Cannot access a closed stream memorystream c#

Author: jptf

August undefined, 2024

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 ... WebAfter 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#?

Attach a file from MemoryStream to a MailMessage in C#

WebThis is because the StreamReader closes of underlying stream automatized when be disposed about. The using statement does this automatically. However, the StreamWriter … 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: fly cph miami

c# - Cannot access a closed Stream? How to prevent it? - Stack Overflow

WebJul 17, 2015 · you do not need the memory stream try something like string excelLocation = Path.Combine (taskpath, "Test_Output.xlsx"); FileStream sw = File.Create (excelLocation); wb.Write (sw); sw.Close (); Share Follow answered May 14, 2024 at 17:56 Sarah Akram 1 1 Add a comment Your Answer Post Your Answer WebJul 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= … WebDec 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 fly cph til manila

c# - Cannot access a closed stream when passing stream to …

Cannot access a closed stream memorystream c#

c# - MemoryStream - Cannot access a closed Stream - Stack …

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 … 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", …

Did you know?

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 … WebDec 28, 2024 · When I debug the code it runs fine, but when I run it on the Test server, I get the following error: System.ObjectDisposedException: Cannot access a closed Stream. at System.IO.__Error.StreamIsClosed () at System.IO.MemoryStream.Write (Byte [] buffer, Int32 offset, Int32 count)

WebNov 14, 2024 · Same result...Cannot access a closed Stream on this line: await graphClient.Me.Drive.Items ["item-id"].ItemWithPath ("NewDocument-2.pdf").Content.Request ().PutAsync (ms); The PutAsync is expecting a Stream as well So when I do this: 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.

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 … 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 …

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 ...

WebMar 7, 2014 · Exception Details: System.ObjectDisposedException: Cannot access a closed Stream. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: … flycraftangling.comWebJul 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); } greenhouse technologies east londonWebOne 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 … fly craft 2.0Web2 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 … fly cph wienWebApr 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... fly cph vancouverWebDec 8, 2024 · 1 Answer Sorted by: 2 seems you are disposing the StreamWriter sw, which in turn will dispose the memory stream passed to it try using this public static Stream GenerateStreamFromString (string s) { var ms = new MemoryStream (Encoding.Default.GetBytes (s)); return ms; } Share Improve this answer Follow … greenhouse technician resumeWebDec 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 } … fly craft angler