private void btnAdd_Click(object sender, EventArgs e)
        {
            frmProductSupplierInfoAdd myfrmProSupInfo = new frmProductSupplierInfoAdd();

            myfrmProSupInfo.ShowDialog();
            if (myfrmProSupInfo.DialogResult == DialogResult.OK)
            {
                btnSearch_Click(sender, e);
            }
        }
        private void btnModify_Click(object sender, EventArgs e)
        {
            int count = this.gdvInfo.SelectedRowsCount;

            if (count == 0)
            {
                MessageBox.Show("请先搜索/刷新并选择需要修改的用户行", "错误!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            string paramProductID    = this.gdvInfo.GetFocusedRowCellValue("product_id").ToString();
            string paramProductName  = this.gdvInfo.GetFocusedRowCellValue("product_name").ToString();
            string paramSupplierID   = this.gdvInfo.GetFocusedRowCellValue("supplier_id").ToString();
            string paramSupplierName = this.gdvInfo.GetFocusedRowCellValue("name").ToString();
            string paramPrice        = this.gdvInfo.GetFocusedRowCellValue("pro_price").ToString();
            string paramRemark       = this.gdvInfo.GetFocusedRowCellValue("remark").ToString();
            frmProductSupplierInfoAdd myfrmProSupInfo = new frmProductSupplierInfoAdd(paramProductID, paramProductName, paramSupplierID, paramSupplierName, paramPrice, paramRemark);

            myfrmProSupInfo.ShowDialog();
            if (myfrmProSupInfo.DialogResult == DialogResult.OK)
            {
                btnSearch_Click(sender, e);
            }
        }