private void CustomersDataTable_OnMouseDoubleClick(object sender, MouseButtonEventArgs e)
        {
            if (PurchaseGridControl.VisibleRowCount == 0) return;
            int rowHandle = PurchaseGridControl.View.FocusedRowHandle;
            if (rowHandle < 0) return;
            _purchaseClient = new PurchaseClient();
            int purchaseId = Convert.ToInt32(PurchaseGridControl.GetCellValue(rowHandle, "PurchaseID").ToString());
            _getPurchase = _purchaseClient.GetPurchaseById(purchaseId);

            if (_getPurchase == null) return;
            LoadPurchaseStoreGridControl(_getPurchase);
               // OrderDateDateEdit.Text = order.OrderDate.ToString();
        }
 private void SuppliersDataTable_FocusedRowChanged(object sender, FocusedRowChangedEventArgs e)
 {
     if (PurchasesDataGrid.VisibleRowCount == 0) return;
     int rowHandle = PurchasesDataGrid.View.FocusedRowHandle;
     if (rowHandle < 0) return;
     PurchaseClient purchaseClient = new PurchaseClient();
     int purchaseId = (int) PurchasesDataGrid.GetCellValue(rowHandle, "PurchaseID");
     Purchase getPurchase = purchaseClient.GetPurchaseById(purchaseId);
     if (getPurchase == null) return;
     LoadGridProducts(getPurchase);
 }