MVC将数据从视图发送到httpcontext类

Question

i tried this but dose not work

  @{ 
         HttpContext.Current.Items["key"] = Reservation.ConfirmationFilename;

  }

and this is context

 public class DownloadFile : IHttpHandler
{

    public void ProcessRequest(HttpContext context)
    {


         //here file name is null 

        string fileName = (string)(HttpContext.Current.Items["key"]);

        context.Response.Clear();
        context.Response.ContentType = "application/pdf";
        context.Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);
        context.Response.TransmitFile(fileName);
        context.Response.End();
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }
}

the problem is filename is null after i assign the value to it . any advice to send data from view to httpcontext

Answer 1

您是否尝试过HttpContext.Current.Session["key"]或TempData["key"] ？