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>)

要素を比較する既定の等値比較子を使用して、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>)

指定されたを使用して、2 つのシーケンスが等しいかどうかを判断しますIEqualityComparer<T>要素を比較します。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>)

要素を比較する既定の等値比較子を使用して、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>

IQueryable<T>のものを比較する要素を含むsource2します。An IQueryable<T> whose elements to compare to those of source2.

source2
IEnumerable<TSource>

IEnumerable<T>の最初のシーケンスを比較する要素を格納します。An IEnumerable<T> whose elements to compare to those of the first sequence.

戻り値

true 2 つのソース シーケンスが同じ長さと、対応する要素が等しい場合それ以外の場合、falseします。true 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.

次のコード例は、使用する方法を示しますSequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)を 2 つのシーケンスが等しいかどうかを判断します。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、シーケンスは等しいです。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.

次のコード例が等しくない 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

SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)メソッドを生成、MethodCallExpression呼び出しを表すSequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)として構築されたジェネリック メソッド自体。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. これは、後、渡します、MethodCallExpressionExecute<TResult>(Expression)のメソッド、IQueryProviderによって表される、Providerのプロパティ、source1パラメーター。It then passes the MethodCallExpression to the Execute<TResult>(Expression) method of the IQueryProvider represented by the Provider property of the source1 parameter.

呼び出し元を表す式ツリーを実行した結果として発生するクエリの動作SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)の型の実装によって異なります、source1パラメーター。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. 想定される動作は、2 つのソース シーケンスが等しいかどう決定です。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>)

指定されたを使用して、2 つのシーケンスが等しいかどうかを判断しますIEqualityComparer<T>要素を比較します。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>

IQueryable<T>のものを比較する要素を含むsource2します。An IQueryable<T> whose elements to compare to those of source2.

source2
IEnumerable<TSource>

IEnumerable<T>の最初のシーケンスを比較する要素を格納します。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

true 2 つのソース シーケンスが同じ長さと、対応する要素が等しい場合それ以外の場合、falseします。true 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

SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)メソッドを生成、MethodCallExpression呼び出しを表すSequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)として構築されたジェネリック メソッド自体。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. これは、後、渡します、MethodCallExpressionExecute<TResult>(Expression)のメソッド、IQueryProviderによって表される、Providerのプロパティ、source1パラメーター。It then passes the MethodCallExpression to the Execute<TResult>(Expression) method of the IQueryProvider represented by the Provider property of the source1 parameter.

呼び出し元を表す式ツリーを実行した結果として発生するクエリの動作SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)の型の実装によって異なります、source1パラメーター。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. 想定される動作を使用して、シーケンスが等しい場合は、2 つのソース決定comparer要素を比較します。The expected behavior is that it determines if the two source sequences are equal by using comparer to compare elements.

適用対象