how to inherite a class from System.windows.form.MessageBox?

[harvie wang]

Hi,
I want to add more buttons to messagebox, such as "Apply All".
Can i implement a custom messagebox, inherite from System.Windows.Form.MessageBox?

Best wish,

harvie

2006-1-18

[Mattias Sjögren]

> Can i implement a custom messagebox, inherite from System.Windows.Form.MessageBox?

No you'll have to inherit from Form and build it from scratch. The
standard MessageBox is provided by the operating system and not
extensible.
Mattias

--
Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

[harvie wang]

Hello Mattias,

thanks!

Can i implement a custom messagebox, inherite from
System.Windows.Form.MessageBox?

No you'll have to inherit from Form and build it from scratch. The
standard MessageBox is provided by the operating system and not
extensible.

Mattias

[NuTcAsE]

> No you'll have to inherit from Form and build it from scratch. The

standard MessageBox is provided by the operating system and not
extensible. Mattias

Actually, that is kinda incorrect. You can extend the MessageBox class,
but it requires a lot PInvoke class and a lot of pain for it to be
worthwhile. Below is an article on MSDN that talks about it:

http://msdn.microsoft.com/msdnmag/is...e/default.aspx

[Mattias Sjögren]

>Actually, that is kinda incorrect. You can extend the MessageBox class,

OK if you want to play the nitpicking game you're incorrect too. You
can't extend the MessageBox _class_ since it only has a private
constructor (and should really have been a static class if they had
existed in v1).

Sure you can do all sorts of weird things with the message box dialog
window with Win32 APIs, but just because you can doesn't mean you
should.
Mattias

--
Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.