internal void Sort(EntityComparer <T> comparer)
{
this.Sort(0, this.Count, comparer);
}
/// <summary>
/// Sort
/// </summary>
/// <param name="propertyNames">Sort Property List</param>
public void Sort(string[] propertyNames)
{
EntityComparer <T> comparer = new EntityComparer <T>(propertyNames);
this.Sort(comparer);
}