Hallo,
Ich baue gerade in C# einen Downloadmanager. Nun habe ich das Problem das wenn ich zwei Threads die downloaden Parallel starten will die Exception:
{"Der Stream unterstützt keine gleichzeitigen E/A-Lese- oder Schreibvorgänge."} auslöst

Code der Downloadmethode:

Code :

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public static void DownloadF(object startPoint, string Url, string Path, DataGridViewProgressCell prgDownload, DataGridView view)         {             try             {                 // Put the object argument into an int variable                 int startPointInt = Convert.ToInt32(startPoint);                 // Create a request to the file we are downloading                 webRequest = (HttpWebRequest)WebRequest.Create(Url);                 // Set the starting point of the request                 webRequest.AddRange(startPointInt);                   // Set default authentication for retrieving the file                 webRequest.Credentials = CredentialCache.DefaultCredentials;                 // Retrieve the response from the server                     webResponse = (HttpWebResponse)webRequest.GetResponse();                 // Ask the server for the file size and store it                 Int64 fileSize = webResponse.ContentLength;                   // Open the URL for download                 strResponse = webResponse.GetResponseStream();                   // Create a new file stream where we will be saving the data (local drive)                 if (startPointInt == 0)                 {                     strLocal = new FileStream(Path, FileMode.Create, FileAccess.Write, FileShare.None);                 }                 else                 {                     strLocal = new FileStream(Path, FileMode.Append, FileAccess.Write, FileShare.None);                 }                   // It will store the current number of bytes we retrieved from the server                 int bytesSize = 0;                 // A buffer for storing and writing the data retrieved from the server                 byte[] downBuffer = new byte[2048];                   // Loop through the buffer until the buffer is empty                 while ((bytesSize = strResponse.Read(downBuffer, 0, downBuffer.Length)) > 0) //HIER LÖST DER FEHLER AUS                 {                     // Write the data from the buffer to the local hard drive                     strLocal.Write(downBuffer, 0, bytesSize);                     // Invoke the method that updates the form's label and progress bar                     view.Invoke(new UpdateProgessCallback(UpdateProgress), new object[] { strLocal.Length, fileSize + startPointInt,prgDownload });                       if (goPause == true)                     {                         break;                     }                 }             }             finally             {                 // When the above code has ended, close the streams                 strResponse.Close();                 strLocal.Close();                 view.Invoke(new UpdateStatusCallback(UpdateStatus), new object[] {Status.DOWNLOADED,prgDownload,view });             }

Ich starte die Methode, dann in verschiedenen Threads, und dann wieder wird die Exception geschmissen. Weiß zufällig jemand wie ich das umgehen kann?

Versuch mal FileShare.None durch FileShare.Write zu ersetzen.

Leider gleiches Verhalten

An welcher Stelle genau wird welche Exception geschmissen?

Habs gescreent

Problem gelöst ich depp hab den Filestream usw ja ausserhalb der STATISCHEN METHODE und STATISCH deklariert....