OnPropertyChanged with a List

Question

I have a data grid in a view that is bound to a List in a viewmodel. I have a lot of data to retrieve for the list, so I want to break it up into many small retrievals inst

Answer 1

Have you tried using an ObservableCollection<T> rather than a List<T>

I assume you have a public property called Cars similar to...

public List<Car> Cars{

   get { return this._cars;}
   set
   {
      this._cars = value;
      base.OnPropertyChanged("Cars");
   }

}

If not this will not actually do anything...base.OnPropertyChanged("Cars");

Extension Method AddRange for ObservableCollection

public static class Extensions
{
    public static void AddRange(this ObservableCollection obj, List<T> items)
    {
        foreach (var item in items)
          obj.Add(item);
    }
}