所有未通过下载按钮单击下载的记录

Question

我正在尝试下载已检查的gridview记录。 Gridview包含图像和数据。数据将在Excel工作表中下载。问题是当我检查要下载的griview的记录时。仅下载最后检查的记录。所有都没有下载。我想我应该使用一个数组。但请帮我这样做：

   BubnaManager manager = new BubnaManager();
        int count = GridAssigned.Rows.Count;
        var data = (List<ProductImageMapWrapper>)null;
        for (int i = 0; i < count; i++)
        {

            HiddenField ImageId = GridAssigned.Rows[i].FindControl("hdn_id2") as HiddenField;
            int ImId = Convert.ToInt32(ImageId.Value);
            CheckBox chkIDLabel = GridAssigned.Rows[i].FindControl("NewCheckBoxImage") as CheckBox;
            if (chkIDLabel.Checked == true)
            {
                TextBox txtCompany = GridAssigned.Rows[i].FindControl("TextBoxCompany") as TextBox;
                TextBox txtBrand = GridAssigned.Rows[i].FindControl("TextBoxBrand") as TextBox;
                HiddenField hdBrand = GridAssigned.Rows[i].FindControl("newhdBrand") as HiddenField;
                HiddenField hdCompany = GridAssigned.Rows[i].FindControl("newhdCompany") as HiddenField;
                int brandid = bm.getIdbyBrand(txtBrand.Text);
                int CompanyId = bm.getIdbyCompany(txtCompany.Text);
                data = manager.GetSearchResultForAssignedProductImageMap1(ImId, CompanyId, brandid);
            }

        }


if(data.count!=0)
{
// code for downloading
}

Answer 1

你应该按照以下方式做点什么：

data.add(manager.GetSearchResultForAssignedProductImageMap1(ImId, CompanyId, brandid));

而不是：

data = manager.GetSearchResultForAssignedProductImageMap1(ImId, CompanyId, brandid);

使用您的代码，每次找到值时都会覆盖data变量。您需要添加到值列表而不是覆盖它。