Couple of NumericUpDown control questions

[SuperSparks]

I've got some NumericUpDown controls on my form, with a Maxvalue property of 255. However a user can type any number into the box, presumably up to 32000 characters in length. It doesn't break the app, because it just reverts to 255 as soon as you tab out of the box. I'd really rather limit the number of digits to 3, but I can't find a Maxlength property for it. Is this normal behaviour for NumericUpDown's, or am I missing something?

Also, they are defying all attempts at getting tooltips to work, although tooltips are fine for the other controls on the form

[Webtest]

Super -

On a whim, I tried the following and it works great! Use it as the foundation for what you want to do - get the length of the text string.

    Private Sub NumericUpDown1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles NumericUpDown1.KeyUp
        Dim tempstr As String
        tempstr = NumericUpDown1.Text
        MsgBox("TEST " & tempstr)
    End Sub

[SuperSparks]

Yeah, I could make that work, thanks Webtest

Any ideas on why Tooltips don't work, people?

[Webtest]

Super -

For what its worth, I can't get tool tips to work with a numeric up-down either (very primitive test panel). You might restart this thread with a new title which includes "tool tips".