Dictionary<TKey, TValue>.Enumerator.IDictionaryEnumerator.Key Property
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Gets the key of the element at the current position of the enumerator.
Assembly: mscorlib (in mscorlib.dll)
Property Value
Type: System.ObjectThe key of the element in the dictionary at the current position of the enumerator.
Implements
IDictionaryEnumerator.Key| Exception | Condition |
|---|---|
| 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.