Enumerable.Contains(TSource) Method (IEnumerable(TSource), TSource)
Silverlight
Determines whether a sequence contains a specified element by using the default equality comparer.
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.
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). |
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.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
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