2024 Cannot access a closed stream memorystream c#

Cannot access a closed stream memorystream c#

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WebDec 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 … 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 …

c# - getting an error like Cannot access a closed Stream while …

WebMay 19, 2014 · When client.Send tries to send it will obviously read Attachment which points to a MemoryStream which has be already closed by StreamWriter. You can verify this by inspecting ms.CanRead It will return false. Accessing closed stream will throw exception, that's what you're experiencing. WebThe StreamWriter and underlying stream should not be disposed until after the message has been sent (to avoid ObjectDisposedException: Cannot access a closed Stream). Since I couldn't find confirmation of this anywhere, I tested if disposing of the MailMessage and/or the Attachment object would dispose of the stream loaded into them as I ... chiropractor in zeeland mi

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

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 … 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. graphicsgale mac

Cannot access a closed Stream when returning FileStreamResult from C# ...

MemoryStream - Cannot access a closed Stream

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: 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) chiropractor in wyoming miWebAfter 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#? graphicsgale english

"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 } … " - Cannot access a closed stream memorystream c#

Cannot access a closed stream memorystream c#

c# - Cannot Access Closed Stream - Stack Overflow

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: … WebYou're creating the MemoryStream in a using block. When the block goes out of scope the Dispose method is being called. Just remove the using so that it isn't closed:

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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 ... 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 …

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: 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 ...

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", … 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...

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 …

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 graphicsgale number of framesWebThe StreamWriter and underlying stream should not be disposed until after the message has been sent (to avoid ObjectDisposedException: Cannot access a closed Stream). … graphicsgale keyboard shortcutsWebMar 24, 2024 · create a new xlsx and write to memory stream · Issue #171 · dotnetcore/NPOI · GitHub. Notifications. Fork. chiropractor in yuba city caWebJun 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 … graphicsgale mirror editingWebDec 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 ... chiropractor in zephyrhills flWebOne 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 chiropractor in yarmouth nsWebFeb 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 … graphicsgale onion skin