private void button1_Click(object sender, EventArgs e)
        {
            string                 commodityId           = textBox1_ID.Text;
            string                 commodityName         = comboBox2.Text;
            string                 businessName          = comboBox1.Text;
            string                 str                   = textBox5_CBJ.Text;
            int                    costPrice             = int.Parse(str);
            string                 str1                  = textBox3_DJ.Text;
            int                    unitPrice             = int.Parse(str1);
            string                 str2                  = textBox4_SPKCL.Text;
            int                    commodityNumber       = int.Parse(str2);
            string                 remarks               = textBox7_BZ.Text;
            ProductInfoEntity      entity                = new ProductInfoEntity(commodityId, commodityName, businessName, costPrice, unitPrice, commodityNumber, remarks);
            IStockManageController stockManageController = new StockManageControllerImpl();

            bool term = stockManageController.InsertProductInfo(entity);

            if (term == true)
            {
                StockManage form = new StockManage();
                MessageBox.Show("添加库存信息成功");
                this.DialogResult = DialogResult.OK;
                this.Hide();
            }
            else
            {
                MessageBox.Show("添加库存信息失败!");
            }
        }
        //添加
        private void button1_Click(object sender, EventArgs e)
        {
            ProductInfoEntity      entity           = StockUpdate();
            IStockManageController manageController = new StockManageControllerImpl();
            bool term = manageController.UpdateProductInfo(entity, entity.ProductId);

            if (term == true)
            {
                MessageBox.Show("修改库存信息成功!");
                this.DialogResult = DialogResult.OK;
                this.Hide();
            }
        }
        public void selectColumn(string column, string table)
        {
            IStockManageController stockManageController = new StockManageControllerImpl();
            List <string>          list = stockManageController.SelectColumn(column, table);

            for (int i = 0; i < list.Count; i++)
            {
                string str = list[i];
                if (table.Equals("tb_supplier"))
                {
                    this.comboBox1.Items.Add(str);
                }
                else if (table.Equals("tb_purchase"))
                {
                    this.comboBox2.Items.Add(str);
                }
            }
        }