Why is my DisplayFor not looping through my IEnumerable?

Question

I have this line in my view

@(Html.DisplayFor(m => m.DaysOfWeek, \"_CourseTableDayOfWeek\"))

where m.DaysOfWeek is a

Answer 1

It's not looping because you have specified a name for the display template as second argument of the DisplayFor helper (_CourseTableDayOfWeek).

It loops only when you rely on conventions i.e.

@Html.DisplayFor(m => m.DaysOfWeek)

and then inside ~/Views/Shared/DisplayTemplates/DateTime.cshtml:

@model DateTime
@{
    ViewBag.Title = "CourseTableDayOfWeek";
}

    @System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat.DayNames[(int) Model.DayOfWeek]
    Model.ToString("G")

Once you specify a custom name for the display template (either as second argument of the DisplayFor helper or as [UIHint] attribute) it will no longer loop for collection properties and the template will simply be passed the IEnumerable as model.

It's confusing but that's how it is. I don't like it either.