I was wanting to create a multiselect filter inside the kendo grid that will filter an array column, NOT a simple string column. Just adding the .Filterable(ftb => ftb.Multi(true)) does display a basic 'multiselect' with just checkboxes in it, which is not ideal , but does work. But, when you click filter, the grid becomes empty. I had to use a clienttemplate() function, to return an html object like so:
export function MultiRowTemplate(data) { if (data == null) { return ""; } var row = ""; for (var i = 0, len = data.length; i < len; i++) { row += data[i].Description + "<br/>"; } return row; }
My column is:
columns.ForeignKey(a => a.DisplayExp, (System.Collections.IEnumerable)ViewData["Exp"], "Id", "Description").ClientTemplate("#= MultiRowTemplate(data.DisplayExp) #").Filterable(ftb => ftb.Multi(true)).Title("Experience");
the code for the foreign key doesn't make much sense as it's an array column, but that was pointed to by telerik support on other forum posts.
So, there must be a way to hook into that column and run some custom code to return to the grid the filtered values? i've seen examples for jquery, and mvc, but theres nothing for .net core. This should just work out of the box, as I don't think this is an uncommon need. Could you give me an example or point me in the right direction?
