Using Class Function to control a Window Form ?

I have a problem , which I need to write out a function which is to enabled and disabled button for a form.How can I do it ?

my class function will recevied an Action and the FormName, then base on the Action and FormName, I will enabled and disabled button for that form.

Example :

Form1 :

This form got 7 button :
Button1,Button2,Button3,Button4,Button5,Button6,Button7

When Button1 onclick , I will call the class function to enabled Button2,Button3,Button4
and disabled Button5,Button6,Button7.

I want to do like this, because I got 200 form , and If I not do like this , each form I also need to put in the same code to control to button.
If I got this class function , I just call the function , then everthing will be done.

Anyone can help me ?
Thank you ~~~

It would be much easier if you passed a reference to an actual form instead of its name, but even better you should just use inheritance. Make one master form with this ability then inherit all other forms from it. This is especially useful if you have to change something later.

thank for your reply.
Can you give me example for more clear ?
Sorry I still new in VB.Net.

If I want to use this class of function for other program , Isn't I also doing the same way?
Why not I create a class function , If I got any changing on the class function , I just replace the file , no need to changing on the program rite ?

Got any diffrent with the method that you suggest and the method i using now ?

Or for more clear , I want this class not only use for 1 proram. For the future or other that this program , I still can use it.
Please help to solve this problem.
Thank you ~~

I think Ednnesis is suggesting something like this :

Public Class Form1
Inherits System.Windows.Forms.Form

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Button2.Enabled = True
Button3.Enabled = True
Button4.Enabled = True
Button5.Enabled = True
Button6.Enabled = True
Button7.Enabled = True

End Sub
End Class

Public Class Form2
Inherits MyApplication.Form1

'Do specific stuff in this form...

End Class

Public Class Form3
Inherits MyApplication.Form1

'Do specific stuff in this form...

End Class

Now every time you click on Button1 in Form2 or Form3 it will enable the other buttons on the form.

Hope this helps.

Thats correct or use visual inheritance, but I don't have any specifics for you, try it and see how far you get or search the help.

thanks for Edneeis and Jaycee.
I get what your mean already.

But here I got another problem. Which is when I apply this method , I will face some problem which I need to modified the class function, i need to recompile again the program and resend again the program to the client.

While when I create out the public class function (dll), I just need to replace this file enough at all right ?
And at the same time I also easy to apply the same class function to other program, right?

Isn't this method more applicable ?

Actually I not very familiar with vb.net, so I need advise or any suggestion from you all.
Thank you.. Hope to get your reply soon ~~ !!!