private async Task <SortedList <string, List <string> > > makeInfoListFromRentableCars(Rentals_DB_BusinessEntities dBase)
{
SortedList <string, List <string> > populatedList = new SortedList <string, List <string> >();
await Task.Run(() =>
{
foreach (var car in dBase.Vehicles)
{
if (Rentable(car))
{
string make = car.Vehicle_Types.Vehicle_Makes.Make_Name;
string model = car.Vehicle_Types.Vehicle_Models.Model_Name;
List <string> models;
if (!populatedList.ContainsKey(make))
{
models = new List <string>();
models.Add(model);
populatedList.Add(make, models);
}
else
{
foreach (KeyValuePair <string, List <string> > item in populatedList)
{
if (item.Key.Equals(make) && !item.Value.Contains(model))
{
item.Value.Add(model);
}
}
}
}
}
});
return(populatedList);
}
