[Mono-bugs] [Bug 393981] New: [OSX] Systematic crash on launch of WinForm app

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Fri May 23 11:07:58 EDT 2008


           Summary: [OSX] Systematic crash on launch of WinForm app
           Product: Mono: Class Libraries
           Version: unspecified
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Windows.Forms
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: jdmuys at free.fr
         QAContact: mono-bugs at lists.ximian.com
          Found By: Third Party Developer/Partner

Created an attachment (id=217828)
 --> (https://bugzilla.novell.com/attachment.cgi?id=217828)
Source code of sample program to reproduce the crash

Description of Problem:

Steps to reproduce the problem:
1. Open System Preferences, and the International panel.
2. Go to the "Formats" pane
3. Select the French Format (if you have a submenu, select France)
4. close the System Preferences and Open a new terminal window (important: any
previously open terminal window will still have the old format settings)
5. launch any WinForm app
6. Watch it crash
7. Restore your previous Formats setting in the System Preferences.

Actual Results:
Unhandled Exception: System.FormatException: Unknown char: .
  at System.Double.Parse (System.String s, NumberStyles style, IFormatProvider
provider) [0x00016] in

Expected Results: no crash

How often does this happen? everytime

Additional Information: Mac OS X 10.5.2 on a MacBook Pro with 2 GB RAM.
$ mono --version
Mono JIT compiler version 1.9.1 (tarball)
Copyright (C) 2002-2007 Novell, Inc and Contributors. www.mono-project.com
        TLS:           normal
        GC:            Included Boehm (with typed GC)
        SIGSEGV:       normal
        Notification:  Thread + polling
        Architecture:  x86
        Disabled:      none

the crash happens when the format for floating point numbers includes a
floating-coma, instead of a floating point. Probably other settings than
French(France) will make it crash too.

My test program is a trivial Windows .NET program. It's full source is the
following few lines of code:

using System;
using System.Drawing;
using System.Windows.Forms;

public class HelloWorld : Form
        static public void Main ()
                Application.Run (new HelloWorld ());

        public HelloWorld ()
                Button b = new Button ();
                b.Text = "Click Me!";
                b.Click += new EventHandler (Button_Click);
                Text = "Hello Mono World";
                Controls.Add (b);
                MessageBox.Show ("Button Clicked!");

        private void Button_Click (object sender, EventArgs e)
                MessageBox.Show ("Button Clicked!");

I cannot test this program on a real .NET platform as I run on a Mac. But I
found it on the web form a reputable site. Moreover, the program works as
expected when the international format is set to United States.

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