Question

39

How to call a Controller method from javascript in MVC3?

rated 0 times [ 46] [ 7] / answers: 1 / hits: 48644 / 12 Years ago, wed, july 25, 2012, 12:00:00

Im using MVC3 architecture, c#.net. I need to compare text box content(User ID) with the database immediately when focus changes to the next field i.e., Password field. So I thought to use onblur event to the User Id field which then calls the Controller method. Can any tell me how to approach to this problem? As Im a newbie, code snippets are highly appreciated.

Thanks in Advance,

Prashanth

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

dawnc

Add To Favorites

Follow

Total Points: 612

Total Questions: 94

Total Answers: 98

Location: Sweden

Member since Fri, Apr 16, 2021

3 Years ago

answered 12 Years ago cadendericki · Accepted Answer

Here is an example.
Example of your Controller Method

[HttpPost] // can be HttpGet

public ActionResult Test(string id)

{

     bool isValid = yourcheckmethod(); //.. check

     var obj = new {

          valid = isValid

     };

     return Json(obj);

}

and this would be your javascript function.

function checkValidId(checkId)

{

    $.ajax({

         url: 'controllerName/Test',

         type: 'POST',

         contentType: 'application/json;',

         data: JSON.stringify({ id: checkId }),

         success: function (valid)

         {

              if(valid) { 

                  //show that id is valid 

              } else { 

                  //show that id is not valid 

              }

         }

    });

}