[HttpGet] 
 public ActionResult Index()
 {
    ViewBag.Message = "Message";
    return View();
 }

 [HttpPost]
 public ActionResult Index(decimal a,decimal b,string operation)
 {
     ViewBag.Message = "Calculation Result:";
     ViewBag.Result = Calculation.Execute(a,b,operation);
     return View();
 }

在MVC视图中，如何确定视图是否为http get或http post？

在意见中是IsPost

@{
     var Message="";
     if(IsPost)
      {
            Message ="This is from the postback";
      }
       else
    {
            Message="This is without postback";
    }
}