Dictionary<TKey, TValue>.Enumerator.IDictionaryEnumerator.Key Property
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Gets the key of the element at the current position of the enumerator.
Namespace: System.Collections.Generic
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Private ReadOnly Property Key As Object
Implements IDictionaryEnumerator.Key
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
Exceptions
| Exception | Condition |
|---|---|
| InvalidOperationException | The enumerator is positioned before the first element of the collection or after the last element. |
Remarks
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.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.