Cannot access a closed stream memorystream c#

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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 ... 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", …

Attach a file from MemoryStream to a MailMessage in C#

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#? 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 ... somerset direct

c# - Not able to return CSV file in MVC action. Not Cannot access …

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 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. 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 … somerset daily american local news

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

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

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: 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: small carts \u0026 wagonsWebMar 24, 2024 · create a new xlsx and write to memory stream · Issue #171 · dotnetcore/NPOI · GitHub. Notifications. Fork. small carts poki

"WebDec 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 ... " - Cannot access a closed stream memorystream c#

Cannot access a closed stream memorystream c#

MemoryStream - Cannot access a closed Stream

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: … 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:

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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...

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 … WebThe StreamWriter and underlying stream should not be disposed until after the message has been sent (to avoid ObjectDisposedException: Cannot access a closed Stream). …

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 } … WebJul 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); }

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...

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. small cart wheeled several feetWebJun 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 … small carts for kitchens on wheelsWebApr 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 … small carts for yard workWebMar 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) small car used for short journeys crosswordWebJul 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= … small car tracking devicesWebThis is because the StreamReader closes of underlying stream automatized when be disposed about. The using statement does this automatically. However, the StreamWriter … small cart tableWeb2 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 … somerset dough sheeter