[Solved] Nullable boolean bug

[Sheryl Stoller]

I understand that the dropdown for true/false/not set is the default template for a nullable boolean value (as discussed here: http://www.telerik.com/community/forums/aspnet-mvc/grid/boolean-appears-as-dropdown-in-grid.aspx ) in the grid. however, i'm using pagination on this grid, and at first they appear with the dropdown, but on subsequent pages/httpposts they just say "true" and "false" with no dropdown.

The following is my code (the javascript at the bottom is to handle another lookup on the page - this grid is looking up vendors by facility).

      <% Html.Telerik().Grid(Model.LookupItems)
        .Name("VendorLookup")
       .ToolBar(toolBar =>
       {
           toolBar.Template(() =>
           { %>

                         Facility ID: <%=Html.TextBoxFor(model => model.FacilityID) %> <input type="button" onclick="rebind()" value="Submit" />

           <% });
       })

          .Columns(columns =>
          {
              columns.Bound(o => o.BaswareSupplierID);
              columns.Bound(o => o.SupplierName);
              columns.Bound(o => o.AccountNumber);
              columns.Bound(o => o.DepartmentNumber);
              columns.Bound(o => o.PurchaseOrderRequired);



          })
        .DataBinding(dataBinding =>
        {
            dataBinding.Ajax().Select("GetData", "VendorLookup");

        })
        .ClientEvents(events => events.OnDataBinding("onload"))
        .Scrollable(scrolling => scrolling.Enabled(false))
        .Sortable(sorting => sorting.Enabled(true))
        .Pageable(paging => paging.Enabled(true))
        .Filterable(filtering => filtering.Enabled(true))

        .Footer(true).Render();
%>

<script type="text/javascript" language="javascript">
    function rebind() {
        var facilityID = $("#FacilityID").val();
        $("#VendorLookup").data("tGrid").rebind({ FacilityID: facilityID });
    }

    function onload(args) {
        var facilityID = $("#FacilityID").val();
        args.data = $.extend(args.data, {FacilityID: facilityID});
    }

</script>

[Atanas Korchev]

Hello Sheryl Stoller,

 This is actually not a bug. You are using initially server binding which renders Html.DisplayFor (the dropdownlist). After ajax paging the display template no longer works - it renders as string true / false. We have documented this behavior albeit for regular boolean fields here.

All the best,
Atanas Korchev
the Telerik team