SelectList and multi-select items for ListBox

Question

Hi all,

I'm trying to show a ListBox with multi-selected values that come from the database. My plan is to build the selectlist in my controller, set the multi-select items in the SelectList then bind it to the ListBox as shown below:

Markup: 

<%= Html.ListBox("DaysOfWeek", Model.DaysOfWeek) %>


Controller:

model.ScheduledDays = getListFromDb( );  //ScheduledDays is CSV String (i.e "Mon", "Tue", etc)

string[] scheduledDays = model.ScheduledDays.Split(',');

model.DaysOfWeek is a SelectList of all the days of the week that gets bound to my Html.ListBox above.


for each day in scheduledDays
{
    for each item in model.DaysOfWeek (which is my listbox datasource)
    {
        see if item = day 
            if so set the item.Selected = true
    }
}

But for some reason this doesn't work. Any ideas?

thanks, rod