List<T>.IList.Contains(Object) Method

Reference

Definition

Namespace:: System.Collections.Generic

Assemblies:: mscorlib.dll, System.Collections.dll

Assemblies:: netstandard.dll, System.Collections.dll

Assembly:: System.Collections.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: List.cs

Source:: List.cs

Source:: List.cs

Important

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Determines whether the IList contains a specific value.

 virtual bool System.Collections.IList.Contains(System::Object ^ item) = System::Collections::IList::Contains;

bool IList.Contains(object item);

abstract member System.Collections.IList.Contains : obj -> bool
override this.System.Collections.IList.Contains : obj -> bool

Function Contains (item As Object) As Boolean Implements IList.Contains

Parameters

item: Object

The Object to locate in the IList.

Returns

Boolean

true if item is found in the IList; otherwise, false.

Implements

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.

Applies to

Proizvod	Verzije
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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