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List<T>.IList.Contains Method

Determines whether the IList contains a specific value.

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

bool IList.Contains(
	Object item
)

Parameters

item
Type: System.Object
The Object to locate in the IList.

Return Value

Type: System.Boolean
true if item is found in the IList; otherwise, false.

Implements

IList.Contains(Object)

This method determines equality using the default equality comparer EqualityComparer<T>.Default for T, the type of values in the list.

This method performs a linear search; therefore, this method is an O(n) operation, where n is Count.

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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