Method AddOrUpdate

AddOrUpdate(TKey, TValue, KeyValueUpdate<TKey, TValue>)

Adds a key/value pair to the System.Collections.Generic.IDictionary<TKey, TValue> if the key does not already exist, or updates a key/value pair if the key already exists.

Declaration
public TValue AddOrUpdate(TKey key, TValue addValue, KeyValueUpdate<TKey, TValue> fnUpdate)
Parameters
Type Name Description
TKey key
TValue addValue
KeyValueUpdate<TKey, TValue> fnUpdate
Returns
Type Description
TValue

AddOrUpdate(TKey, Func<TKey, TValue>, KeyValueUpdate<TKey, TValue>)

Adds a key/value pair to the System.Collections.Generic.IDictionary<TKey, TValue> if the key does not already exist, or updates a key/value pair if the key already exists.

Declaration
public TValue AddOrUpdate(TKey key, Func<TKey, TValue> fnCreate, KeyValueUpdate<TKey, TValue> fnUpdate)
Parameters
Type Name Description
TKey key
Func<TKey, TValue> fnCreate
KeyValueUpdate<TKey, TValue> fnUpdate
Returns
Type Description
TValue
Remarks

Adds or modifies an element with the provided key and value. If the key does not exist in the collection, the factory method fnCreate will be called to produce the new value, if the key exists, the converter method fnUpdate will be called to create an updated value.

AddOrUpdate<T>(TKey, ref T)

Add, update, or fetche a key/value pair from the dictionary via an implementation of the CSharpTest.Net.Collections.ICreateOrUpdateValue`2 interface.

Declaration
public bool AddOrUpdate<T>(TKey key, ref T createOrUpdateValue)

    where T : ICreateOrUpdateValue<TKey, TValue>
Parameters
Type Name Description
TKey key
T createOrUpdateValue
Returns
Type Description
System.Boolean
Type Parameters
Name Description
T