Response.Write and UpdatePanel

Question

I generate a vcard that I send to the client using the following code snippet:

Response.AddHeader(\"Content-Disposition\", string.Format(\"attachment; filena         


        

Answer 1

Response.Write will not work under Asynchronous Events. My suggestion is to remove the Update Panel in case it is specifically being used for VCard point of view only.

Alternatively - Place a control inside the Update Panel and initialize it's value under asynchronous event. Now it will work.