asp.net mvc - Searching/Filtering on All Columns in KendoUI Grid using DropdownlistFor -


i trying filter/search kendoui grid using custom dropdownlist. have been able result on singe column filtering if try add new dropdownlist filtering grid can't required result. problem logic operator , it's different values. correct way ? or other suggestions?

i add here images more description , hope me please. thanks

html dropdowns :

<html>     <div class="form-group col-md-2" style="margin-bottom:0px;">                 @html.label("media", htmlattributes: (new { @class = "col-sm-4 control-label" }))                 <div class="col-sm-8" style="float:none;">                       @html.dropdownlistfor(model => model.mediatypeid, (viewdata["media"] selectlist), "select media", new { @class = "form-control btnregister chosen-select", onchange = "changes_dropdown(this.id)", data_placeholder = "select media", style = "border-bottom:none;border-radius:0px;" })              @*   @html.validationmessagefor(model => model.mediatypeid, "", new { @class = "text-danger" })*@         </div>     </div>      <div class="form-group col-md-2" style="margin-bottom:0px;">         @html.label("outlet", htmlattributes: (new { @class = "col-sm-4 control-label" }))         <div class="col-sm-8" style="float:none;">              @html.dropdownlistfor(model => model.channel, (viewdata["company"] selectlist), "select channel", new { @class = "form-control btnregister chosen-select", onchange = "changes_dropdown(this.id)", data_placeholder = "select channel", style = "border-bottom:none;border-radius:0px;" })             @html.validationmessagefor(model => model.channel, "", new { @class = "text-danger" })         </div>     </div>     <div class="form-group col-md-2" style="margin-bottom:0px;">         @html.label("start date", htmlattributes: (new { @class = "col-sm-6 control-label" }))         <div class="col-sm-6" style="float:none;">             @html.dropdownlistfor(model => model.entrydate, (viewdata["entrydate"] selectlist), "select date", new { @class = "form-control btnregister chosen-select", onchange = "changes_dropdown(this.id)", data_placeholder = "select date", style = "border-bottom:none;border-radius:0px;", id = "startdate" })             @html.validationmessagefor(model => model.entrydate, "", new { @class = "text-danger" })         </div>     </div> </html>

javascript function , filltering:

<script type="text/javascript">     function changes_dropdown(fieldid)     {         var fieldvalue = document.getelementbyid(fieldid).value;               $("#grid").data("kendogrid").datasource.filter({                  logic: "and",                  filters: [                     {                         field: fieldid,                         operator: "contains",                         value: fieldvalue                     }                 ]             });     } </script>

at first don't need pass id of current field changes_dropdown function. instead can use onchange = "changes_dropdown() , inside function use var fieldvalue = this.value

also when define single filter don't need specify logic between predicates (http://docs.telerik.com/kendo-ui/api/javascript/data/datasource#configuration-filter):

$("#grid").data("kendogrid").datasource.filter({   filters: [     {       field: fieldid,       operator: "contains",       value: fieldvalue     }   ] });

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