Private Sub ComboBox3_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox3.SelectedIndexChanged
If ComboBox3.SelectedIndex = 0 Then
combo = "1"
ElseIf ComboBox3.SelectedIndex = 1 Then
combo = "2"
ElseIf ComboBox3.SelectedIndex = 2 Then
combo = "3"
End If
End Sub