System.Web.UI.Page;               

    if (Session["lang"] == "eng")
    {
        page.MasterPageFile = "SideMasterPageEng.master";
    }
}