Queryable::SequenceEqual<TSource> Method (IQueryable<TSource>, IEnumerable<TSource>)
Determines whether two sequences are equal by using the default equality comparer to compare elements.
Namespace: System.Linq
Assembly: System.Core (in System.Core.dll)
Type Parameters
- TSource
The type of the elements of the input sequences.
Parameters
- source1
- Type: System.Linq::IQueryable<TSource>
An IQueryable<T> whose elements to compare to those of source2.
- source2
- Type: System.Collections.Generic::IEnumerable<TSource>
An IEnumerable<T> whose elements to compare to those of the first sequence.
Return Value
Type: System::Booleantrue if the two source sequences are of equal length and their corresponding elements compare equal; otherwise, false.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryable<TSource>. When you use instance method syntax to call this method, omit the first parameter.| Exception | Condition |
|---|---|
| ArgumentNullException | source1 or source2 is nullptr. |
The SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>) method generates a MethodCallExpression that represents calling SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>) itself as a constructed generic method. It then passes the MethodCallExpression to the Execute<TResult>(Expression) method of the IQueryProvider represented by the Provider property of the source1 parameter.
The query behavior that occurs as a result of executing an expression tree that represents calling SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>) depends on the implementation of the type of the source1 parameter. The expected behavior is that it determines if the two source sequences are equal.
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