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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)

protected internal 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 ASP.NET MVC framework when the object is executed.

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 ASP.NET MVC framework when the object is executed.

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);
}
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