Enumerable.Contains(TSource) Method (IEnumerable(TSource), TSource, IEqualityComparer(TSource))
Silverlight
Determines whether a sequence contains a specified element by using a specified IEqualityComparer(T).
Namespace: System.Linq
Assembly: System.Core (in System.Core.dll)
Type Parameters
- TSource
The type of the elements of source.
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.
- comparer
- Type: System.Collections.Generic.IEqualityComparer(TSource)
An equality comparer to compare values.
Return Value
Type: System.Booleantrue if the source sequence contains an element that has the specified value; otherwise, false.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable(TSource). When you use instance method syntax to call this method, omit the first parameter.| Exception | Condition |
|---|---|
| ArgumentNullException | source is a null reference (Nothing in Visual Basic). |
Enumeration is terminated as soon as a matching element is found.
If comparer is a null reference (Nothing in Visual Basic), the default equality comparer, Default, is used to compare elements to the specified value.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
Community Additions
ADD
Show: