ASP.net MVC Controller Action - how to prevent redirect

Question

I have the following in my Action:

[AjaxException] 
public ActionResult DoSomething(sring someParam1, string someParam2) {

    //do whatever you need to do here, db etc
    return new EmptyResult();
}

in my html

<form id="search-frm" name="search-frm" action="@Url.Action("DoSomething", "MyActions")" method="post" >

    <input type="button" id="search-btn" value="search" class="btn" onclick="DoSomething();return false;" />
    <input type="text" name="param1" id="param1" />
    <input type="text" name="param2" id="param2" />
</form>

in my JS

function DoSomething() {  
   $("#search-frm").submit();
   return false;
}

When I click on the button, and after the controller action DoSomething is done, I get redirected to MyActions/DoSomething. Is there a way to not have that w/o using jquery $.ajax? I simply need to do something and not go away from the existing page.

Why not use AJAX? Seems like the perfect tool for what you are trying to achieve: submit a form and stay on the same page. I suspect that you have omitted some important details from your question. So please provide them. Currently here's how I interpret your question: How to watch take a photo without a camera?. Meaningless. — Darin Dimitrov
– Darin Dimitrov, Commented Jul 20, 2012 at 20:52
The meaningless dupe doesn't contain enough details in order to be answerable. You say that a normal controller action call takes 403ms and an AJAX call to the same action takes 3400ms which is pretty hilarious because an AJAX call is like a normal action call. I guess your measures are a bit off. — Darin Dimitrov
– Darin Dimitrov, Commented Jul 20, 2012 at 20:59

Shyju · Accepted Answer · 2012-07-20 21:10:32Z

4

because your code is so. When you click on the button you are calling the DoSomething javascript function and inside that you are submitting the form. So it is same as the normal form submit(clicking on the submit button to submit). that is the reason it is redirecting (actually being posted to DoSomething action.

If you do not want to navigate away from the current page, you may use ajax to do your posting and get result and stay in the same page. So i would make changes to your code like this

1) Get rid of the OnClick event binding from the HTML markup

2) Add this javascript which handles the form submit

$(function(){
  $("#search-frm").submit(e){

   e.preventDefault();  // prevent the default form posting. Let's stay here
   $.post("@Url.Action("DoSomething","MyActions")",$("#search-frm").serialize(), function(data){
          //do something with the response data 
   });

  });     
});

Not sure why return EmptyResult from the Action method. You may need to return some valid response which indicates the status of the Action you are trying to perform.

[HttpPost]
public ActionResult DoSomething(string param1,string param2)
{
  //do something 
   return Json(new 
             { Status= true,
               Message="Succesfully saved"
             });      
}

You may keep a generic ViewModel to return such results and use that, instead of dynamically typing like above.

public class OperationStatus
{
  public bool Status  { set;get;}
  public string Message { set;get;}
}

and in your action method

[HttpPost]
public ActionResult DoSomething(string param1,string param2)
{
  //do something 
  var res=new OperationStatus();
  res.Status=true;
  res.Message="Successfully Added";
   return Json(res);      
}

edited Jul 20, 2012 at 21:10

answered Jul 20, 2012 at 20:57

Shyju

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4 Comments

sarsnake Over a year ago

how about not using $.ajax at all?

Shyju Over a year ago

$.post is a short form of $.ajax with Action method type as POST. I think that is enough for this scenario. You may also use that as well.

rutruth Over a year ago

How can one evaluate the JSON response on the client ?

Shyju Over a year ago

Please post it as a seperate question with the JSON format you are receiving

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