所有沒有得到下載的記錄下載按鈕點擊

Question

我想下載被檢查的gridview記錄。 Gridview包含圖像以及數據。數據正在下載到Excel表格中。問題是當我檢查要下載的griview的記錄時。只有最後一次檢查的記錄被下載。所有沒有得到下載。我想我應該使用一個數組。但是幫助我做到這一點：

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

你應該做的線沿線的東西：不是

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

的：

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

與您的代碼要覆蓋data變量每當你找到一個價值。您需要添加到值列表而不是覆蓋它。