RadAjax for ASP.NET AJAX

If you want to invoke download for a file from ajaxified control (either placed in RadAjaxPanel or ajaxified by RadAjaxManager), you cannot use the normal

• C#
• VB.NET

CopyC#

Response.WriteFile("~/Your_File");

CopyVB.NET

Response.WriteFile("~/Your_File")

because the xmlhttp request cannot handle this.

Instead you can use the ResponseScripts collection of the RadAjax controls to change the location header and download the file:

• C#
• VB.NET

CopyC#

RadAjaxPanel1.ResponseScripts.Add(String.Format(@"window.location.href = ""{0}"";", "http://yoursite.com/Your_File"));

CopyVB.NET

RadAjaxPanel1.ResponseScripts.Add(String.Format("window.location.href = ""{0}"";", "http://yoursite.com/Your_File"))

The ResponseScripts collection will be executed after ajax request completes.