ContainsKey Method

[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]

Determines if this dictionary contains a key equal to key. The dictionary is not changed.

Namespace: Wintellect.PowerCollections
Assembly: PowerCollections (in PowerCollections.dll)

Syntax

C#
public override sealed bool ContainsKey( TKey key )

Visual Basic (Declaration)
Public Overrides NotOverridable Function ContainsKey ( _ key As TKey _ ) As Boolean

Visual C++
public: virtual bool ContainsKey ( TKey key ) override sealed

True if the dictionary contains key. False if the dictionary does not contain key.

Searching the dictionary for a key takes time O(log N), where N is the number of keys in the dictionary.