IImmutableDictionary<TKey,TValue>.Add(TKey, TValue) Method
Definition
Important
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Adds an element with the specified key and value to the dictionary.
public:
System::Collections::Immutable::IImmutableDictionary<TKey, TValue> ^ Add(TKey key, TValue value);public System.Collections.Immutable.IImmutableDictionary<TKey,TValue> Add (TKey key, TValue value);abstract member Add : 'Key * 'Value -> System.Collections.Immutable.IImmutableDictionary<'Key, 'Value>Public Function Add (key As TKey, value As TValue) As IImmutableDictionary(Of TKey, TValue)Parameters
- key
- TKey
The key of the element to add.
- value
- TValue
The value of the element to add.
Returns
A new immutable dictionary that contains the additional key/value pair.
Exceptions
The given key already exists in the dictionary but has a different value.
Remarks
If the given key/value pair already exists in the dictionary, this method returns the existing instance of the dictionary.
