use Json in .net MVC model

Question

I'm refactoring my code and moving business logic from the controller to the model, but it seems that Json functionalities are not available in the model. It is so strange that I'm sure it's me that I'm missing something.

In the controller I can do

var myList = (from myItem in db.MyModel
              where (myItem.code == "somecode") 
              select myItem);
JsonResult jList = Json(myList);

As I move this code into the model I have an error on line

JsonResult jList = Json(myList);

saying that "The name 'Json' does not exist in the current context.

I have the same using statements in both model and controller, (System.Web.Mvc should be the one for Json functionality) and by right clicking Json i do not have the "resolve" option.

What am I missing?

Craig W. · Accepted Answer · 2014-04-25 17:47:57Z

1

As was pointed out the Json(myList) call you're making is to a method on the base controller class. As you're no longer executing that code in a class that derives from Controller the method is no longer available.

However, that method is just a convenience wrapper around the creation of a JsonResult. To replicate the functionality outside of a controller you can use:

JsonResult jsonResult = new JsonResult()
{
    Data = data,
    JsonRequestBehavior = JsonRequestBehavior.DenyGet
};
return jsonResult;

answered Apr 25, 2014 at 17:47

Craig W.

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1 Comment

kranz Over a year ago

Thank you, it is exactely what I needed.

Erik Philips · Accepted Answer · 2014-04-25 18:58:36Z

1

In this case Json() is the method of Controller base class.

You can try using JSON.Net, or some other serialilzer.

edited Apr 25, 2014 at 18:58

Erik Philips

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answered Apr 25, 2014 at 17:28

Floremin

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2 Comments

kranz Over a year ago

Thanks for the suggestion, anyway I prefer to go with Craig W, this way I do not need to link another library.

Floremin Over a year ago

If you don't want to add another library, you can use built-in JavaScriptSerializer class: msdn.microsoft.com/en-us/library/… My understanding is that's what's used for JsonResult.

Tony · Accepted Answer · 2017-02-07 19:48:00Z

0

Make sure your controller inherits from the Controller abstract class. This code snippet is from my base api controller but it will be the same theory (ApiController => Controller)

public class BaseApiController : ApiController
{
    public Code.CodeService CodeService { get; set; }

    /// <summary>
    /// Constructs the Base Controller and sets up the global properties that need to  be accessible by other Controllers.
    /// </summary>
    public BaseApiController()
    {
        CodeService = new Code.CodeService();
    }

}

answered Feb 7, 2017 at 19:48

Tony

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