Only allow numeric values in the textbox

Question

I want to make a TextBox control that only accepts numerical values.

How can I do this in VB6?

Answer 1

The following may be used for whole numbers:

Private Sub text1_KeyPress(KeyAscii As Integer)
    If Not IsNumeric(text1.Text & Chr(KeyAscii)) And Not KeyAscii = 8 Then    KeyAscii = 0
    if (KeyAscii>=43) and (KeyAscii<=46) Then KeyAscii = 0 
    'it ignores '-', '+', '.' and ','
End Sub