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CollectionExtensionsGetOrAddTKey, TValue(IDictionaryTKey, TValue, TKey, FuncTKey, TValue) Method
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Namespace: GSF.CollectionsAssembly: GSF.Core (in GSF.Core.dll) Version: 2.4.218-beta+101eee949414e414795e55a6e73d88938f0177b8
Syntax public static TValue GetOrAdd<TKey, TValue>(
this IDictionary<TKey, TValue> dictionary,
TKey key,
Func<TKey, TValue> valueFactory
)
<ExtensionAttribute>
Public Shared Function GetOrAdd(Of TKey, TValue) (
dictionary As IDictionary(Of TKey, TValue),
key As TKey,
valueFactory As Func(Of TKey, TValue)
) As TValue
public:
[ExtensionAttribute]
generic<typename TKey, typename TValue>
static TValue GetOrAdd(
IDictionary<TKey, TValue>^ dictionary,
TKey key,
Func<TKey, TValue>^ valueFactory
)
JavaScript does not support generic types or methods.
View SourceParameters
- dictionary IDictionaryTKey, TValue
- The dictionary to add the key/value pair to if the key does not already exist.
- key TKey
- The key to be added to the dictionary if it does not already exist.
- valueFactory FuncTKey, TValue
- The function used to generate a value for the key.
Type Parameters
- TKey
- The type of the keys in the dictionary.
- TValue
- The type of the values in the dictionary.
Return Value
TValueThe value of the key in the dictionary.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
IDictionaryTKey,
TValue. When you use instance method syntax to call this method, omit the first parameter. For more information, see
Extension Methods (Visual Basic) or
Extension Methods (C# Programming Guide).
See Also