List<T>::IList::Contains Method (Object^)

.NET Framework (current version)

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Determines whether the IList contains a specific value.

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

Syntax

C++

private:
virtual bool Contains(
	Object^ item
) sealed = IList::Contains

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^)

Remarks

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.

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1