public frmItemsManagement(string UserName, string PassWord)
        {
            this.UserName = UserName;
            this.PassWord = PassWord;
            InitializeComponent();
            Image     image;
            DataTable dtItemsManagement = ManagementController.ItemsManagement(UserName, PassWord).Tables[0];

            foreach (DataRow dr in dtItemsManagement.Rows)
            {
                string ItemName        = dr["ItemName"].ToString();
                string ImportPrice     = dr["ImportPrice"].ToString();
                string SalePrice       = dr["SalePrice"].ToString();
                string Description     = dr["Description"].ToString();
                string Origin          = dr["Origin"].ToString();
                string CategoryName    = dr["CategoryName"].ToString();
                string SubCategoryName = dr["SubCategoryName"].ToString();
                string Quantity        = dr["Quantity"].ToString();
                string ImageTemp       = dr["Image"].ToString();
                string appPath         = Application.StartupPath.Substring(0, (Application.StartupPath.Length - 10)) + @"\images\imagesProduct\";
                string FileName        = appPath + ImageTemp;
                image = Image.FromFile(FileName);
                image = new Bitmap(image, new Size(70, 70));
                dtGVItemsManagement.Rows.Add(ItemName, ImportPrice, SalePrice, Description, Origin, CategoryName, SubCategoryName, Quantity, image);
            }
        }
 private void btnDeleteItems_Click(object sender, EventArgs e)
 {
     if (ItemName != "")
     {
         DialogResult dialog = MessageBox.Show("Bạn có muốn xóa " + ItemName + " khỏi cửa hàng không?", "Thông báo", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
         if (dialog == DialogResult.Yes)
         {
             bool check = ManagementController.DeleteItem(UserName, PassWord, ItemName, ref err);
             if (check == true)
             {
                 DialogResult dialogResult;
                 dialogResult = MessageBox.Show("Bạn xóa  " + ItemName + " thành công", "Thông báo", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
                 if (dialogResult == DialogResult.OK)
                 {
                     Image     image;
                     DataTable dtItemsManagement = ManagementController.ItemsManagement(UserName, PassWord).Tables[0];
                     dtGVItemsManagement.Rows.Clear();
                     foreach (DataRow dr in dtItemsManagement.Rows)
                     {
                         string ItemName        = dr["ItemName"].ToString();
                         string ImportPrice     = dr["ImportPrice"].ToString();
                         string SalePrice       = dr["SalePrice"].ToString();
                         string Description     = dr["Description"].ToString();
                         string Origin          = dr["Origin"].ToString();
                         string CategoryName    = dr["CategoryName"].ToString();
                         string SubCategoryName = dr["SubCategoryName"].ToString();
                         string Quantity        = dr["Quantity"].ToString();
                         string ImageTemp       = dr["Image"].ToString();
                         string appPath         = Application.StartupPath.Substring(0, (Application.StartupPath.Length - 10)) + @"\images\imagesProduct\";
                         string FileName        = appPath + ImageTemp;
                         image = Image.FromFile(FileName);
                         image = new Bitmap(image, new Size(70, 70));
                         dtGVItemsManagement.Rows.Add(ItemName, ImportPrice, SalePrice, Description, Origin, CategoryName, SubCategoryName, Quantity, image);
                     }
                 }
             }
             else
             {
                 MessageBox.Show("Bạn đã xóa món ăn khỏi hệ thống KHÔNG thành công", "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Error);
             }
         }
     }
     else
     {
         MessageBox.Show("Bạn chưa chọn món ăn để xóa", "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }