NumericTextBox only accepts greater than 0

[Flashbond]

Hi!

I am currently using this custom numerictextbox class: http://msdn.microsoft.com/en-us/libr...(v=vs.90).aspx

I modified like this to make it not to accept negatives:

Public Class NumericTextBox
    Inherits TextBox
    Private SpaceOK As Boolean = False
    Protected Overrides Sub OnKeyPress(ByVal e As KeyPressEventArgs)
        MyBase.OnKeyPress(e)
        Dim numberFormatInfo As NumberFormatInfo = System.Globalization.CultureInfo.CurrentCulture.NumberFormat
        Dim decimalSeparator As String = numberFormatInfo.NumberDecimalSeparator
        Dim groupSeparator As String = numberFormatInfo.NumberGroupSeparator
        Dim negativeSign As String = numberFormatInfo.NegativeSign
        If groupSeparator = CChar(ChrW(160)).ToString() Then
            groupSeparator = " "
        End If
        Dim keyInput As String = e.KeyChar.ToString()
        If [Char].IsDigit(e.KeyChar) Then
        ElseIf keyInput.Equals(decimalSeparator) OrElse keyInput.Equals(groupSeparator) Then           
        ElseIf e.KeyChar = vbBack Then
        ElseIf Me.SpaceOK AndAlso e.KeyChar = " "c Then
        Else
            e.Handled = True
        End If
    End Sub
    Public ReadOnly Property IntValue() As Integer
        Get
            Return Int32.Parse(Me.Text)
        End Get
    End Property
    Public Property AllowSpace() As Boolean
        Get
            Return Me.SpaceOK
        End Get
        Set(ByVal value As Boolean)
            Me.SpaceOK = value
        End Set
    End Property
End Class

What should I do to make it ignore the first '0' inorder to have only positives?

I have another question. It is revelant to this but I think I have to open another thread according to forum rules.
EDIT: http://www.vbforums.com/showthread.p...GridView-class

Thanks a lot!

[dbasnett]

Why not just use a NumericUpDown? BTW - Can the user paste into this? If so KeyPress won't be fired.

[Flashbond]

Aaah! I forgot about the 'paste' totally!
Yeah, I've tested it just right now. It doesn't accept Ctrl+V but right click.
How about disabling context menu?

EDIT: I set ShortcutsEnabled poperty to False.

[JuggaloBrotha]

Aaah! I forgot about the 'paste' totally!
Yeah, I've tested it just right now. It doesn't accept Ctrl+V but right click.
How about disabling context menu?

EDIT: I set ShortcutsEnabled poperty to False.

You're trying to hack a control into doing what it's simply not meant to do. If you really want to continue to try and force a textbox into a locked down, numbers only thing, you'll need to become very familiar with the WndProc event and become familiar with all of the messages that the control will receive (which includes cut, copy, paste, etc..)
--or--
You could use a .Net provided control that gives you exactly what you're wanting to do. I'll give you a hint, dbasnett has already mentioned it.

[Shaggy Hiker]

I'd go with the NUD, myself. There are too many alternative issues with textboxes.