使用 RedirectToAction 将信息传递给另一个操作 - MVC [英] Passing info to another action using RedirectToAction - MVC

问题描述

我有这个动作:

    public ActionResult Report(AdminReportRequest reportRequest, FormCollection formVariables)
    {
        AdminEngine re = new AdminEngine();

        AdminReport report = re.GetCompleteAdminReport(reportRequest);

        return View(report);
    }

我想知道如何重定向到同一控制器内的另一个操作，传递 AdminReportRequest 和 FormCollection 变量?

I was wondering how could I go about Redirecting to another action within the same controller, passing the AdminReportRequest, and FormCollection variables?

我有这样的想法:

    public ActionResult EarningsSalesReport(AdminReportRequest reportRequest, FormCollection formVariables)
    {
        if (!reportRequest.Download)
        {
            AdminEngine re = new AdminEngine();

            AdminReport report = re.GetCompleteAdminReport(reportRequest);

            return View(report);
        }

        return RedirectToAction("ExcelSalesReport", reportRequest, formVariables);

    }

    public FileResult ExcelSalesReport(AdminReportRequest reportRequest, FormCollection formVariables)
    {
        AdminEngine re = new AdminEngine();

        Stream SalesReport = re.GetExcelAdminReport(reportRequest);

        return new FileStreamResult(SalesReport, "application/ms-excel")
        {
            FileDownloadName = "SalesReport" + DateTime.Now.ToString("MMMM d, yyy") + ".xls"
        }; 
    }

这显然是错误的，并抛出了一些错误，例如:

This is obviously wrong and throws up some errors, such as:

'System.Web.Mvc.Controller.RedirectToAction(string,细绳，System.Web.Routing.RouteValueDictionary)'有一些无效的参数

'System.Web.Mvc.Controller.RedirectToAction(string, string, System.Web.Routing.RouteValueDictionary)' has some invalid arguments

和

参数 3:不能从'System.Web.Mvc.FormCollection' 到'System.Web.Routing.RouteValueDictionary'

Argument 3: cannot convert from 'System.Web.Mvc.FormCollection' to 'System.Web.Routing.RouteValueDictionary'

如果有人能指出我正确的方向，我将不胜感激，我想我可能需要编辑 Global.asax 文件，但我对此并不太熟悉.

If someone could point me in the right direction I'd greatly appreciate it, I think I might have to edit the Global.asax file however I'm not overly familiar with this.

谢谢.

推荐答案

您可以使用 TempData 对象.

TempData 属性值存储在会话状态中.设置 TempDataDictionary 值后调用的任何操作方法都可以从对象中获取值，然后处理或显示它们.TempData 的值一直存在，直到它被读取或直到会话超时.

The TempData property value is stored in session state. Any action method that is called after the TempDataDictionary value is set can get values from the object and then process or display them. The value of TempData persists until it is read or until the session times out.

这篇 MSDN 文章解释了一切.

public ActionResult EarningsSalesReport(AdminReportRequest reportRequest, FormCollection formVariables)
{
   //...
   TempData["Report"] = reportRequest;  //store to TempData
   //...
}

public FileResult ExcelSalesReport(AdminReportRequest reportRequest, FormCollection formVariables)
{
  //...
  var report = TempData["Report"] as AdminReportRequest;
  //...
}

这篇关于使用 RedirectToAction 将信息传递给另一个操作 - MVC的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！