I'm attempting to set the filter on some of my columns to Multi, just like the demo at https://demos.telerik.com/aspnet-mvc/grid/filter-multi-checkboxes shows.
I have tried it with and without an ItemTemplate, with and without Search, with and without a BindTo, and just about anything else I can think of. The filter only ever shows a text box with the button opening a dropdown for equals/contains/starts with/etc, never the checkboxes expected.
I'm using version 2017.3.1026.
Why does this not work like the demo?
c.Bound(e => e.Race) .Width(275).Filterable(f => f.Multi(
c.Bound(e => e.Ethnicity).Width(225).Filterable(f => f.Multi(
// other columns
.Filterable(f => f.Mode(GridFilterMode.Row))
.DataSource(d => d
.Model(m => m.Id(r => r.ID))
.Read(r => r.Action(
// Actual names replaced with placeholder