In the Kendo Grid Column there are filter already applied on the column which are as follows :
1.Is equal to
2.Is not equal to
3.Is greater than or equal to
4.Is greater than
5.Is less than or equal to
6.Is less than
7.Is Null
8.Is no null

I want to add another one which is “Is In List” into grid column

Kendo Grid as I wanted to apply “Is In List” filter to BankStatementId Column.

`  @helper BankStatementGrid()
{
    @(
    Html.Kendo().Grid<BankStatementRecon>()
    .Name("gridBankStatement")
    .Sortable()
    .Selectable(selectable => selectable.Mode(GridSelectionMode.Single).Type(GridSelectionType.Row))
    .Navigatable()
    .Scrollable()
    .Filterable()
    .Pageable(pageable => pageable
            .Refresh(true)
            .PageSizes(true)
            .ButtonCount(5)
            .PageSizes(new[] { "50", "500" }))
    .HtmlAttributes(new { style = "height:850px;" })
    .ToolBar(t =>
    {
        t.Custom().Text("Clear Filter").HtmlAttributes(new { id = "ClearFiltergridBS" });
        //PARA-5759 below Custom() tool bar
        t.Custom()
           .Text("Export to Excel")
           .HtmlAttributes(new { id = "export", style = "float:right" })
           .Url(Url.Action("ExportToExcel", "AccountingTransactions", new { filter = "~", sort = "~", IsReconciled = false, rptFlag = 0, exportFileName = "BankStatement" }));
    })
    .Editable(editable => editable.Mode(GridEditMode.InCell))
    .Events(e => e.DataBound("onDataBound").Edit("onEdit"))
    .DataSource(ds => ds
        .Ajax()
        .Events(e => e.Error("OnGridRequestError").RequestStart("HideErrorMessage"))
        .PageSize(50)
        .ServerOperation(true)
        .Sort(sort => sort.Add("Dated").Descending())
        .AutoSync(true)
        .Model(model =>
        {
            model.Field(p => p.BankStatementId).Editable(false);
            model.Field(p => p.Ledger).Editable(false);
            model.Field(p => p.Dated).Editable(false);
            model.Field(p => p.Description).Editable(false);
            model.Field(p => p.RefNumber).Editable(false);
            model.Field(p => p.BankAmount).Editable(false);
            model.Field(p => p.TxAmount).Editable(false);
            model.Field(p => p.Diff).Editable(false);
            model.Field(p => p.Ledger).Editable(false);
            model.Field(p => p.ReferenceId).Editable(false);
            model.Field(p => p.Information).Editable(false);
            model.Field(p => p.Result).Editable(false);
            model.Field(p => p.Comments).Editable(true);
            model.Id(p => p.BankStatementId);
        })
        .Read(r => r.Action("Read_OutstandingBankStatement", "AccountingTransactions"))
        .Update(u => u.Action("Update_OutstandingBankStatement", "AccountingTransactions"))
    )
    .Columns(columns =>
    {
        columns.Bound(l => l.BankStatementId).Title("StatementId");
        columns.Bound(l => l.Ledger).Filterable(f => f.Multi(true).Search(true).DataSource(source => source.Read(r => r.Action("GetBankLedgers", "AccountingTransactions"))));
        columns.Bound(l => l.Dated).Format("{0:MM/dd/yyyy}");
        columns.Bound(l => l.Description);
        columns.Bound(l => l.BankAmount).Format("{0:C}");
        columns.Bound(l => l.TxAmount).Format("{0:C}");
        columns.Bound(l => l.Diff).Format("{0:C}");
        columns.Bound(l => l.RefNumber).Title("Reference");
        columns.Bound(l => l.Result).Width("100px");
        columns.Bound(l => l.Information);
        columns.Bound(l => l.Comments);
        columns.Bound(l => l.ReferenceId);
    })
    .Resizable(resize => resize.Columns(true))
    .Reorderable(reorder => reorder.Columns(true))
    )
}`