KGy SOFT Core Libraries Help
Thread
Adds a key/value pair to the ThreadSafeDictionaryTKey, TValue if the key does not already exist, and returns either the added or the existing value.
Definition
Namespace: KGySoft.Collections
Assembly: KGySoft.CoreLibraries (in KGySoft.CoreLibraries.dll) Version: 10.0.0
The value for the key. This will be either the existing value for the key if the key is already in the dictionary, or the specified addValue if the key was not in the dictionary.
Assembly: KGySoft.CoreLibraries (in KGySoft.CoreLibraries.dll) Version: 10.0.0
C#
public TValue GetOrAdd(
TKey key,
TValue addValue
)VB
Public Function GetOrAdd (
key As TKey,
addValue As TValue
) As TValueC++
public:
TValue GetOrAdd(
TKey key,
TValue addValue
)F#
member GetOrAdd :
key : 'TKey *
addValue : 'TValue -> 'TValue Parameters
- key TKey
- The key of the element to add or whose value should be returned.
- addValue TValue
- The value to be added, if the key does not already exist.
Return Value
TValueThe value for the key. This will be either the existing value for the key if the key is already in the dictionary, or the specified addValue if the key was not in the dictionary.
Exceptions
| ArgumentNullException | key is . |