Hi Km,

You can't use the visual designer to subclass the textbox. You need to create a new class and have it inherit from the textbox class:

public class myTextBox : TextBox
{

}

>How can I subclass a textbox? I created a Windows Control Library project and choose "Add Inherited Control" from the Add New Item menu. However "textbox" is not available. Could any body show me the way?
>
>TIA