Asyncfileupload Error Cannot Access A Closed File
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Httppostedfilebase Cannot Access A Closed File
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Cannot Access A Closed File Itextsharp
have an ASP.NET FileUpload control that works fine until I deploy it. Then it works fine unless the file is over ~55kb. I think this has something to do with the postbacks and that i have to put it in a session variable. Still, it works for small files. Is it maybe a limitation of how large a session variable can be? But it works when running from my requestlengthdiskthreshold IDE so not sure. System.ObjectDisposedException: Cannot access a closed file Thanks for any leads. asp.net file-upload share|improve this question asked Mar 5 '13 at 21:46 user1761600 10838 add a comment| 2 Answers 2 active oldest votes up vote 7 down vote This can be solved by giving DiskBufferSize in the web.config:
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of this site About Us Learn more about Stack Overflow the company Business Learn more about cannot access a closed stream. c# hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow http://stackoverflow.com/questions/15234776/cannot-access-a-closed-file is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Ajax AsyncFileUpload.FileBytes returns null up vote 0 down vote favorite 1 I have a file upload page with an AsyncFileUpload control. When the user browses to the file the upload http://stackoverflow.com/questions/2133752/ajax-asyncfileupload-filebytes-returns-null control pulls the file into memory. I then have an Upload button which fires the following code to save the file to a database. I am finding that if files are over about 500KB then the FileBytes property of the control simply returns null. This happens on my server but when running the app locally it runs through fine. I'm not handling the OnUploadCompleted event as I need to user to complete further information before committing the file to database. I have this in my web.config: httpRuntime maxRequestLength="10000"/> private void UploadDocument(int mietID) { if (Page.IsValid) { if (mietID > 0) { if (File1.HasFile && File1.FileBytes != null) { string[] docFormats = MIETPConfig.Current.SupportedDocumentFormats; for (short i = 0; i < docFormats.Length; i++) docFormats[i] = docFormats[i].ToUpper(); if (docFormats.Contains(Path.GetExtension(File1.FileName).ToUpper())) { try { byte[] uploadedBytes = File1.FileBytes; DocumentController.CreateDocument(txtLinkText.Text, Path.GetFileName(File1.PostedFile.FileName), uploadedBytes, mietID, (User)Session["User"]); MietpClientScripts.CloseWindow(Page); } catch (Exception) { lblUploadStatus.Text = "There was an error saving the document to the data
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