title: ASP.NET FileUpload control's Change Event
body: <p>I am having trouble using FileUpload control, I want to validate image length, size, format etc. and wanted to display it on ImageControl when successfully validated. This I did through another button click's event but I wanted this to be done on client side's 'OK/OPEN' and 'CANCEL' buttons when 'Browse File' window opens. Pls help.</p>