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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.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

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