[Mono-winforms-list] application crashes on pressing ALT, Arrow keys

Stifu stifu at free.fr
Thu Jul 23 11:30:31 EDT 2009


There have been 2 major releases since Mono 2.0, so this bug may well already
be fixed. Could you check with 2.4.x, or post the application so we can try?


Jijesh wrote:
> 
> Hi Everyone.
> 
> I have developed a small dataentry winforms application in c#. But the
> application is getting closed while pressing Arrow keys just after
> pressing ALT key in text boxes. It is not happening if we press any keys
> other than ALT. I am  getting the following exception as well:
> 
> Unhandled Exception: System.NullReferenceException: Object reference not
> set to an instance of an object
>   at System.Windows.Forms.MenuTracker.ProcessKeys
> (System.Windows.Forms.Message& msg, Keys keyData) [0x00000] 
>   at System.Windows.Forms.Menu.ProcessCmdKey
> (System.Windows.Forms.Message& msg, Keys keyData) [0x00000] 
>   at System.Windows.Forms.Control.ProcessCmdKey
> (System.Windows.Forms.Message& msg, Keys keyData) [0x00000] 
>   at System.Windows.Forms.TextBoxBase.ProcessCmdKey
> (System.Windows.Forms.Message& msg, Keys keyData) [0x00000] 
>   at System.Windows.Forms.Control.InternalPreProcessMessage
> (System.Windows.Forms.Message& msg) [0x00000] 
>   at System.Windows.Forms.Control.PreProcessMessage
> (System.Windows.Forms.Message& msg) [0x00000] 
>   at System.Windows.Forms.Control.PreProcessControlMessageInternal
> (System.Windows.Forms.Message& msg) [0x00000] 
>   at (wrapper remoting-invoke-with-check)
> System.Windows.Forms.Control:PreProcessControlMessageInternal
> (System.Windows.Forms.Message&)
>   at System.Windows.Forms.Application.RunLoop (Boolean Modal,
> System.Windows.Forms.ApplicationContext context) [0x00000] 
>   at System.Windows.Forms.Application.Run
> (System.Windows.Forms.ApplicationContext context) [0x00000] 
>   at System.Windows.Forms.Application.Run (System.Windows.Forms.Form
> mainForm) [0x00000] 
>   at DETool.Forms.LoginForm.Main () [0x00000]
> 
> mono version: 2.0.1-4
> operating system : ubuntu 9.0.4
> 
> 
> Thanks in advance
> Jijesh
> 
> 

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