public void Edit_Click() { if ((selectedGroupType == null) || (selectedGroupType.GROUP_TYPE_ID == 0)) { MessageBox.Show("Please select a row to edit"); } else { GroupType _AA = new GroupType(); AddButtonVisibility = Visibility.Hidden; EditButtonVisibility = Visibility.Visible; GROUP_BOX_TITLE = "Edit Group Type"; _AA.DataContext = this; _AA.ShowDialog(); } }