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Controller.Json Method (Object)

Creates a JsonResult object that serializes the specified object to JavaScript Object Notation (JSON).

Namespace:  System.Web.Mvc
Assembly:  System.Web.Mvc (in System.Web.Mvc.dll)

Syntax

'Declaration
Protected Friend Function Json ( _
    data As Object _
) As JsonResult
protected internal JsonResult Json(
    Object data
)
protected public:
JsonResult^ Json(
    Object^ data
)

Parameters

  • data
    Type: System.Object
    The JavaScript object graph to serialize.

Return Value

Type: System.Web.Mvc.JsonResult
The JSON result object that serializes the specified object to JSON format. The result object that is prepared by this method is written to the response by the MVC framework when the object is executed.

Remarks

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.

Examples

The following example shows how to send JSON-formatted data to the browser.

public ActionResult TestJson() {
    return View();
}

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult TestJson(int numDays) {

    int[] ix = new int[numDays];
    for (int i = 0; i < numDays; i++)
        ix[i] = i * 2;

    return Json(ix);
}
Public Function TestJson() As ActionResult 
    Return View() 
End Function 

<AcceptVerbs(HttpVerbs.Post)> _ 
Public Function TestJson(ByVal numDays As Integer) As ActionResult 
    
    Dim ix As Integer() = New Integer(numDays - 1) {} 
    For i As Integer = 0 To numDays - 1 
        ix(i) = i * 2 
    Next 
    
    Return Json(ix) 
End Function

See Also

Reference

Controller Class

Json Overload

System.Web.Mvc Namespace

SerializableAttribute