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ICollection<T>.Contains Method

Determines whether the ICollection<T> contains a specific value.

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

bool Contains(
	T item
)

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.

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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