Type checking in VB

[Jevakil]

How do you type check in VB?

Suppose I have a Textbox which I want to accept only integers, and give error otherwise. Is there a built in function that lets you set the textbox data type?

Thanks.

jevakil@mapdi.com

One nuclear bomb can ruin your whole day.

 

[PGARNER]

You can use the isnumeric function similar to the following example

If isnumeric(textbox.text) then

'action if numeric

Else

msgbox "Must enter a numeric value"
textbox.setfocus

End If

I hope this helps you out

 

[johnwm]

I normally use something like:

Private Sub Text1_KeyPress(KeyAscii As Integer)
Select Case KeyAscii
Case 8, 46, 48 To 57 'backspace, dec point & numbers only
Exit Sub
Case Else
KeyAscii = 0
Beep
End Select
End Sub

You still need to stop cut&paste though


Good Luck
johnwm

 

[Jevakil]

Thank you very much gentelment.

Regards,

Javad

jevakil@mapdi.com

One nuclear bomb can ruin your whole day.