Export (0) Print
Expand All

ICollection(T).Contains Method

Determines whether the ICollection(T) contains a specific value.

Namespace:  System.Collections.Generic
Assembly:  mscorlib (in mscorlib.dll)

abstract Contains : 
        item:'T -> bool

Parameters

item
Type: T

The object to locate in the ICollection(T).

Return Value

Type: System.Boolean
true if item is found in the ICollection(T); otherwise, false.

Implementations can vary in how they determine equality of objects; for example, List(T) uses Comparer(T).Default, whereas Dictionary(TKey, TValue) allows the user to specify the IComparer(T) implementation to use for comparing keys.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
Show:
© 2015 Microsoft