private void OKButton_Click(object sender, RoutedEventArgs e)
 {
     PhongSVCClient PhongClient = new PhongSVCClient();
     PhongClient.TinhTrang_Phong_AddCompleted += new EventHandler<System.ComponentModel.AsyncCompletedEventArgs>(PhongClient_TinhTrang_Phong_AddCompleted);
     int _TinhTrangPhongID=0;
     if (rbtCoTheDung.IsChecked==true)
     {
         _TinhTrangPhongID = TinhTrangPhongID;
     }
     else if (rbtCanSua.IsChecked == true)
     {
         _TinhTrangPhongID = 4;
     }
     else if (rbtChuaDon.IsChecked == true)
     {
         _TinhTrangPhongID = 5;
     }
     else if (rbtRoiPhong.IsChecked == true)
     {
         _TinhTrangPhongID = 6;
     }
     PhongClient.TinhTrang_Phong_AddAsync(0,PhongID, _TinhTrangPhongID, 0);
 }
        void HoaDonClient_HoaDon_AddCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
        {
            HoaDon_KhachHangSVCClient HoaDon_KhachHangClient = new HoaDon_KhachHangSVCClient();
            PhongSVCClient PhongClient = new PhongSVCClient();
            int PhongID = int.Parse(cbxPhong.SelectedValue.ToString());
            string sNgayBatDau = "";
            int iGioBatDau;
            int iPhutBatDau;
            int iNgayBatDau_So;
            int iThangBatDau;
            int iNamBatDau;
            string sNgayKetThuc = "";

            if (!String.IsNullOrEmpty(calNgayVao.SelectedDate.ToString()))
                sNgayBatDau = calNgayVao.SelectedDate.Value.ToString("MM/dd/yyyy");
            iGioBatDau = int.Parse(cbxGioVao.Text.ToString());
            iPhutBatDau = int.Parse(cbxPhutVao.Text.ToString());
            iNgayBatDau_So = DateToNumberConverter.Date2Number(sNgayBatDau);
            iThangBatDau = DateToNumberConverter.Date2Month(sNgayBatDau);
            iNamBatDau = DateToNumberConverter.Date2Year(sNgayBatDau);
            if (!String.IsNullOrEmpty(calNgayRa.SelectedDate.ToString()))
                sNgayKetThuc = calNgayRa.SelectedDate.Value.ToString("MM/dd/yyyy");

            foreach (KhachHangInfo item in listKhachHang)
            {
                HoaDon_KhachHangClient.HoaDon_KhachHang_AddAsync("DatPhong", item.KhachHangID, PhongID, sNgayBatDau, iGioBatDau, iPhutBatDau, iNgayBatDau_So, iThangBatDau, iNamBatDau, sNgayKetThuc);
            }
            PhongClient.TinhTrang_Phong_AddCompleted += new EventHandler<System.ComponentModel.AsyncCompletedEventArgs>(PhongClient_TinhTrang_Phong_AddCompleted);
            PhongClient.TinhTrang_Phong_AddAsync(0, PhongID, 2, iNgayBatDau_So);
        }