json - How to bind a Kendo grid to a dynamic datatable -

i working kendo+razor , want create kendo grid not have specific data model (in case, have show results of sql query, entered user, result can have number/type of columns). make generic tried bind grid system.data.datatable , ajax call populate grid. works fine when loaded first time, when repopulate same grid, not update column names.

scenario:
ajax call made on button click populate grid query results. on first ajax call result json attributes id, name, , description. grid showed correct data 3 above mentioned columns , 4 rows.
on second ajax call response json contains attributes username, usertype, address, phonenumber, time grid not update model binding , columns remain previous 3 columns id, name, , description number of rows gets updated no data in (as columns not present in returned json)

i want rebind columns returned json attributes can differ every time.

here html code:

@model system.data.datatable <div> @(html.kendo().grid(model) .name("resultsgrid")  .tablehtmlattributes(new { class = "kendogrid" }) ) </div> 

and javascript on button click code:

function execute() {  $.ajax({  url: "something something",  type: "get",  contenttype: "application/json;charset=utf-8",  data: "",  datatype: "json",  success: function (data) {         $("#resultsgrid").kendogrid({               scrollable: false,               pageable: true,               sortable: true,               resizable: true,               datasource: {                         data: data,                         pagesize: 5                     }                 });  } } 

how can refresh grid bind columns new json attributes?

you first need destroy old grid , create new one:

success: function(data) {     // reference grid instance     var grid = $("#resultsgrid").data("kendogrid");     // destroy     grid.destroy();     $("#resultsgrid")         .empty() // clear old html         .kendogrid( {            datasource: {               data: data,               pagesize: 5            }         });  }