

'宣言 Public Class TaskCollection Inherits C1.C1Schedule.BaseCollection(Of Task)
public class TaskCollection : C1.C1Schedule.BaseCollection<Task>
System.Object
   System.Collections.ObjectModel.Collection<T>
      System.Collections.ObjectModel.KeyedCollection<TKey,TItem>
         C1.C1Schedule.C1ObservableKeyedCollection<TKey,TItem>
            C1.C1Schedule.BaseCollection<T>
               C1.Win.GanttView.TaskCollection