FileUpload control inside an UpdatePanel without refreshing the whole page?

Question

According to Microsoft the FileUpload control is not compatible with an AJAX UpdatePanel.

I am aware that a PostBackTrigger can be added to the submit button of the

Answer 1

Add this to your button control:

OnClientClick="javascript:document.forms[0].encoding = 'multipart/form-data';"

-or-

Make your page Form tag look like: