Enumerable.Contains<'TSource> Method (IEnumerable<'TSource>, 'TSource)
.NET Framework (current version)
Determines whether a sequence contains a specified element by using the default equality comparer.
Assembly: System.Core (in System.Core.dll)
Parameters
- source
-
Type:
System.Collections.Generic.IEnumerable<'TSource>
A sequence in which to locate a value.
- value
-
Type:
TSource
The value to locate in the sequence.
Return Value
Type: System.Booleantrue if the source sequence contains an element that has the specified value; otherwise, false.
Type Parameters
- TSource
The type of the elements of source.
| Exception | Condition |
|---|---|
| ArgumentNullException | source is null. |
If the type of source implements ICollection<'T>, the Contains method in that implementation is invoked to obtain the result. Otherwise, this method determines whether source contains the specified element.
Enumeration is terminated as soon as a matching element is found.
Elements are compared to the specified value by using the default equality comparer, Default.
Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
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
Available since 8
.NET Framework
Available since 3.5
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
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