This is documentation for an old release of Numerics.NET (version 8.1). Read this page in the documentation of the latest stable release (version 9.0).

LinqExtensions.DataFrameLookup<TKey, R, C>.Contains Method

Determines whether a specific key exists in the lookup.

Definition

Namespace: Extreme.DataAnalysis.Linq
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23

C#

public bool Contains(
	TKey key
)

Visual Basic

Public Function Contains ( 
	key As TKey
) As Boolean

C++/CLI

public:
bool Contains(
	TKey key
)

F#

member Contains : 
        key : 'TKey -> bool