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'宣言 Public NotInheritable Class ListColumnCollection Inherits System.Collections.ObjectModel.ObservableCollection(Of ListColumn)
public sealed class ListColumnCollection : System.Collections.ObjectModel.ObservableCollection<ListColumn>
System.Object
System.Collections.ObjectModel.Collection<T>
System.Collections.ObjectModel.ObservableCollection<T>
GrapeCity.Wpf.SpreadSheet.CellType.Editors.ListColumnCollection