I am trying to sort alphabetically string values inside the multi filter combobox in Kendo Grid to filter. Now it shows randomly there is no any order in mvc. Here is the code

columns.Bound(c => c.EmpName).Title("Employee Name")
.Filterable(filterable => filterable
.Multi(true)

<div>
                            @(Html.Kendo().Grid<FourCSQL.ContractorPortal.Model.Custom.WorkRequest.WorkRequestModel>()
                                .Name("gridTestrequest")
                                .Columns(columns =>
                                {
                                    columns.Bound(c => c.TestName).Title(ResourceManagerClass.GetResource("CarTest", languageID)).Width(200);
                                    columns.Bound(c => c.TestDescription).Title(ResourceManagerClass.GetResource("Car Description", languageID)).Width(460);
                                    columns.Bound(c => c.TestToComplete).Title(ResourceManagerClass.GetResource("Car Test to complete", languageID)).Width(150);
                                    columns.Bound(c => c.TestPriority).Title(ResourceManagerClass.GetResource("Carpriority", languageID)).Width(180);
                                    columns.Bound(c => c.TestCode).Title(ResourceManagerClass.GetResource("CarTestCode", languageID)).Width(200);
                                    columns.Bound(c => c.TestDepartment).Title(ResourceManagerClass.GetResource("Cardepartment", languageID)).Width(180);
                                    columns.Bound(c => c.TestLocation).Title(ResourceManagerClass.GetResource("CarLocation Description", languageID)).Width(240);
                                    columns.Bound(c => c.LocationDescription).Title(ResourceManagerClass.GetResource("Asset", languageID)).Width(240);
                                    columns.Bound(c => c.WorkDescription).Title(ResourceManagerClass.GetResource("Work ", languageID)).Width(180);
                                    columns.Bound(c => c.TestStatus).Title(ResourceManagerClass.GetResource("Status", languageID)).Width(180);
                                    columns.Bound(c => c.TestStore).Title(ResourceManagerClass.GetResource("Store", languageID)).Width(180).Hidden(true).Exportable(true);
                                })

            .ToolBar(toolBar =>
                        toolBar.Template("<a class='k-button k-button-icontext k-grid-excel btn btn-secondary btn-custom' style='float:right;margin-                      right:12px;color:white;' href='#'><span class='k-icon k-i-excel' style='margin-top:-1px;'></span>Export</a> "))
                .Excel(excel => excel
                .FileName("workrequest.xlsx")
                .Filterable(true).AllPages(true)
                .ProxyURL(Url.Action("AdminList", "Admin", new { @requestType = @ViewBag.RequestType }))
            )
        .Scrollable(scr => scr.Height(230))
        .Selectable(selectable => selectable.Mode(GridSelectionMode.Single).Type(GridSelectionType.Row))
        .Pageable(pageable => pageable.Refresh(false).PageSizes(true).ButtonCount(1))
        .Sortable()
        .Filterable(f => f.Extra(false)
        .Operators(op => { op.ForString(str => { str.Clear().Contains("Contains"); }); })
        .Messages(m => m.Info("Items with value contains:")))
        .DataSource(dataSource => dataSource.Ajax().Read(read => read.Action("AdminList", "Admin", new { @requestType = "pending" })))
        .Resizable(resize => resize.Columns(true))
        .Reorderable(reorderable => reorderable.Columns(true))
        .Events(events => events.ColumnReorder("saveColumnReorder").ColumnResize("saveColumnSize"))
        .HtmlAttributes(new { @class="KendoGrid"})
         )

</div>

1.How We can Export the Hidden columns in Excel...?

2. In the grid has one columns values like this  the user is seeing like this (volvo, benz, Audi, BMW, I20, MG,) But When user clicks on the Excel So we want show ('30lakhs',  '1crore' , '80lakhs', '30lakhs', '50lakhs')

So How We can do this I have not found any link anyone can you please help me out to find for this solution.

Thanks& Regards