3 replies to this topic

[jashsayani]

I have just made a small application in VB6 and would like to implement data validation for a few fields. Like the user can only enter a number in the Telephone number field.

How can this be implemented ?

Thanks.

[anglina]

post code or lookup some tuts first.

[thanasis2028]

Here is how you can validate a textbox:

  Private Sub TextBox1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown
        If e.KeyCode = Keys.A Then
            e.SuppressKeyPress = False
        Else
            e.SuppressKeyPress = True
        End If
    End Sub

This code is used in the eydown event of a textbox and in this way the only key to be accepted is "a". With some more work you can validate whatever you want.

[anglina]

Another way to do it is by using Regular Expressions

http://www.regular-e...nfo/dotnet.html

Edited by anglina, 13 April 2010 - 03:42 PM.
Code was incorrect