如何将 ObjectResult 转换为 JsonResult？

Question

public JsonResult Get(){    DBEntities db = new DBEntities();    var result = db.GetMenuMaster();    //Convert result to Json}我们需要将我们从数据库中得到的结果集转换为 json，然后才能在 javascript 和 Angularjs 中使用。

Answer 1

public JsonResult Get()

{

  DBEntities db = new DBEntities();

  var result = db.GetMenuMaster();

  return new JsonResult() { Data = result, JsonRequestBehavior = JsonRequestBehavior.AllowGet };

}

Answer 2

使用也可以试试这个：-

  return Json(new { result }, JsonRequestBehavior.AllowGet);

Answer 3

优化：

[HttpGet]

    public ActionResult Get()

    {

        DBEntities db = new DBEntities();

        var result = db.GetMenuMaster();

        return new JsonResult

        {

            Data = result,

            ContentEncoding = Encoding.UTF8,

            ContentType = "application/json",

            MaxJsonLength  = int.MaxValue,

            JsonRequestBehavior = JsonRequestBehavior.AllowGet

        };

    }