temporary file in C#

[kaminem]

Hi All, I was just looking through MSDN and got a shock in that there is no such thing as a temporary file .. (only a memorystream) I need someting like the C++ tmpfile() ... I need to save some to a temp file as I have a third-party plugin that can only read an XML file if I specify a filename, therefore I need a temp file on the disk ... Is there still a way to do this ? Thanks kort

[Vasudevan Deepak Kumar]

Check this out http://www.developerfusion.co.uk/show/3913/[^] Would this address your requirement?

Vasudevan Deepak Kumar Personal Homepage Tech Gossips

[Pete OHanlon]

I find that the following code can be helpful. This class creates a temporary file that you can use, which is removed once you dispose the instantiating class. ; /// <summary> /// Create a temporary file. The file will be removed as soon as /// the instance of this class is disposed. /// </summary> public class TempFile : IDisposable { private string _fileName; private bool disposed = false; /// <summary> /// Instantiate a new instance of <see cref="TempFile"/>. /// </summary> public TempFile() { _fileName = Path.GetTempFileName(); } /// <summary> /// Get the temporary file name. /// </summary> public string FileName { get { return _fileName; } } #region IDisposable Members /// <summary> /// Dispose of the temporary file. /// </summary> public void Dispose() { Dispose(true); } protected void Dispose(bool dispose) { if (dispose && !disposed) { if (File.Exists(_fileName)) { try { File.Delete(_fileName); } catch (IOException ex) { Trace.WriteLine(string.Format("Unable to remove temporary file because of {0}", ex.Message)); } } disposed = true; GC.SuppressFinalize(this); } } #endregion } using (TempFile tempFile = new TempFile()) { filename = tempFile.FileName; using (FileStream fs = new FileStream(tempFile.FileName, FileMode.Create)) { using (StreamWriter sw = new StreamWriter(fs)) { sw.WriteLine("Write to temp."); } fs.Close(); } Console.WriteLine("The size of {0} is {1} bytes", tempFile.FileName, new FileInfo(tempFile.FileName).Length); }

Deja View - the feeling that you've seen this post before.

[Le centriste]

To add to the 2 other answers, in .NET 2.0, there are new constructors added to System.IO.FileStream. 2 of them take a FileOption argument (can be bitwised). One of the members of this enumeration is DeleteOnClose. I leave as an excercise for you to figure out what this does ;)

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