Hi Kevin,

An .EXE. will require a Main() method. You will want to store your class as a DLL.

>Bonnie,
>
>I created a class and pasted in the code. I tried to compil it and
>got an error:
>
>Program '...MCMControls.exe' does not have an entry point defined
>
>What am I doing wrong?
>
>Thanks
>
>
>
>>Kevin,
>>
>>You can't do it visually, but you can still put these kinds of sub-classes in your ToolBox in order to drag them onto your form.
>>
>>Basically, you'll want a class library that contains your sub-classed UI controls, like textbox, button, etc. Something like this:
>>

>>using System;
>>using System.Drawing;
>>using System.Collections;
>>using System.ComponentModel;
>>using System.Windows.Forms;
>>using System.Data;
>>
>>namespace MyCompany.WinUI.MyClasses
>>{
>>	public class MyComboBox : System.Windows.Forms.ComboBox
>>	{
>>		// code here
>>	}
>>
>>	public class MyTextBox : System.Windows.Forms.TextBox
>>	{
>>		// code here
>>	}
>>
>>	public class MyButton : System.Windows.Forms.Button
>>	{
>>		// code here
>>	}
>>}
>>

>>That's it. These controls can't be sub-classed visually, but as you can see, it's easy enough to do it in code. I have all the basic controls sub-classed in one class library file. Once they're added to the ToolBox, then can be dragged onto any design surface in the IDE.
>>
>>To add to the ToolBox, do the following: When you have the IDE open in the designer view (not the code view), go to the ToolBox, right-click anywhere and choose the Add/Remove Items, click on Browse and find the .DLL where your sub-classed controls are (you obviously needed to have compiled the class library after you created it). That's it ... they'll then be added to your ToolBox.
>>
>>~~Bonnie
>>
>>
>>
>>>How do I subclass a command button in C#.Net?
>>>
>>>I'd like to do it visually, so I can then drag my class onto
>>>a form.
>>>
>>>Thanks