[Mono-winforms-list] Porting Windows App
Gideon de Swardt
gdeswardt1978 at yahoo.co.uk
Tue Oct 3 05:19:46 EDT 2006
Hi All
I have been keeping a keen eye on the mono implementation of Windows Forms project for quite some time now. After every release I would go test some small apps that was originally developed for windows. I have always had trouble with this one specific test app. I have mono 1.1.17.1 installed.
I compiled the source code on my Linux box successfully, but receive the following error during execution:
Mono System.Windows.Forms Assembly [$auto_build_revision$]
Gtk colorscheme read
Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object
at System.Windows.Forms.MimeIconEngine.GetIconIndexForMimeType (System.String mime_type) [0x00000]
at System.Windows.Forms.UnixFileSystem..ctor () [0x00000]
at System.Windows.Forms.MWFVFS..ctor () [0x00000]
at System.Windows.Forms.FolderBrowserDialog+FolderBrowserTreeView..ctor (System.Windows.Forms.FolderBrowserDialog parent_dialog) [0x00000]
at (wrapper remoting-invoke-with-check) FolderBrowserTreeView:.ctor (System.Windows.Forms.FolderBrowserDialog)
at System.Windows.Forms.FolderBrowserDialog..ctor () [0x00000]
at (wrapper remoting-invoke-with-check) System.Windows.Forms.FolderBrowserDialog:.ctor ()
at dev.Cleanup.Cleanup.InitializeComponent () [0x00000]
at dev.Cleanup.Cleanup..ctor () [0x00000]
at (wrapper remoting-invoke-with-check) dev.Cleanup.Cleanup:.ctor ()
at dev.Cleanup.Cleanup.Main () [0x00000]
Please see attached the source file for this little program "Cleanup.cs"
Here is the command line for compiling the source code.
$ gmcs -target:winexe -out:Cleanup.exe -r:System.Windows.Forms -r:System.Drawing -r:System.Data Cleanup.cs
I dont know if this is something specific in the code that is causing this problem, or whether is an actual bug.
Regards
Gideon de Swardt
http://sonskyn-techno.blogspot.com
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