Cannot access a closed stream memorystream c#
WebOct 5, 2024 · Cannot access a closed stream. Here's the code: first method: Here it opens a file with File.Open method and then creates a memorystream object and it copies FileStream to MemoryStream. then sets Position to 0 (i set position to 0, because i was that in a solution, but not helping tho). Then it creates an object of class DocxConvert and call ... WebApr 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 …
Cannot access a closed stream memorystream c#
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WebApr 20, 2011 · First try to load the document from MemoryStream then close XmlTextWriter Do it like this: XmlDocument X= new XmlDocument () x.Load (MemoryStream) XmlTextWriter .Close () Posted 20-Apr-11 23:01pm Ankit Rajput Updated 20-Apr-11 23:02pm v2 Comments zsh64 21-Apr-11 5:35am If i do it Gives the following message … Web2 Answers. The stream was closed as soon as you exited the action method, or rather, the using ( var ms = new MemoryStream () ) { block. You don't need to dispose the …
WebMar 17, 2024 · Write it as: var _memStream = new MemoryStream (file.Contents); zipArchive.AddEntry (file.Filename, _memStream, true); It should use this overload. The true is so that it closes the Stream when not used. Probably it will auto-discover the length (I see that it is an optional value with 0 as default) WebAug 12, 2016 · 1 Answer. Sorted by: 5. You're disposing of the MemoryStream because you're using a using block. By the time you try to use the return value later in your code, it's unavailable. using (MemoryStream ms = new MemoryStream ()) { ImagenCopia.Compress (Bitmap.CompressFormat.Jpeg, 40, ms); return ms; } Remove the using statement:
WebDec 16, 2015 · If not, you may be able to work around the problem with the non-expandable memory stream by not creating the memory stream from a fixed array. Instead of new MemoryStream (fileData) you can use: using (var zipStream = new MemoryStream ()) { zipStream.Write (fileData, 0, fileData.Length); zipStream.Position = 0; // continue here } … WebThis is because the StreamReader closes of underlying stream automatized when be disposed about. The using statement does this automatically. However, the StreamWriter you're using is static trying to work on to stream (also, the using account for the writer is now test to dispose for the StreamWriter, which remains then trying till finish the ...
WebJun 26, 2012 · One simple approach is to get the byte array out of the closed MemoryStream and create another one: pdf.CreatePDF (ms) ms = new MemoryStream (ms.ToArray ()) Dim email As New EmailService email.Send (ms) Note that it's fine to call MemoryStream.ToArray on a closed / disposed instance of MemoryStream. It's even …
WebAug 4, 2024 · So I am getting a Stream back from an http call and if I just assign it to my return variable then I get an exception Cannot access a closed Stream in the calling function. Is this because of the Using? ... C# Cannot access a closed stream while copying GZipStream to MemoryStream. try we areWebOne simple approach is to get the byte array out of the closed MemoryStream and create another one: pdf.CreatePDF(ms) ms = new MemoryStream(ms.ToArray()) Dim email As … tryweare reviewsWebJul 6, 2013 · Here is my code: private FileStreamResult Export () { string name = "filename.txt"; MemoryStream stream = new MemoryStream (); using (StreamWriter writer = new StreamWriter (stream)) { StringBuilder sb = new StringBuilder (); sb.Append ("A text..."); writer.WriteLine (sb.ToString ()); } return File (stream, "text/plain", name); } phillips green solicitors limitedWebAfter serialization, you can retrieve the serialized JSON from the memory stream and do something with it. Note that you can modify the Formatting property to change the formatting of the JSON text as needed. More C# Questions. Register IAuthenticationManager with Simple Injector in C#; Why DateTime.Now needs to be thread-safe in C#? phillips green and murphyWebThis is because the StreamReader closes of underlying stream automatized when be disposed about. The using statement does this automatically. However, the StreamWriter … phillips green \u0026 murphyWebFeb 25, 2010 · The problem is that the stream is closed (via Dispose ()) at the end of the using block. You retain a reference to the closed stream. Instead, save the contents of the stream to your cache: _cache.Add (someId, stream.ToArray ()); When you call the PngBitmapDecoder constructor, you'll have to create a new MemoryStream to read from … phillips grocery store murder danaWebDec 2, 2015 · Cannot access a closed Stream. Here is my code: //Create a byte array that will eventually hold our final PDF Byte [] bytes; List myTables = getTables (); TableObject currentTable = new TableObject (); //Boilerplate iTextSharp setup here //Create a stream that we can write to, in this case a MemoryStream using (MemoryStream ms ... phillips grocery divison facility pa