78 lines
2.7 KiB
C#
78 lines
2.7 KiB
C#
// ==++==
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// ==--==
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//============================================================
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//
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// Interface: IList
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//
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// Purpose: Base interface for all Lists.
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//
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//===========================================================
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namespace System.Collections
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{
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using System;
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// An IList is an ordered collection of objects. The exact ordering
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// is up to the implementation of the list, ranging from a sorted
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// order to insertion order.
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//| <include path='docs/doc[@for="IList"]/*' />
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public interface IList : ICollection
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{
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// The Item property provides methods to read and edit entries in the List.
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//| <include path='docs/doc[@for="IList.this"]/*' />
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Object this[int index] {
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get;
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set;
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}
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// Adds an item to the list. The exact position in the list is
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// implementation-dependent, so while ArrayList may always insert
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// in the last available location, a SortedList most likely would not.
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// The return value is the position the new element was inserted in.
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//| <include path='docs/doc[@for="IList.Add"]/*' />
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int Add(Object value);
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// Returns whether the list contains a particular item.
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//| <include path='docs/doc[@for="IList.Contains"]/*' />
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bool Contains(Object value);
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// Removes all items from the list.
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//| <include path='docs/doc[@for="IList.Clear"]/*' />
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void Clear();
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//| <include path='docs/doc[@for="IList.IsReadOnly"]/*' />
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bool IsReadOnly
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{ get; }
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//| <include path='docs/doc[@for="IList.IsFixedSize"]/*' />
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bool IsFixedSize
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{
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get;
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}
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// Returns the index of a particular item, if it is in the list.
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// Returns -1 if the item isn't in the list.
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//| <include path='docs/doc[@for="IList.IndexOf"]/*' />
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int IndexOf(Object value);
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// Inserts value into the list at position index.
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// index must be non-negative and less than or equal to the
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// number of elements in the list. If index equals the number
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// of items in the list, then value is appended to the end.
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//| <include path='docs/doc[@for="IList.Insert"]/*' />
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void Insert(int index, Object value);
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// Removes an item from the list.
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//| <include path='docs/doc[@for="IList.Remove"]/*' />
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void Remove(Object value);
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// Removes the item at position index.
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//| <include path='docs/doc[@for="IList.RemoveAt"]/*' />
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void RemoveAt(int index);
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}
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}
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