ParallelEnumerable.Union 方法

定义

生成两个并行序列的并集。Produces the set union of two parallel sequences.

重载

Union<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>)

切勿调用此 Union 重载。This Union overload should never be called. 此方法已标记为过时,调用此方法时总是会引发 NotSupportedExceptionThis method is marked as obsolete and always throws NotSupportedException when called.

Union<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>)

通过使用默认的相等比较器,生成两个并行序列的并集。Produces the set union of two parallel sequences by using the default equality comparer.

Union<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

切勿调用此 Union 重载。This Union overload should never be called. 此方法已标记为过时,调用此方法时总是会引发 NotSupportedExceptionThis method is marked as obsolete and always throws NotSupportedException when called.

Union<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>, IEqualityComparer<TSource>)

通过使用指定的 IEqualityComparer{T} 生成两个并行序列的并集。Produces the set union of two parallel sequences by using a specified IEqualityComparer{T}.

Union<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>)

警告

此 API 现已过时。

切勿调用此 Union 重载。This Union overload should never be called. 此方法已标记为过时,调用此方法时总是会引发 NotSupportedExceptionThis method is marked as obsolete and always throws NotSupportedException when called.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static System::Linq::ParallelQuery<TSource> ^ Union(System::Linq::ParallelQuery<TSource> ^ first, System::Collections::Generic::IEnumerable<TSource> ^ second);
[System.Obsolete("The second data source of a binary operator must be of type System.Linq.ParallelQuery<T> rather than System.Collections.Generic.IEnumerable<T>. To fix this problem, use the AsParallel() extension method to convert the right data source to System.Linq.ParallelQuery<T>.")]
public static System.Linq.ParallelQuery<TSource> Union<TSource> (this System.Linq.ParallelQuery<TSource> first, System.Collections.Generic.IEnumerable<TSource> second);
static member Union : System.Linq.ParallelQuery<'Source> * seq<'Source> -> System.Linq.ParallelQuery<'Source>
<Extension()>
Public Function Union(Of TSource) (first As ParallelQuery(Of TSource), second As IEnumerable(Of TSource)) As ParallelQuery(Of TSource)

类型参数

TSource

未使用此类型参数。This type parameter is not used.

参数

first
ParallelQuery<TSource>

未使用此参数。This parameter is not used.

second
IEnumerable<TSource>

未使用此参数。This parameter is not used.

返回

此重载总是会引发 NotSupportedExceptionThis overload always throws a NotSupportedException.

属性

异常

调用此方法时发生的异常。The exception that occurs when this method is called.

已使用通过 WithCancellation 传递的令牌取消了查询。The query was canceled with the token passed in through WithCancellation.

评估查询期间发生一个或多个异常。One or more exceptions occurred during the evaluation of the query.

注解

此重载存在于不允许使用 ParallelQuery<TSource> 类型的左数据源和类型 IEnumerable<T>的右数据源的联合使用。This overload exists to disallow usage of Union with a left data source of type ParallelQuery<TSource> and a right data source of type IEnumerable<T>. 否则,Union 运算符似乎绑定到并行实现,但实际上绑定到了顺序实现。Otherwise, the Union operator would appear to be binding to the parallel implementation, but would in reality bind to sequential implementation.

另请参阅

Union<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>)

通过使用默认的相等比较器,生成两个并行序列的并集。Produces the set union of two parallel sequences by using the default equality comparer.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static System::Linq::ParallelQuery<TSource> ^ Union(System::Linq::ParallelQuery<TSource> ^ first, System::Linq::ParallelQuery<TSource> ^ second);
public static System.Linq.ParallelQuery<TSource> Union<TSource> (this System.Linq.ParallelQuery<TSource> first, System.Linq.ParallelQuery<TSource> second);
static member Union : System.Linq.ParallelQuery<'Source> * System.Linq.ParallelQuery<'Source> -> System.Linq.ParallelQuery<'Source>
<Extension()>
Public Function Union(Of TSource) (first As ParallelQuery(Of TSource), second As ParallelQuery(Of TSource)) As ParallelQuery(Of TSource)

类型参数

TSource

输入序列中的元素的类型。The type of the elements of the input sequences.

参数

first
ParallelQuery<TSource>

一个序列,其中的非重复元素构成并集的第一部分。A sequence whose distinct elements form the first set for the union.

second
ParallelQuery<TSource>

一个序列,其中的非重复元素构成并集的第二部分。A sequence whose distinct elements form the second set for the union.

返回

一个序列,其中包含两个输入序列中的非重复元素。A sequence that contains the elements from both input sequences, excluding duplicates.

异常

firstsecond 为 null 引用(在 Visual Basic 中为 Nothing)。first or second is a null reference (Nothing in Visual Basic).

已使用通过 WithCancellation 传递的令牌取消了查询。The query was canceled with the token passed in through WithCancellation.

评估查询期间发生一个或多个异常。One or more exceptions occurred during the evaluation of the query.

另请参阅

Union<TSource>(ParallelQuery<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

警告

此 API 现已过时。

切勿调用此 Union 重载。This Union overload should never be called. 此方法已标记为过时,调用此方法时总是会引发 NotSupportedExceptionThis method is marked as obsolete and always throws NotSupportedException when called.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static System::Linq::ParallelQuery<TSource> ^ Union(System::Linq::ParallelQuery<TSource> ^ first, System::Collections::Generic::IEnumerable<TSource> ^ second, System::Collections::Generic::IEqualityComparer<TSource> ^ comparer);
[System.Obsolete("The second data source of a binary operator must be of type System.Linq.ParallelQuery<T> rather than System.Collections.Generic.IEnumerable<T>. To fix this problem, use the AsParallel() extension method to convert the right data source to System.Linq.ParallelQuery<T>.")]
public static System.Linq.ParallelQuery<TSource> Union<TSource> (this System.Linq.ParallelQuery<TSource> first, System.Collections.Generic.IEnumerable<TSource> second, System.Collections.Generic.IEqualityComparer<TSource> comparer);
static member Union : System.Linq.ParallelQuery<'Source> * seq<'Source> * System.Collections.Generic.IEqualityComparer<'Source> -> System.Linq.ParallelQuery<'Source>
<Extension()>
Public Function Union(Of TSource) (first As ParallelQuery(Of TSource), second As IEnumerable(Of TSource), comparer As IEqualityComparer(Of TSource)) As ParallelQuery(Of TSource)

类型参数

TSource

未使用此类型参数。This type parameter is not used.

参数

first
ParallelQuery<TSource>

未使用此参数。This parameter is not used.

second
IEnumerable<TSource>

未使用此参数。This parameter is not used.

comparer
IEqualityComparer<TSource>

未使用此参数。This parameter is not used.

返回

此重载总是会引发 NotSupportedExceptionThis overload always throws a NotSupportedException.

属性

异常

调用此方法时发生的异常。The exception that occurs when this method is called.

已使用通过 WithCancellation 传递的令牌取消了查询。The query was canceled with the token passed in through WithCancellation.

评估查询期间发生一个或多个异常。One or more exceptions occurred during the evaluation of the query.

注解

此重载存在于不允许使用 ParallelQuery<TSource> 类型的左数据源和类型 IEnumerable<T>的右数据源的联合使用。This overload exists to disallow usage of Union with a left data source of type ParallelQuery<TSource> and a right data source of type IEnumerable<T>. 否则,Union 运算符似乎绑定到并行实现,但实际上绑定到了顺序实现。Otherwise, the Union operator would appear to be binding to the parallel implementation, but would in reality bind to the sequential implementation.

另请参阅

Union<TSource>(ParallelQuery<TSource>, ParallelQuery<TSource>, IEqualityComparer<TSource>)

通过使用指定的 IEqualityComparer{T} 生成两个并行序列的并集。Produces the set union of two parallel sequences by using a specified IEqualityComparer{T}.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static System::Linq::ParallelQuery<TSource> ^ Union(System::Linq::ParallelQuery<TSource> ^ first, System::Linq::ParallelQuery<TSource> ^ second, System::Collections::Generic::IEqualityComparer<TSource> ^ comparer);
public static System.Linq.ParallelQuery<TSource> Union<TSource> (this System.Linq.ParallelQuery<TSource> first, System.Linq.ParallelQuery<TSource> second, System.Collections.Generic.IEqualityComparer<TSource> comparer);
static member Union : System.Linq.ParallelQuery<'Source> * System.Linq.ParallelQuery<'Source> * System.Collections.Generic.IEqualityComparer<'Source> -> System.Linq.ParallelQuery<'Source>
<Extension()>
Public Function Union(Of TSource) (first As ParallelQuery(Of TSource), second As ParallelQuery(Of TSource), comparer As IEqualityComparer(Of TSource)) As ParallelQuery(Of TSource)

类型参数

TSource

输入序列中的元素的类型。The type of the elements of the input sequences.

参数

first
ParallelQuery<TSource>

一个序列,其中的非重复元素构成并集的第一部分。A sequence whose distinct elements form the first set for the union.

second
ParallelQuery<TSource>

一个序列,其中的非重复元素构成并集的第二部分。A sequence whose distinct elements form the second set for the union.

comparer
IEqualityComparer<TSource>

用于比较值的 IEqualityComparer<T>An IEqualityComparer<T> to compare values.

返回

一个序列,其中包含两个输入序列中的非重复元素。A sequence that contains the elements from both input sequences, excluding duplicates.

异常

firstsecond 为 null 引用(在 Visual Basic 中为 Nothing)。first or second is a null reference (Nothing in Visual Basic).

已使用通过 WithCancellation 传递的令牌取消了查询。The query was canceled with the token passed in through WithCancellation.

评估查询期间发生一个或多个异常。One or more exceptions occurred during the evaluation of the query.

另请参阅

适用于