IReadOnlyDictionary<TKey,TValue>.Item[TKey] Property
Definition
Important
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Gets the element that has the specified key in the read-only dictionary.
public:
property TValue default[TKey] { TValue get(TKey key); };public TValue this[TKey key] { get; }member this.Item('Key) : 'ValueDefault Public ReadOnly Property Item(key As TKey) As TValueParameters
- key
- TKey
The key to locate.
Property Value
The element that has the specified key in the read-only dictionary.
Exceptions
key is null.
The property is retrieved and key is not found.
Remarks
This property lets you access a specific element in the collection by using the following syntax: myCollection[key] (myCollection(key) in Visual Basic).
Implementations can vary in how they determine the equality of objects: for example, the class that implements IReadOnlyDictionary<TKey,TValue> might use the Comparer<T>.Default property, or it might implement the IComparer<T> method.
Implementations can vary in whether they allow key to be null.
