//楼层
//DataGrid数据模型
List<FloorRoomModel> floorRoomList = new List<FloorRoomModel>();
public class FloorRoomModel
{
    public string ID { get; set; }
    public FloorRoomModel(string _ID)
    {
        ID = _ID;
    }
    public FloorRoomModel() { }
}
//绑定楼层
private void BindFloor(string ID)
{
    XElement elFloor = GetElByID("Floor", ID);

    //绑定DataGrid
    floorRoomList.Clear();
    floorRoomList.Add(new FloorRoomModel("1"));
    floorRoomList.Add(new FloorRoomModel("2"));

    dgFloor.ItemsSource = floorRoomList;
    dgFloor.CanUserSortColumns = false;
    dgFloor.IsReadOnly = true;
}

//删除
private void btnDelete_Click(object sender, RoutedEventArgs e)
{
    //绑定DataGrid
    floorRoomList.Clear();
    floorRoomList.Add(new FloorRoomModel("2"));
    floorRoomList.Add(new FloorRoomModel("3"));

    dgFloor.ItemsSource = floorRoomList;
    dgFloor.CanUserSortColumns = false;
    dgFloor.IsReadOnly = true;
    MessageBox.Show("");
}