| Overload | Description | 
|---|---|
| AddOrUpdate(TKey,TValue,KeyValueUpdate<TKey,TValue>) | Adds a key/value pair to the IDictionary if the key does not already exist, or updates a key/value pair if the key already exists. | 
| AddOrUpdate(TKey,Converter<TKey,TValue>,KeyValueUpdate<TKey,TValue>) | Adds a key/value pair to the IDictionary if the key does not already exist, or updates a key/value pair if the key already exists. | 
| AddOrUpdate<T>(TKey,T) | Add, update, or fetche a key/value pair from the dictionary via an implementation of the ICreateOrUpdateValue<TKey,TValue> interface. | 
Target Platforms: Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7
 
     
     
     
     
    