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Dictionary<TKey, TValue>.Enumerator.IDictionaryEnumerator.Key Property

Gets the key of the element at the current position of the enumerator.

Namespace:  System.Collections.Generic
Assembly:  mscorlib (in mscorlib.dll)

Object IDictionaryEnumerator.Key { get; }

Property Value

Type: System.Object
The key of the element in the dictionary at the current position of the enumerator.

Implements

IDictionaryEnumerator.Key

ExceptionCondition
InvalidOperationException

The enumerator is positioned before the first element of the collection or after the last element.

After an enumerator is created or after a Reset is called, MoveNext must be called to advance the enumerator to the first element of the collection before reading the value of Key; otherwise, Key is undefined.

Key also throws an exception if the last call to MoveNext returned false, which indicates the end of the collection.

Key returns the same object until MoveNext is called. MoveNext sets Key to the next element.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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