Kendo Grid Refresh Datasource and Rebind

Refresh Datasource of Kendo Grid If Server side event is off.

 function UpdateUPGridSource(RoleID) {

            var grdUP = $("#grdUserPermission").data("kendoGrid");
            //Set url property of the grid data source
            grdUP.dataSource.transport.options.read.url = '/Users/UserPermission/GetModuleParentIDList?inUserID=' + RoleID;
            //Read data source to update
            grdUP.dataSource.read();
   }

Refresh Datasource of Kendo Grid If Server side event is on Then Just need to do :

$('#grdUserPermission').data("kendoGrid").dataSource.read();
Change Page Index of Kendo Grid with Javascript

grid.dataSource.query({ page: 3, pageSize: 20 });

or

grid.dataSource.page(3);