Creates a JsonResult object that serializes the specified object to JavaScript Object Notation (JSON) format using the specified content type and JSON request behavior.
Namespace:  System.Web.Mvc
Assembly:  System.Web.Mvc (in System.Web.Mvc.dll)
Syntax
'Declaration
Protected Friend Function Json ( _
    data As Object, _
    contentType As String, _
    behavior As JsonRequestBehavior _
) As JsonResult
protected internal JsonResult Json(
    Object data,
    string contentType,
    JsonRequestBehavior behavior
)
protected public:
JsonResult^ Json(
    Object^ data, 
    String^ contentType, 
    JsonRequestBehavior behavior
)
Parameters
- data
 Type: System.Object
 The JavaScript object graph to serialize.
- contentType
 Type: System.String
 The content type (MIME type).
- behavior
 Type: System.Web.Mvc.JsonRequestBehavior
 The JSON request behavior
Return Value
Type: System.Web.Mvc.JsonResult
The result object that serializes the specified object to JSON format.
Remarks
The data in the data parameter must be serializable. The JavaScriptSerializer class is used to serialize the object. The result object that is prepared by this method is written to the response by the MVC framework when the object is executed.