<ScrollViewer Grid.Row="1" VerticalScrollBarVisibility="Auto">
			<WrapPanel Orientation="Horizontal" x:Name="TablePanel"></WrapPanel>
		</ScrollViewer>
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        private void LoadTableList()
        {
            TablePanel.Children.Clear();
            ObservableCollection<TableFood> TableList;
            TableList = new ObservableCollection<TableFood>(DataProvider.Instance.Data.TableFoods);
            foreach (var item in TableList)
            {
                Button button = new Button() { Width = TableWidth, Height = TableHeight };
                button.Content = item.Name + Environment.NewLine + item.Status;
                button.Click += Button_Click;
                button.Tag = item;
                switch (item.Status)
                {
                    case "Trống":
                        button.Background = Brushes.Red;
                        break;
                    default:
                        button.Background = Brushes.YellowGreen;
                        break;
                }
                TablePanel.Children.Add(button);
            }
        }
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   private void btnOrderFood_Click(object sender, RoutedEventArgs e)
        {
            TableFood table = lsvBill.Tag as TableFood;
            int idBill = BillViewModel.Instance.GetUncheckBillIDByTableID(table.Id);
            int FoodId = (cmbFood.SelectedItem as Food).Id;
            int Count = Int32.Parse(txtCount.Text);
            if (idBill == -1)
            {
                BillViewModel.Instance.InsertBill(table.Id);
                BillViewModel.Instance.InsertBillInfo(BillViewModel.Instance.GetMaxIdBill(), FoodId, Count);
            }
            else
            {
                BillViewModel.Instance.InsertBillInfo(idBill, FoodId, Count);
            }
            MessageBox.Show("Gọi món thành công");
            ShowBill(table.Id);
            LoadTableList();
        }
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