jquery - Can't modify tab index for kendo dropdown inside kendo grid -


i using asp.net mvc's editor template bind kendo dropdownlist inside kendo grid

the navigatable property(.navaigatable(o=>o.enabled(true))) of grid set true unable focus on dropdownlist when press tab i.e, focus lost particular cell.

i behavior can focus on dropdownlist , can change value up , down arrow keys.

thank you. appreciate help! :)

in editor template code below: 

    @(html.kendo().dropdownlistfor(m => m)                       .autobind(false)                           .datatextfield("text")                           .datavaluefield("value")                           .optionlabel("selecttype")                           .htmlattributes(new { @id = "seconddropdownname"})                           .datasource(datasource =>                            {                             datasource.read(read => read.action("actionname", "controllername")              .data("filterfunctionfordatapassing"))                             .serverfiltering(true);                         })                         .cascadefrom("firstdropdownname")                         .enable(false)                 )

and in main page kendo grid bound make 1 function passing first dropdown value : 

        function filterfunctionfordatapassing() {                 return {                     ddlvalue: $("#firstdropdownname").data("kendodropdownlist").value()                 };             }

now second drop down binding code: function should called change event of first drop down :

        function secondropdownfunction(e) {                          $.ajax({                        type: 'post',                        url: '@url.action("seconddropdownactionname", "controllername")',                        cache: false,                                        success: function (result) {                             if (json.stringify(result) != "[]") {                                 var ddl = $('#seconddropdownname').data("kendodropdownlist");                                 ddl.setdatasource(result);                                 ddl.refresh();                                                      }                                 }                     });                       }

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