How do I get a .NET TextBox to implement MY OWN INTERFACE

This is a tough one. I know how to use and implement interfaces from my own classes, but how do I take a system.windows.forms.textbox and get it to implement an interface that I designed. I really don't want to have to inherit a textbox into a usercontrol and then do it from there... isn't there a more direct means to do it    I have tried creating an empty class file and making it look like the following...

===================================
Imports System.Windows.Forms

Public Class MyCustomTextBox
   Inherits ...
   Implements MyOwnInterface

End Class
==================================

and this is where it bombs... when I get the intellisense listing after I type the word Inherits, it doesn't even show System.Windows.Forms as an available choice in the list. It's a very limited subset of the framework. So does anyone know how I can take an existing windows control and get it to use MY INTERFACE

Thanks a lot, and I wish I could reward the winning answer with $2,000,000 dollars, but a simple "You are Godlike" will have to do.

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How do I get a .NET TextBox to implement MY OWN INTERFACE

natashanatasha

Yeah, you C# folk must have something referenced that is missing in VB.NET or something. Does anyone have a VB.NET example Thats what I am in.
raokramer
public class MyTextBox: System.Windows.Forms.TextBox, IMyInterface {

}

The above code in C# is equivalent to following code in VB.Net

Public Class MyTextBox
Inherits System.Windows.Forms.TextBox
Implements ImyInterface

End Class

I like working on both languages :))
BrianRD
Hmmm, interesting that it works for you C# folk. Unfortunately I am in VB.NET, where it doesn't. If anyone has a VB.NET Example, that would be great. And please try it yourself before saying it works so you can see the problem I am encountering.

Thanks guys.
Marcos Torres
I've tried it in C# and it works as expected:

public class Class1 : TextBox, IMyInterface
{
}
kryali

See answer below
bls
Somewhere in the Visual Studio Options, you can tell VB's IntelliSense to hide advanced types and members. http://www.bbits.co.uk/blog/archive/2004/05/22/225.aspx

Try turning that off...
Pierre Berkaloff
Forget about intelisense, just write it down ! In C#

public class MyTextBox: System.Windows.Forms.TextBox, IComparer {

}
Santos Ray Victorero, II
OK, I am 99.7% sure I figured it out. The problem, as is so often the case, is that the most obvious solution is the least checked and least thought of. I was creating a visual studio class library as a project type, then I began with an empty class definition and wondered why adding "Inherits ... " was not providing intellisense for textboxes, checkboxes, and whatever else I wanted to inherit from. Well a huge DUHHHHH makes this plainly obvious. When you start with a "Class Library" as a project type, your project has no reference to Windows.Forms, so even using Imports System.Windows.Forms is not going to do a dang thing. You STILL have to go to references and add the reference. That being done, you have full access to all the windows forms components.

See what happens when the obvious is examined... solutions are found.
How do I get a .NET TextBox to implement MY OWN INTERFACE

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