ASP.NET MVC dropdownlist not selecting value on render

Question

I have this annoying problem where my DropDownlist doesn\'t select the current value by default.

Controller:

var YearsCycling = new SelectList(new Li         


        

Answer 1

Just ensure that the variable name set on ViewBag is different to the name assigned to the dropdownlist - i.e. don't do:

Controller:

ViewBag.CityId = new SelectList(....)

View:

@Html.DropDownList("CityId", ...

Just use a different viewbag variable name.

I've had problems when using the same ViewBag variable name as a html control name with drop down lists and listboxes.