File upload control always null when i used update panel

Hello!!

When i am uploading a file by file upload control it gives always hashfile false.

my file upload control and upload button enclosed in update panel.

when i remove update panel it works correctly.

Hi Vinay!

use the following link

http://codeasp.net/blogs/vijjendra/microsoft.net/76/fileupload-inside-the-ajax-updatepanel

Hi,

The FileUpload control is designed to be used only in postback scenarios and not in asynchronous postback scenarios during partial-page rendering. When you use a FileUpload control inside an UpdatePanel control, the file must be uploaded by using a control that is a PostBackTrigger object for the panel. Despite of this there are several solutions that implement ajax update panel.

http://en.fileuploadajax.subgurim.net/

http://aspalliance.com/1442_Building_AJAX_Enabled_File_Uploading_System_with_Progress_Bar_Using_ASPNET_20

http://www.codeproject.com/KB/aspnet/AJAXUpload.aspx

Good luck

Another suggesstion would be

Add the FileUpload1 to Session like

Session["myFileUpload"] = FileUpload1

then get it back in any page you want to:

FileUpload flUp = Session["myFileUpload"] as FileUpload