protected void BT_SubmitProduct_Click(object sender, EventArgs e)
    {
        int CategoryID = Convert.ToInt32(DDL_TheLoai.SelectedValue.ToString());

        if (CategoryID == 0)
        {
            WebMsgBox.Show("Bạn phải chọn thể loại sản phẩm");
            LBL_Cate.Visible          = true;
            DDL_TheLoai.SelectedValue = "0";
        }
        else
        {
            LBL_Cate.Visible = false;
            string NameProduct = HtmlRemoval.StripTagsRegex(TB_TenSanPham.Text.Trim());
            string ProductCode = HtmlRemoval.StripTagsRegex(TB_MaSanPham.Text.Trim());
            double GiaGoc;
            if (TB_GiaGoc.Text.Trim() == "")
            {
                GiaGoc = 0;
            }
            else
            {
                GiaGoc = Convert.ToDouble(TB_GiaGoc.Text.Trim());
            }
            double GiaBan;
            if (TB_GiaBan.Text.Trim() == "")
            {
                GiaBan = 0;
            }
            else
            {
                GiaBan = Convert.ToDouble(TB_GiaBan.Text.Trim());
            }
            int GiamGia;
            if (TB_GiamGia.Text.Trim() == "")
            {
                GiamGia = 0;
            }
            else
            {
                GiamGia = Convert.ToInt32(TB_GiamGia.Text.Trim());
            }
            int QuantityInProduct;
            if (TB_SoLuongCo.Text.Trim() == "")
            {
                QuantityInProduct = 0;
            }
            else
            {
                QuantityInProduct = Convert.ToInt32(TB_SoLuongCo.Text.Trim());
            }
            int QuantitySalesProduct = 0;
            if (TB_SoLuongBan.Text.Trim() == "")
            {
                QuantitySalesProduct = 0;
            }
            else
            {
                QuantitySalesProduct = Convert.ToInt32(TB_SoLuongBan.Text.Trim());
            }
            string PartImage          = TB_PartImage.Value.Trim();
            string DescriptionProduct = TB_MoTa.Text.Trim();
            string Details            = FCKeditor.Value.Trim();
            int    Type = Convert.ToInt32(DDL_Type.SelectedValue.ToString());
            if (Convert.ToInt32(HD_ID_Product.Value) != 0)
            {
                if (ToolsAdmin.Update_Product(Convert.ToInt32(HD_ID_Product.Value), CategoryID, NameProduct, ProductCode, GiaGoc, GiaBan, GiamGia, QuantityInProduct, QuantitySalesProduct, PartImage, DescriptionProduct, Details, Type))
                {
                    HD_Select_CategoryID.Value = DDL_SearchCategory.SelectedValue;
                    if (Convert.ToInt32(HD_Select_CategoryID.Value) == 0)
                    {
                        set_Text_Product();
                        DIV_AddEditProduct.Visible = false;
                        Load_Grid_Products();
                    }
                    else
                    {
                        set_Text_Product();
                        DIV_AddEditProduct.Visible = false;
                        Load_SearchProduct_ByCategory();
                    }
                }
                else
                {
                    WebMsgBox.Show("Error Update");
                }
            }
            else if (Convert.ToInt32(HD_ID_Product.Value) == 0)
            {
                if (ToolsAdmin.Insert_Product(Convert.ToInt32(HD_ID_Product.Value), CategoryID, NameProduct, ProductCode, GiaGoc, GiaBan, GiamGia, QuantityInProduct, QuantitySalesProduct, PartImage, DescriptionProduct, Details, Type))
                {
                    HD_Select_CategoryID.Value = DDL_SearchCategory.SelectedValue;
                    if (Convert.ToInt32(HD_Select_CategoryID.Value) == 0)
                    {
                        set_Text_Product();
                        DIV_AddEditProduct.Visible = false;
                        Load_Grid_Products();
                    }
                    else
                    {
                        set_Text_Product();
                        DIV_AddEditProduct.Visible = false;
                        Load_SearchProduct_ByCategory();
                    }
                }
                else
                {
                    WebMsgBox.Show("Error Insert");
                }
            }
            //TB_SearchProduct.Text = "";
            set_Hidden_DIVProduct();
        }
    }