DataGridView Numeric Only Cell?

Question

I am new to winforms..I am trying to set two column of DataGridView to Numeric Only.. I do not want user to be able to type anything into a cell unless its a natural number

Answer 1

Private Sub DataGridView1_EditingControlShowing(ByVal sender As Object, ByVal e As         System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles DataGridView1.EditingControlShowing
        AddHandler CType(e.Control, TextBox).KeyPress, AddressOf TextBox_keyPress
 End Sub
 Private Sub TextBox_keyPress(ByVal sender As Object, ByVal e As KeyPressEventArgs)
        If Char.IsDigit(CChar(CStr(e.KeyChar))) = False Then e.Handled = True
        If Not (Char.IsDigit(CChar(CStr(e.KeyChar))) Or e.KeyChar = ".") Then e.Handled = True
        If e.KeyChar = " "c Then e.Handled = False
  End Sub