Queryable.SequenceEqual Queryable.SequenceEqual Queryable.SequenceEqual Queryable.SequenceEqual Method

定義

2 つのシーケンスが等しいかどうかを判断します。Determines whether two sequences are equal.

オーバーロード

SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)

既定の等値比較子を使用して要素を比較することで、2 つのシーケンスが等しいかどうかを判断します。Determines whether two sequences are equal by using the default equality comparer to compare elements.

SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

指定された IEqualityComparer<T> を使用して要素を比較することで、2 つのシーケンスが等しいかどうかを判断します。Determines whether two sequences are equal by using a specified IEqualityComparer<T> to compare elements.

SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)

既定の等値比較子を使用して要素を比較することで、2 つのシーケンスが等しいかどうかを判断します。Determines whether two sequences are equal by using the default equality comparer to compare elements.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static bool SequenceEqual(System::Linq::IQueryable<TSource> ^ source1, System::Collections::Generic::IEnumerable<TSource> ^ source2);
public static bool SequenceEqual<TSource> (this System.Linq.IQueryable<TSource> source1, System.Collections.Generic.IEnumerable<TSource> source2);
static member SequenceEqual : System.Linq.IQueryable<'Source> * seq<'Source> -> bool
<Extension()>
Public Function SequenceEqual(Of TSource) (source1 As IQueryable(Of TSource), source2 As IEnumerable(Of TSource)) As Boolean

型パラメーター

TSource

入力シーケンスの要素の型。The type of the elements of the input sequences.

パラメーター

source1
IQueryable<TSource>

source2 の要素と比較する要素が含まれている IQueryable<T>An IQueryable<T> whose elements to compare to those of source2.

source2
IEnumerable<TSource>

最初のシーケンスの要素と比較する要素が含まれている IEnumerable<T>An IEnumerable<T> whose elements to compare to those of the first sequence.

戻り値

2 つのソース シーケンスが同じ長さで、それらに対応する要素の比較が等しい場合は true。それ以外の場合は falsetrue if the two source sequences are of equal length and their corresponding elements compare equal; otherwise, false.

例外

source1 または source2null です。source1 or source2 is null.

次のコード例では、をSequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)使用して、2つのシーケンスが等しいかどうかを確認する方法を示します。The following code example demonstrates how to use SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>) to determine whether two sequences are equal. この例では、シーケンスは同じです。In this example the sequences are equal.

class Pet
{
    public string Name { get; set; }
    public int Age { get; set; }
}

public static void SequenceEqualEx1()
{
    Pet pet1 = new Pet { Name = "Turbo", Age = 2 };
    Pet pet2 = new Pet { Name = "Peanut", Age = 8 };

    // Create two lists of pets.
    List<Pet> pets1 = new List<Pet> { pet1, pet2 };
    List<Pet> pets2 = new List<Pet> { pet1, pet2 };

    // Determine if the lists are equal.
    bool equal = pets1.AsQueryable().SequenceEqual(pets2);

    Console.WriteLine(
        "The lists {0} equal.",
        equal ? "are" : "are not");
}

/*
    This code produces the following output:

    The lists are equal.
*/

Class Pet
    Public Name As String
    Public Age As Integer
End Class

Shared Sub SequenceEqualEx1()
    Dim pet1 As New Pet With {.Name = "Turbo", .Age = 2}
    Dim pet2 As New Pet With {.Name = "Peanut", .Age = 8}

    ' Create two lists of pets.
    Dim pets1 As New List(Of Pet)(New Pet() {pet1, pet2})
    Dim pets2 As New List(Of Pet)(New Pet() {pet1, pet2})

    ' Determine if the lists are equal.
    Dim equal As Boolean = pets1.AsQueryable().SequenceEqual(pets2)

    ' Display the output.
    Dim text As String = IIf(equal, "are", "are not")
    MsgBox("The lists " & text & " equal.")
End Sub

'This code produces the following output:

'The lists are equal.

次のコード例では、等しくない2つのシーケンスを比較します。The following code example compares two sequences that are not equal.

class Pet
{
    public string Name { get; set; }
    public int Age { get; set; }
}

public static void SequenceEqualEx2()
{
    Pet pet1 = new Pet() { Name = "Turbo", Age = 2 };
    Pet pet2 = new Pet() { Name = "Peanut", Age = 8 };

    // Create two lists of pets.
    List<Pet> pets1 = new List<Pet> { pet1, pet2 };
    List<Pet> pets2 = new List<Pet> { 
        new Pet { Name = "Turbo", Age = 2 },
        new Pet { Name = "Peanut", Age = 8 } 
    };

    // Determine if the lists are equal.
    bool equal = pets1.AsQueryable().SequenceEqual(pets2);

    Console.WriteLine("The lists {0} equal.", equal ? "are" : "are NOT");
}

/*
    This code produces the following output:

    The lists are NOT equal.
*/

Class Pet
    Public Name As String
    Public Age As Integer
End Class

Shared Sub SequenceEqualEx2()
    Dim pet1 As New Pet With {.Name = "Turbo", .Age = 2}
    Dim pet2 As New Pet With {.Name = "Peanut", .Age = 8}

    ' Create two lists of pets.
    Dim pets1 As New List(Of Pet)()
    pets1.Add(pet1)
    pets1.Add(pet2)

    Dim pets2 As New List(Of Pet)()
    pets2.Add(New Pet With {.Name = "Turbo", .Age = 2})
    pets2.Add(New Pet With {.Name = "Peanut", .Age = 8})

    ' Determine if the lists are equal.
    Dim equal As Boolean = pets1.AsQueryable().SequenceEqual(pets2)

    ' Display the output.
    Dim text As String = IIf(equal, "are", "are not")
    MsgBox("The lists " & text & " equal.")
End Sub

' This code produces the following output:

' The lists are not equal.

注釈

メソッドSequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)は、構築MethodCallExpressionされたSequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)ジェネリックメソッドとして呼び出し元を表すを生成します。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. MethodCallExpressionに、 IQueryProvider Execute<TResult>(Expression) パラメーターsource1Providerプロパティによって表されるのメソッドにを渡します。It then passes the MethodCallExpression to the Execute<TResult>(Expression) method of the IQueryProvider represented by the Provider property of the source1 parameter.

呼び出しSequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)を表す式ツリーを実行した結果として発生するクエリ動作は、 source1パラメーターの型の実装によって異なります。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. 期待される動作は、2つのソースシーケンスが等しいかどうかを判断することです。The expected behavior is that it determines if the two source sequences are equal.

SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

指定された IEqualityComparer<T> を使用して要素を比較することで、2 つのシーケンスが等しいかどうかを判断します。Determines whether two sequences are equal by using a specified IEqualityComparer<T> to compare elements.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static bool SequenceEqual(System::Linq::IQueryable<TSource> ^ source1, System::Collections::Generic::IEnumerable<TSource> ^ source2, System::Collections::Generic::IEqualityComparer<TSource> ^ comparer);
public static bool SequenceEqual<TSource> (this System.Linq.IQueryable<TSource> source1, System.Collections.Generic.IEnumerable<TSource> source2, System.Collections.Generic.IEqualityComparer<TSource> comparer);
static member SequenceEqual : System.Linq.IQueryable<'Source> * seq<'Source> * System.Collections.Generic.IEqualityComparer<'Source> -> bool
<Extension()>
Public Function SequenceEqual(Of TSource) (source1 As IQueryable(Of TSource), source2 As IEnumerable(Of TSource), comparer As IEqualityComparer(Of TSource)) As Boolean

型パラメーター

TSource

入力シーケンスの要素の型。The type of the elements of the input sequences.

パラメーター

source1
IQueryable<TSource>

source2 の要素と比較する要素が含まれている IQueryable<T>An IQueryable<T> whose elements to compare to those of source2.

source2
IEnumerable<TSource>

最初のシーケンスの要素と比較する要素が含まれている IEnumerable<T>An IEnumerable<T> whose elements to compare to those of the first sequence.

comparer
IEqualityComparer<TSource>

要素の比較に使用する IEqualityComparer<T>An IEqualityComparer<T> to use to compare elements.

戻り値

2 つのソース シーケンスが同じ長さで、それらに対応する要素の比較が等しい場合は true。それ以外の場合は falsetrue if the two source sequences are of equal length and their corresponding elements compare equal; otherwise, false.

例外

source1 または source2null です。source1 or source2 is null.

注釈

メソッドSequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)は、構築MethodCallExpressionされたSequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)ジェネリックメソッドとして呼び出し元を表すを生成します。The SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) method generates a MethodCallExpression that represents calling SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) itself as a constructed generic method. MethodCallExpressionに、 IQueryProvider Execute<TResult>(Expression) パラメーターsource1Providerプロパティによって表されるのメソッドにを渡します。It then passes the MethodCallExpression to the Execute<TResult>(Expression) method of the IQueryProvider represented by the Provider property of the source1 parameter.

呼び出しSequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)を表す式ツリーを実行した結果として発生するクエリ動作は、 source1パラメーターの型の実装によって異なります。The query behavior that occurs as a result of executing an expression tree that represents calling SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) depends on the implementation of the type of the source1 parameter. 期待される動作は、2つのソースシーケンスが等しいかどうかcomparerを判断するために、を使用して要素を比較することです。The expected behavior is that it determines if the two source sequences are equal by using comparer to compare elements.

適用対象