searchfilters

 function onSearch()
{
  var q = $("#txtSearchString").val();
      var grid = $("#kGrid").data("kendoGrid");
      grid.dataSource.query({
        page:1,
        pageSize:20,
        filter:{
          logic:"or",
          filters:[
            {field:"CustomerID", operator:"contains",value:q},
            {field:"CompanyName", operator:"contains",value:q},
            {field:"ContactName", operator:"contains",value:q}
            ]
         }
      });
}