numeric-only textbox as a control in Visual Studio toolbox

Question

I would like to make one numeric-only textbox. I\'d like to then add that same to the control toolbox within Visual Studio 2008

I\'ve already built the function to a

Answer 1

This is how you can create numeric TextBox:

public class NumericTextBox : TextBox
{
    protected override void OnKeyPress(KeyPressEventArgs e)
    {
        if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar))
        {
            e.Handled = true;
        }
        base.OnKeyPress(e);
    }
}