'宣言 Public MustInherit Class C1CursorDataCollection (Of T As Class, K) Inherits C1DataCollectionBase(Of T) Implements IDataCollection(Of T), ISupportConnection, ISupportEditing(Of T), ISupportFiltering, ISupportIncrementalLoading, ISupportIndexing(Of T), ISupportRefreshing, ISupportSorting, ISupportVirtualization
public abstract class C1CursorDataCollection<T,K> : C1DataCollectionBase<T>, IDataCollection<T>, ISupportConnection, ISupportEditing<T>, ISupportFiltering, ISupportIncrementalLoading, ISupportIndexing<T>, ISupportRefreshing, ISupportSorting, ISupportVirtualization where T: class