Question

Jeremy Skinner有一个关于从MVC Contrib导出电子表格的博客和视频。问题是他的视频或博客中没有进行过滤。在与包含网格的页面相关联的控制器中，我有过滤器，并且在与“导出到电子表格”相关联的控制器中，我需要过滤而不重置。问题是，每次我点击“导出到”时变量都会重置电子表格“链接。如何在不重置的情况下将该变量从一个控制器转换到另一个控制器？

这是Jeremy的链接http://www.jeremyskinner.co.uk/2010/04/28/mvccontrib-grid-presentation。谢谢!!

Answer 1

我最终创建了一个这样的Session变量：

1-通过编辑web.config启用会话变量：。

<configuration>
   <system.web>
      <sessionState cookieless="true" regenerateExpiredSessionId="true" />
   </system.web>
</configuration>

2-在第一个控制器中创建会话状态

Session["FirstName"] = FirstNameTextBox.Text;

3-在第二个控制器中使用会话状态

string firstName = (string)(Session["FirstName"]);

Answer 2

使用TempData [“”]对象。

您的ViewModel应该看起来像：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;
using MvcContrib.Pagination;
using MvcContrib.UI.Grid;
using System.Web.Mvc;

namespace MyMVCProject.ViewModels
{
    public class SubscriptionViewModel
    {
        public int SubscriptionID { get; set; }        
        public string SubNo { get; set; }               
    }
    public class SubscriptionListContainerViewModel
    {
        public IPagination<SubscriptionViewModel> SubscriptionPagedList { get; set; }
        public SubscriptionFilterViewModel Filters { get; set; }
        public GridSortOptions GridSortOptions { get; set; }
        public int? TotalCount { get; set; }
    }
    public class SubscriptionFilterViewModel
    {
        public int? CustomerID { get; set; }
        public int? PlanID { get; set; }        
    }
}

您的控制器操作：

    public ActionResult Index(SubscriptionListContainerViewModel model, GridSortOptions gridSortOptions, int? page)
            {
              SubscriptionFilterViewModel filter = new SubscriptionFilterViewModel();
                if (model.Filters != null)
                {
                    filter.CustomerID = model.Filters.CustomerID;
                    filter.PlanID = model.Filters.PlanID;
                }
              TempData["Filters"]=filter;
             //code for IPagination<SubscriptionViewModel> population.
            }

导出功能：

public void Export()
        {
          SubscriptionFilterViewModel filter = (SubscriptionFilterViewModel)TempData["Filters"];
          TempData["Filters"]=filter;
          //code for IPagination<SubscriptionViewModel> population and excel creation.
          //output the excel after creation

            Guid fileId = Guid.NewGuid();
            string strFileName = Convert.ToString(fileId) + ".xls";
            string strFilePathnName = HttpContext.Server.MapPath ("~/Content/Uploads/Excels/Export/") + strFileName;
            MemoryStream file = new MemoryStream();
            hssfworkbook.Write(file);
            System.IO.File.WriteAllBytes(strFilePathnName, file.GetBuffer());
            System.IO.FileInfo inf = new FileInfo(strFilePathnName);
            HttpContext.Response.AddHeader("Content-Disposition", "attachment; filename=Blogs" + inf.Extension);
            HttpContext.Response.ContentType = "application/ms-excel";
            HttpContext.Response.TransmitFile(HttpContext.Server.MapPath ("~/Content/Uploads/Excels/Export/" + strFileName));
        }

在“导出到Excel”按钮中调用导出操作单击。

如何使用MVC Contrib将变量从一个控制器传递到另一个控制器？

2 个答案: