发送消息的最佳做法是什么

Question

The objective:

Call an action and show a message for display the result "success/error",

The Problem:

Actually, I know how to do this using JQuery, but I don't know if that's the best way,

?? I would like to know if it could be better doing all of these from server side, I mean call only an ActionLink and then execute a javascript or return a message from server.

The Code: MVC3 C#

View:

    $('#btnValidate')
        .click(function(e) {
         $.ajax({
            url: "/Valoration/ValidateHvm" ,
            type: "POST",
            success: function(data, status, xhr) {
                           if(data.success){
                                 alert('success');
                           }else{ 
                                 alert('error');
                      },
            error: function(xhr, status, err) {
                alert('error');
            }
        });

     });

Controller:

[HttpPost]
    public ActionResult ValidateHvm()
    {
        var result = HvmService.ValidateProject;
        return Json(new { success = result});
    }

Answer 1

There is nothing wrong with your implementation, it seems the best way to me, but another way is you can use ModelState.AddModelError() if you wish but your actionresult will need to redisplay the view with the model

So you post will accept the model

[HttpPost]
public ActionResult ValidateHvm(ValidateModel model)
{
    var result = HvmService.ValidateProject(model);

    if(result == false){ //or whatever

       ModelState.AddModelError("","Error");

    }


        return View("MyView", model)
}