Queryable.Intersect Queryable.Intersect Queryable.Intersect Queryable.Intersect Method

Definition

2 つのシーケンスの積集合を生成します。 Produces the set intersection of two sequences.

Overloads

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

既定の等値比較子を使用して値を比較することにより、2 つのシーケンスの積集合を生成します。 Produces the set intersection of two sequences by using the default equality comparer to compare values.

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

指定された IEqualityComparer<T> を使用して値を比較することにより、2 つのシーケンスの積集合を生成します。 Produces the set intersection of two sequences by using the specified IEqualityComparer<T> to compare values.

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

既定の等値比較子を使用して値を比較することにより、2 つのシーケンスの積集合を生成します。 Produces the set intersection of two sequences by using the default equality comparer to compare values.

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

Type Parameters

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 にも含まれる、返される一意の要素を含むシーケンス。 A sequence whose distinct elements that also appear in source2 are returned.

source2
IEnumerable<TSource>

最初のシーケンスにも含まれる、返される一意の要素を含むシーケンス。 A sequence whose distinct elements that also appear in the first sequence are returned.

Returns

IQueryable<TSource>

2 つのシーケンスの積集合を含むシーケンス。 A sequence that contains the set intersection of the two sequences.

Exceptions

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

Examples

次のコード例は、使用する方法を示しますIntersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>)を 2 つのシーケンスの各表示される要素を返します。The following code example demonstrates how to use Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>) to return the elements that appear in each of two sequences.

int[] id1 = { 44, 26, 92, 30, 71, 38 };
int[] id2 = { 39, 59, 83, 47, 26, 4, 30 };

// Get the numbers that occur in both arrays (id1 and id2).
IEnumerable<int> both = id1.AsQueryable().Intersect(id2);

foreach (int id in both)
    Console.WriteLine(id);

/*
    This code produces the following output:

    26
    30
*/

Dim id1() As Integer = {44, 26, 92, 30, 71, 38}
Dim id2() As Integer = {39, 59, 83, 47, 26, 4, 30}

' Get the numbers that occur in both arrays (id1 and id2).
Dim both As IEnumerable(Of Integer) = id1.AsQueryable().Intersect(id2)

Dim output As New System.Text.StringBuilder
For Each id As Integer In both
    output.AppendLine(id)
Next

' Display the output.
MsgBox(output.ToString())

' This code produces the following output:

' 26
' 30

Remarks

Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>)メソッドを生成、MethodCallExpression呼び出しを表すIntersect<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 Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>) method generates a MethodCallExpression that represents calling Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>) itself as a constructed generic method. これは、後、渡します、MethodCallExpressionCreateQuery<TElement>(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 CreateQuery<TElement>(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Intersect<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 Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>) depends on the implementation of the type of the source1 parameter. 想定される動作はのすべての要素source1いるものsource2が返されます。The expected behavior is that all the elements in source1 that are also in source2 are returned.

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

指定された IEqualityComparer<T> を使用して値を比較することにより、2 つのシーケンスの積集合を生成します。 Produces the set intersection of two sequences by using the specified IEqualityComparer<T> to compare values.

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

Type Parameters

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 にも含まれる、返される一意の要素を含む IQueryable<T> An IQueryable<T> whose distinct elements that also appear in source2 are returned.

source2
IEnumerable<TSource>

最初のシーケンスにも含まれる、返される一意の要素を含む IEnumerable<T> An IEnumerable<T> whose distinct elements that also appear in the first sequence are returned.

comparer
IEqualityComparer<TSource>

値を比較する IEqualityComparer<T> An IEqualityComparer<T> to compare values.

Returns

IQueryable<TSource>

2 つのシーケンスの積集合を含む IQueryable<T> An IQueryable<T> that contains the set intersection of the two sequences.

Exceptions

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

Remarks

Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)メソッドを生成、MethodCallExpression呼び出しを表すIntersect<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 Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) method generates a MethodCallExpression that represents calling Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) itself as a constructed generic method. これは、後、渡します、MethodCallExpressionCreateQuery<TElement>(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 CreateQuery<TElement>(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Intersect<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 Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>) depends on the implementation of the type of the source1 parameter. 想定される動作はのすべての要素source1いるものsource2が返されます。The expected behavior is that all the elements in source1 that are also in source2 are returned. comparerパラメーターは、要素の比較に使用します。The comparer parameter is used to compare elements.

Applies to