48 lines
1.7 KiB
C#
48 lines
1.7 KiB
C#
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#region CPL License
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/*
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Nuclex Framework
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Copyright (C) 2002-2009 Nuclex Development Labs
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This library is free software; you can redistribute it and/or
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modify it under the terms of the IBM Common Public License as
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published by the IBM Corporation; either version 1.0 of the
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License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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IBM Common Public License for more details.
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You should have received a copy of the IBM Common Public
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License along with this library
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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namespace Nuclex.Support.Collections {
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/// <summary>Interface for collections that can be observed</summary>
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/// <typeparam name="ItemType">Type of items managed in the collection</typeparam>
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interface IObservableCollection<ItemType> {
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/// <summary>Raised when an item has been added to the collection</summary>
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event EventHandler<ItemEventArgs<ItemType>> ItemAdded;
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/// <summary>Raised when an item is removed from the collection</summary>
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event EventHandler<ItemEventArgs<ItemType>> ItemRemoved;
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/// <summary>Raised when the collection is about to be cleared</summary>
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/// <remarks>
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/// This could be covered by calling ItemRemoved for each item currently
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/// contained in the collection, but it is often simpler and more efficient
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/// to process the clearing of the entire collection as a special operation.
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/// </remarks>
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event EventHandler Clearing;
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}
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} // namespace Nuclex.Support.Collections
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