Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property

Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property in DotNet with jquery or AngularJS.

write your action method as below

[HttpGet]
        public ContentResult LoadBackDoorCustomers()
        {
            var data = adminService.ListBackDoorCustomers();
            var json = JsonConvert.SerializeObject(data);
            //return Json(new { success = true, data = json }, JsonRequestBehavior.AllowGet);

            var result = new ContentResult
            {
                Content = json,
                ContentType = "application/json"
            };
            return result;
        }

angularjs Call

$scope.listBackDoorCustomers = function () {
        $http({
            method: 'GET',
            url: '/Customer/LoadBackDoorCustomers',
            dataType: 'json',
        }).then(function (response) {
            $scope.gridOptions.data = response.data;
        }, function (error) {

        });
    }

web.config changes

  <system.web.extensions>
    <scripting>
      <webServices>
        <jsonSerialization maxJsonLength="2147483647"/>
      </webServices>
    </scripting>
  </system.web.extensions>