Cannot access a closed file filestream c#

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WebMar 22, 2024 · That been said, if the file was not closed, you would merely have a different exception. During. PdfReader pdfReader = new PdfReader (pdfStream); the stream is read to the end, so here. var image = iTextSharp.text.Image.GetInstance (pdfStream); there would be nothing to read from the stream. And even if you did reset the stream to the … WebDec 22, 2011 · CodeProject, 20 Bay Street, 11th Floor Toronto, Ontario, Canada M5J 2N8 +1 (416) 849-8900

c# - Cannot read XLSX file - Exception with Stream "Cannot access ...

WebC# , Issue with writing HTTP content into FileStream, Cannot access a closed file 1 .NET Core API saving image upload asynchronously with ImageSharp, MemoryStream and FileStream /// Method that gets called by ManagedResource.WriteData() in project CodeAnalysis during code /// emitting to get the data for an embedded resource file. flying start health visiting

c# - HttpContent.CopyToAsync for large files - Stack Overflow

WebNov 1, 2011 · Im using Taglib to change some tags in memory, what Im trying to do is read a file using a stream, copy the stream to a memoryStream make some changes i.e. (file.Tag.Comment = "my New comments"), and then use the lastest stream for download. WebJun 22, 2015 · The issue boils down to the fact that you're trying to use an MVC component with a stream that won't exist outside the lifetime of your action. The controller infrastructure will ensure the stream is closed automatically for you so you shouldn't dispose of the stream. Michael Taylor http://blogs.msmvps.com/p3net WebJul 6, 2024 · The ending curly brace of your using statement closes the file stream: using (fileStream) { Attachment attachment = new Attachment (fileStream, filePath); mailMessage.Attachments.Add (attachment); } // <-- file stream is closed here However, the stream is read at the time of the stmpClient.Send (mailMessage), where it is not open … green motion car and van rental limited

c# - cannot access closed file itextsharp - Stack Overflow

How to resolve C# IOException: The process cannot access the file ...

WebC# : Cannot access a closed Stream while creating a downloadable text file in ASP MVC 3To Access My Live Chat Page, On Google, Search for "hows tech develope... WebTwo thoughts: Regarding FileShare statement that additional permissions might still be needed - that's likely in reference tha while your program says it can handle someone … flying start guidance walesWebThis happens because the StreamReader takes over 'ownership' of the stream. In other words, it makes itself responsible for closing the source stream. As soon as your program calls Dispose or Close (leaving the using statement scope in your case) then it will dispose the source stream as well. Calling fs.Dispose() in your case. So the file stream is dead … green motion car hire costa rica

"WebClose the file: If you are the one who opened the file, you can close it to release the lock. Make sure that you call the Close method on the file object after you finish reading or writing it. using (var file = new FileStream("filename", FileMode.Open)) { // read or write the file here file.Close(); // release the lock } " - Cannot access a closed file filestream c#

Cannot access a closed file filestream c#

IFormFile.OpenReadStream C# (CSharp) Code Examples

WebJun 19, 2024 · The issue is, either the client needs to close the stream, or the PushStreamContent needs to close it when all bytes have been written, but with the using block, you're closing it immediately when you send. Share Improve this answer Follow answered Jun 19, 2024 at 10:36 Clay 4,979 1 30 45 Add a comment 0 Removing the … WebAug 17, 2024 · I looked to see where the stream is being closed and its at the closing tag for the using, so i tried moving the return above the tag but this did not work either C#: private MemoryStream BuildRootZip() { MemoryStream ReturnMemoryStream = new MemoryStream(); using (ReturnMemoryStream) { } }

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WebHere's an example of the problem of a memory stream getting closed despite your desire to continue using it: /// WebOct 16, 2024 · You are trying to read/write to a stream that is already closed / disposed. private FileResult createZipFromXmlImport (ImportBase import, string fileName) { var …

WebJan 8, 2024 · // Check if the file is valid. if (!Check (file.FileName, file.ContentType)) return BadRequest ("Fil ikke gyldig"); var medie = new Medie { Name = file.FileName.Trim ('\"'), ParentId = _imageService.TempFolderGuid, ContentLength = file.Length, Content = memoryStream.ToArray () }; try { var imageId = await … WebJan 22, 2024 · Or you could just reopen the filestream again, or maybe return a File Instance from your method that you could reopen the stream with Now that you shared your full code, it seems to me that your Write call is disposing the FileStream or closing it, you can try reopen the filestream just after you do the Write () call. Share Improve this answer

WebMar 22, 2012 · both of the followiong lines of code are separate objects trying to access the same file: FileStream f1=new FileStream("c:\\file.xml",FileMode.Open); StreamReader sr=new StreamReader("c:\\file.xml"); so each is attempting to access teh file indivodually, whereas changing your code to my connection cases sr to access the file Through f1

WebJun 26, 2012 · The stream could have been closed outside of this code and this exception would still occur? Yes. For example - This can happen if you wrap a stream within another stream, and dispose of the "wrapper" stream. Many implementations dispose of the stream they are wrapping.

WebApr 26, 2024 · Code that I tried to end the Stream after returning FileStreamResult, I am aware that it can not work, because after return File (stream, contentType, fileName) it immediately jumps to the block finally and the stream closes, so the download does not start because the stream is closed c# asp.net-core orchardcore Share Improve this question … flying start nswnmaWebC# (CSharp) IFormFile.OpenReadStream - 60 examples found. These are the top rated real world C# (CSharp) examples of IFormFile.OpenReadStream extracted from open source projects. You can rate examples to help us improve the quality of examples. green motion car hire glasgowWebApr 13, 2015 · You might be closing the stream before doing anything with it. What happens when you run this: using (fileStream = new FileStream (path, FileMode.Append, FileAccess.Write)) { fileWriter = new StreamWriter (fileStream); fileWriter.AutoFlush = … green motion car hire complaintsWebAug 22, 2011 · the exception happens because AddEntry uses the FileStram and after it is finished with the FileStream it closes it automatically.. so it is closed during Save after the first file... when there is one file it is ok - but your code adds the same FileStream fs for every file... not sure that this is what you really want... I think you would want to open … green motion car hire kefaloniaWebApr 22, 2024 · In my C# api I am returning a pdf file in a FileStreamResult, works great. Generally I wrap streams in using, however this code fails with Cannot access a closed Stream. using (MemoryStream stream = new MemoryStream (byteArray)) { fileStreamResult = new FileStreamResult (stream, "application/pdf"); } return (ActionResult)fileStreamResult; flying start in my areaWebJun 14, 2024 · 2 Answers Sorted by: 4 Your running into a race condition due to your usage of async void. Due to the void return type, the server code running your app can not know when your method finishes and disposes the request immediately. Use Task as the return type of your UploadFile method. flying start health visitor roleWebThis is how I am reading the file: public string addDocument (HttpPostedFile file, string typeOfDocument, int UserID, string documentID = "", int uploadedBy = 0) { Stream stream; BinaryReader bReader; byte [] bytes; stream = file.InputStream; bReader = new BinaryReader (stream); bytes = bReader.ReadBytes ( (int)stream.Length); } flying start health visitors