Populating multiselect list with data MVC 3 .NET

[jordy-jk]

I have been searching a lot on Google and Stackoverflow for soltuions on how to Populate a Multiselect box with values that can be selected. But no luck.\[code\]public class PriceObj{ public int ID { get; set; } public decimal Price { get; set; } public string Name { get; set; } public string Description { get; set; } public virtual ICollection<PriceGroupObj> PriceGroup {get; set;}}public class PriceGroupObj{ public int ID { get; set; } public string Name { get; set; }}public class PriceDatabaseContext : DbContext{ public DbSet<PriceObj> PriceObjs { get; set; } public DbSet<PriceGroupObj> PriceGroupObjs { get; set; } protected override void OnModelCreating(DbModelBuilder modelBuilder) { base.OnModelCreating(modelBuilder); modelBuilder.Conventions.Remove<System.Data.Entity.ModelConfiguration.Conventions.PluralizingTableNameConvention>(); modelBuilder.Entity<PriceObj>() .HasMany(g => g.PriceGroup) .WithMany() .Map(t => t.MapLeftKey("GroupID").MapRightKey("PriceID").ToTable("PriceGroup")); }}\[/code\]Then I want in to be able to choose all appropriated price groups for a price in the edit view of the price objects. But I do not get it working, it is not populating all the already created groups in the MultiSelect box.This is the code I am using in the Razor veiw:\[code\]@Html.ListBoxFor(model => model.PriceGroup, Model.PriceGroup.Select(pg => new SelectListItem { Text = pg.Name, Value = http://stackoverflow.com/questions/12599470/pg.ID.ToString() }), new { Multiple ="multiple" })\[/code\]The select element shows up on the website, but no values are to select from.Please help me sort out, where my chain is falling of.