Cannot access a closed stream memorystream c#
WebOne 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 … WebMar 24, 2024 · create a new xlsx and write to memory stream · Issue #171 · dotnetcore/NPOI · GitHub. Notifications. Fork.
Cannot access a closed stream memorystream c#
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WebDec 30, 2024 · Add a comment 1 Answer Sorted by: 2 You're returning mem from inside your using at which point it is disposed. The "mem" variable inside this File () goes out of scope and is disposed as soon as you return it. return File (mem, "application/vnd.openxmlformats-officedocument.wordprocessingml.document", … 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 12, 2024 · C# : Cannot access a closed Stream of a memoryStream, how to reopen?To Access My Live Chat Page, On Google, Search for "hows tech developer connect"As promis... 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:
WebFeb 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 … WebThe StreamWriter and underlying stream should not be disposed until after the message has been sent (to avoid ObjectDisposedException: Cannot access a closed Stream). …
WebJun 26, 2012 · 7. So I will make my comment an answer: Yes, a stream could just as well be closed from outside your code, so make sure you check for a System.ObjectDisposedException. There are several occasions this could happen: imagine for example a stream associated with a network connection and the connection is …
WebJan 5, 2015 · 3. Your problem is in: Stream s = fs; The fs filestream is closed in your Main method (using statement disposes the filestream). To fix this you should open a new filestream to read from the file: Stream s = new FileStream ("PCWorld\\level.dat", FileMode.Read); Share. madrid city break things to doWebJul 20, 2024 · Memory stream is always closed ' cannot access a closed stream; var stream = new MemoryStream (); workbook.SaveAs (stream); however it trips up every single time throwing this exception: ReadTimeout = 'stream.ReadTimeout' threw an exception of type 'System.InvalidOperationException'. writeTimeOut= … madrid city centreWebThis is because the StreamReader closes of underlying stream automatized when be disposed about. The using statement does this automatically. However, the StreamWriter … kitchen stores in naperville ilWebAfter 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#? madrid city globales acis \u0026 galatea hotelWebOne 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 documented: Note madrid city breaks 2023WebDec 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 ... madrid coding education for childrenWebDec 31, 2016 · If it was created from a Stream it will access that original stream during the save operation. So the exception is not due to your memorystream you supplied in the save method, it is the original stream that is the culprit. Make sure you keep that stream available until all operations you want to do on the Workbook are completed. Share Follow kitchen stores in nh