[Mono-list] Can't open a StreamWritter with a file created by File.Create

HannibAl Bundie hannibalbundie@hotmail.com
Wed, 02 Jun 2004 17:18:50 +0200


Thanks a lot :)


>From: "RoBiK" <robik@mailbox.sk>
>To: "'HannibAl Bundie'" <hannibalbundie@hotmail.com>
>CC: <mono-list@lists.ximian.com>
>Subject: RE: [Mono-list] Can't open a StreamWritter with a file created by 
>File.Create
>Date: Wed, 2 Jun 2004 17:06:57 +0200
>
>Hi,
>
>It doesn't work, because "File.Create("test-file")" creates a new file and
>returns an FileStream object, wich holds the handle for the file. You do 
>not
>assing this object anywhere, so it is a candidate for the garbage
>collection. Until the GC disposes this object (this can take some time),
>wich releases the allocated file handle, the file is still opened. So if
>your next statement tryes to access this file, you get an sharing 
>violation.
>You should always call Close() to release the underlying file handle.
>
>Solution 1.:
>
>FileStream s = File.Create("test-file");
>s.Close();
>StreamWriter sw = new StreamWriter("test-file");
>//do some work
>sw.Close();
>
>Solution 2 (more elegant):
>
>using(StreamWriter sw = new StreamWriter(File.Create("test-file"))) {
>	//do some work
>}
>
>RoBiK
>
>-----Original Message-----
>From: mono-list-admin@lists.ximian.com
>[mailto:mono-list-admin@lists.ximian.com] On Behalf Of HannibAl Bundie
>Sent: Mittwoch, 02. Juni 2004 16:39
>To: mono-list@lists.ximian.com
>Subject: [Mono-list] Can't open a StreamWritter with a file created by
>File.Create
>
>Hi,
>
>With the mono beta 2 I'm not able to create a file with File.Create and
>then, open a StreamWritter on it.
>For example a simple program like this throws the error "Unhandled
>Exception: System.IO.IOException: Win32 IO returned 
>ERROR_SHARING_VIOLATION.
>
>Path: test-file" everytime I run it :
>
>using System;
>using System.IO;
>
>namespace Test {
>
>	public class test {
>
>		public test()
>		{
>			File.Create("test-file");
>			StreamWriter sw = new StreamWriter("test-file");
>		}
>
>		static void Main (string[] args)
>		{
>			new test();
>		}
>	}
>}
>
>But this kind of operation works perfectly on mono beta 1.
>
>
>So I would like to know if this bug is a regression (what regression !!) or
>just a bizzarery of my computer.
>Accordingly, I would be grateful if someone could run the little program
>above and tell me if he has the same result.
>In this case I'll open a bug on bugzilla, and in the other case any help
>would be appreciated :)
>
>Thanks in advance
>
>_________________________________________________________________
>Bloquez les fenÍtres pop-up, c'est gratuit ! http://toolbar.msn.fr
>
>_______________________________________________
>Mono-list maillist  -  Mono-list@lists.ximian.com
>http://lists.ximian.com/mailman/listinfo/mono-list
>
>
>_______________________________________________
>Mono-list maillist  -  Mono-list@lists.ximian.com
>http://lists.ximian.com/mailman/listinfo/mono-list

_________________________________________________________________
MSN Search, le moteur de recherche qui pense comme vous !  
http://search.msn.fr