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.NET Forum / ASP.NET / General / June 2007FileUpload PostedFile after Postback question
My environment is ASP.NET 2.0, C# and AJAX. Is there a way to retain the Postedfile in the FileUpload control after Postback? I have this application I've inherited were the User chooses a file then clicks the "save" button, the program proceeds to edit the file on the server and if it detects an error displays an error message. At this point the filename is lost from the FileUpload input field. Sal P. It is 'by design', for security reasons. The idea is that users should know and explicitly select a file for upload. Hence cannot be retained across postbacks. > My environment is ASP.NET 2.0, C# and AJAX. > [quoted text clipped - 6 lines] > > Sal P. Actually the FileUpload retains its state just fine after postback...it only gets null'ed when dropped into an AJAX panel, when the panel is removed it retains its state again even after postback...so I have doubts that it is a question of security. > It is 'by design', for security reasons. The idea is that users should know > and explicitly select a file for upload. Hence cannot be retained across [quoted text clipped - 13 lines] > > - Show quoted text - Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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