SequenceEqual(TSource) Method (IEnumerable(TSource), IEnumerable(TSource), IEqualityComparer(TSource))
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Enumerable::SequenceEqual<TSource> Method (IEnumerable<TSource>^, IEnumerable<TSource>^, IEqualityComparer<TSource>^)

 

Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer<T>.

Namespace:   System.Linq
Assembly:  System.Core (in System.Core.dll)

public:
generic<typename TSource>
[ExtensionAttribute]
static bool SequenceEqual(
	IEnumerable<TSource>^ first,
	IEnumerable<TSource>^ second,
	IEqualityComparer<TSource>^ comparer
)

Parameters

first
Type: System.Collections.Generic::IEnumerable<TSource>^

An IEnumerable<T> to compare to second.

second
Type: System.Collections.Generic::IEnumerable<TSource>^

An IEnumerable<T> to compare to the first sequence.

comparer
Type: System.Collections.Generic::IEqualityComparer<TSource>^

An IEqualityComparer<T> to use to compare elements.

Return Value

Type: System::Boolean

true if the two source sequences are of equal length and their corresponding elements compare equal according to comparer; otherwise, false.

Type Parameters

TSource

The type of the elements of the input sequences.

Exception Condition
ArgumentNullException

first or second is null.

The SequenceEqual<TSource>(IEnumerable<TSource>^, IEnumerable<TSource>^, IEqualityComparer<TSource>^) method enumerates the two source sequences in parallel and compares corresponding elements by using the specified IEqualityComparer<T>. If comparer is null, the default equality comparer, Default, is used to compare elements.

The following example shows how to implement an equality comparer that can be used in the SequenceEqual<TSource>(IEnumerable<TSource>^, IEnumerable<TSource>^, IEqualityComparer<TSource>^) method.

No code example is currently available or this language may not be supported.

After you implement this comparer, you can use sequences of Product objects in the SequenceEqual<TSource>(IEnumerable<TSource>^, IEnumerable<TSource>^, IEqualityComparer<TSource>^) method, as shown in the following example.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 4.5
.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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