How to restrict user input to a couple values in a DataGridView

Question

I need to come up with a way to restrict the user from entering anything other than 1 or 2 in a column in my dgv. I have it so the user is restricted

Answer 1

many different ways to approach this .. i use RegEx

with this

Private Function CleanInputNumber(ByVal str As String) As String
    Return System.Text.RegularExpressions.Regex.Replace(str, "[a-zA-Z\b\s-.]", "")
End Function

and this

Private Function CleanInputAlphabet(ByVal str As String) As String
    Return System.Text.RegularExpressions.Regex.Replace(str, "[0-9\b\s-]", "")
End Function

you should figure it out

and this is the event i use

Private Sub xDataGridView_CellValidating(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellValidatingEventArgs) Handles xDataGridView.CellValidating

    If xDataGridView.CurrentRow.Cells("xColumn").IsInEditMode Then

        Dim c As Control = xDataGridView.EditingControl

        Select Case xDataGridView.Columns(e.ColumnIndex).Name

            Case "xColumn"
                c.Text = CleanInputNumber(c.Text)

                'Case "yColumn"
                '    c.Text = CleanInputAlphabet(c.Text)                

        End Select       
    End If
End Sub