Trapping Non Numeric Key

Im trying to trap non numeric key in TextBox but why this code don't Work?
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
If e.KeyChar < Chr(48) And e.KeyChar > Chr(57) Or e.KeyChar <> Chr(8) Then
e.Handled = True
End If
End Sub

Try this....

If Char.IsNumber(e.KeyChar) Then

or

If Not (Char.IsNumber(e.KeyChar)) AndAlso Strings.Asc(e.KeyChar) <> 8 Then

if it was the other way around......

If you want to respond only to numerics and back space then your code must be something like this if you want to keep your won format:
you should change the first AND with OR and the OR with AND


If (e.KeyChar < Chr(48) Or e.KeyChar > Chr(57)) And (e.KeyChar <> Chr(8)) Then

sorry if I'm reposting anything:)
this works well for me:

VB Code:

Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
        Dim KeyASCII As Integer = Asc(e.KeyChar)
        Dim BACK_SPACE As Integer = 8
 
        If KeyASCII <> BACK_SPACE AndAlso _
           KeyASCII < 48 OrElse KeyASCII > 57 Then
            ' Cancel the entered key, not a valid key
            e.Handled = True
        End If
    End Sub

btw I made my own textbox that accepts numbers only:D:D:D:D muhuhuhahahaha