AllowNullDictionaryTKey, TValueTryAdd Method

public bool TryAdd(
	TKey key,
	TValue value
)

Public Function TryAdd ( 
	key As TKey,
	value As TValue
) As Boolean

public:
virtual bool TryAdd(
	TKey key, 
	TValue value
) sealed

abstract TryAdd : 
        key : 'TKey * 
        value : 'TValue -> bool 
override TryAdd : 
        key : 'TKey * 
        value : 'TValue -> bool 

Parameters

key  TKey

The key of the element to add. In this dictionary it can be even .

value  TValue

The value of the element to add.

Return Value

Unlike the Add method, this method doesn't throw an exception if the element with the given key exists in the AllowNullDictionaryTKey, TValue. Unlike the indexer, TryAdd doesn't override the element if the element with the given key exists in the dictionary. If the key already exists, TryAdd does nothing and returns .

Reference