title: e.slice is not a function error in ASP.NET MVC with Kendo UI
body: <p>I am working on asp.net MVC with Kendo UI grid.
  I am getting the information from a method and give it to the grid. and I have in toolbar a datepicker so when I pick a new date the code will go to the method refilter the LINQ then I received a new list. </p>
  
  <p>I wrote this code: </p>
  
  <pre><code>public ActionResult Grid_ReadLogAdminList([DataSourceRequest] DataSourceRequest request,[Bind(Prefix = "id")] string date)
          {
  
  //both the date and  result is correct always
              var jsonResult = Json(result, JsonRequestBehavior.AllowGet);
              jsonResult.MaxJsonLength = int.MaxValue;
              return jsonResult;
  
          }
  </code></pre>
  
  <p>and here is the javascript when I change the datepicker:</p>
  
  <pre><code>function filterDate()
      {
  $("#LogAdminGrid").kendoGrid({
              dataSource: {
                  transport: {
                      read: {
                          url: '/LogAdmin/Grid_ReadLogAdminList/',
                          type: 'get',
                          dataType: 'json',
                          data: {
                              id: kendo.toString($("#datepicker").data("kendoDatePicker").value(), "dd.MM.yyyy")
                          }
                      }
                  }
              }
          });
  }
  </code></pre>
  
  <p>everything is correct and I can access the method correctly. but after the return of the method after the filter I receive and error: </p>
  
  <blockquote>
    <p>kendo.all.js:6599 Uncaught TypeError: e.slice is not a function</p>
  </blockquote>
  
  <p>I don't know why and how to solve it. please if you can help me with it?</p>