Download Files with Ajaxified Control
If you want to invoke download for a file from an AJAX-enabled control (either placed in RadAjaxPanelor ajaxified by RadAjaxManager ), you cannot use the normal response.WriteFile function.
Response.WriteFile("~/Your_File");
Response.WriteFile("~/Your_File")
Why? Because the XmlHttpRequest cannot handle this.
Instead you can use the ResponseScripts collection of the RadAjax controls to change the location header and download the file:
RadAjaxPanel1.ResponseScripts.Add(String.Format(@"window.location.href = ""{0}"";", "http://yoursite.com/Your_File"));
RadAjaxPanel1.ResponseScripts.Add(String.Format("window.location.href = ""{0}"";", "http://yoursite.com/Your_File"))
The ResponseScripts collection will be executed after ajax request completes.