ParallelEnumerable.Sum Method

Reference

Definition

Namespace:: System.Linq

Assembly:: System.Linq.Parallel.dll

Assembly:: System.Core.dll

Assembly:: netstandard.dll

Important

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Computes in parallel the sum of a sequence of values.

Overloads

Sum(ParallelQuery<Nullable<Single>>)	Computes in parallel the sum of a sequence of values.
Sum(ParallelQuery<Nullable<Int64>>)	Computes in parallel the sum of a sequence of values.
Sum(ParallelQuery<Nullable<Int32>>)	Computes in parallel the sum of a sequence of values.
Sum(ParallelQuery<Nullable<Double>>)	Computes in parallel the sum of a sequence of values.
Sum(ParallelQuery<Single>)	Computes in parallel the sum of a sequence of values.
Sum(ParallelQuery<Int64>)	Computes in parallel the sum of a sequence of values.
Sum(ParallelQuery<Int32>)	Computes in parallel the sum of a sequence of values.
Sum(ParallelQuery<Double>)	Computes in parallel the sum of a sequence of values.
Sum(ParallelQuery<Decimal>)	Computes in parallel the sum of a sequence of values.
Sum(ParallelQuery<Nullable<Decimal>>)	Computes in parallel the sum of a sequence of values.
Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Single>)	Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Decimal>)	Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Double>)	Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Int32>)	Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Int64>)	Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Nullable<Decimal>>)	Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Nullable<Double>>)	Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Nullable<Int32>>)	Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Nullable<Int64>>)	Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.
Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Nullable<Single>>)	Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

Sum(ParallelQuery<Nullable<Single>>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of a sequence of values.

public:
[System::Runtime::CompilerServices::Extension]
 static Nullable<float> Sum(System::Linq::ParallelQuery<Nullable<float>> ^ source);

public static float? Sum (this System.Linq.ParallelQuery<float?> source);

static member Sum : System.Linq.ParallelQuery<Nullable<single>> -> Nullable<single>

<Extension()>
Public Function Sum (source As ParallelQuery(Of Nullable(Of Single))) As Nullable(Of Single)

Parameters

source: ParallelQuery<Nullable<Single>>

A sequence of values to calculate the sum of.

Returns

Nullable<Single>

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Single.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum(ParallelQuery<Nullable<Int64>>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of a sequence of values.

public:
[System::Runtime::CompilerServices::Extension]
 static Nullable<long> Sum(System::Linq::ParallelQuery<Nullable<long>> ^ source);

public static long? Sum (this System.Linq.ParallelQuery<long?> source);

static member Sum : System.Linq.ParallelQuery<Nullable<int64>> -> Nullable<int64>

<Extension()>
Public Function Sum (source As ParallelQuery(Of Nullable(Of Long))) As Nullable(Of Long)

Parameters

source: ParallelQuery<Nullable<Int64>>

A sequence of values to calculate the sum of.

Returns

Nullable<Int64>

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Int64.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum(ParallelQuery<Nullable<Int32>>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of a sequence of values.

public:
[System::Runtime::CompilerServices::Extension]
 static Nullable<int> Sum(System::Linq::ParallelQuery<Nullable<int>> ^ source);

public static int? Sum (this System.Linq.ParallelQuery<int?> source);

static member Sum : System.Linq.ParallelQuery<Nullable<int>> -> Nullable<int>

<Extension()>
Public Function Sum (source As ParallelQuery(Of Nullable(Of Integer))) As Nullable(Of Integer)

Parameters

source: ParallelQuery<Nullable<Int32>>

A sequence of values to calculate the sum of.

Returns

Nullable<Int32>

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Int32.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum(ParallelQuery<Nullable<Double>>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of a sequence of values.

public:
[System::Runtime::CompilerServices::Extension]
 static Nullable<double> Sum(System::Linq::ParallelQuery<Nullable<double>> ^ source);

public static double? Sum (this System.Linq.ParallelQuery<double?> source);

static member Sum : System.Linq.ParallelQuery<Nullable<double>> -> Nullable<double>

<Extension()>
Public Function Sum (source As ParallelQuery(Of Nullable(Of Double))) As Nullable(Of Double)

Parameters

source: ParallelQuery<Nullable<Double>>

A sequence of values to calculate the sum of.

Returns

Nullable<Double>

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Double.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum(ParallelQuery<Single>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of a sequence of values.

public:
[System::Runtime::CompilerServices::Extension]
 static float Sum(System::Linq::ParallelQuery<float> ^ source);

public static float Sum (this System.Linq.ParallelQuery<float> source);

static member Sum : System.Linq.ParallelQuery<single> -> single

<Extension()>
Public Function Sum (source As ParallelQuery(Of Single)) As Single

Parameters

source: ParallelQuery<Single>

A sequence of values to calculate the sum of.

Returns

Single

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Single.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum(ParallelQuery<Int64>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of a sequence of values.

public:
[System::Runtime::CompilerServices::Extension]
 static long Sum(System::Linq::ParallelQuery<long> ^ source);

public static long Sum (this System.Linq.ParallelQuery<long> source);

static member Sum : System.Linq.ParallelQuery<int64> -> int64

<Extension()>
Public Function Sum (source As ParallelQuery(Of Long)) As Long

Parameters

source: ParallelQuery<Int64>

A sequence of values to calculate the sum of.

Returns

Int64

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Int64.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum(ParallelQuery<Int32>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of a sequence of values.

public:
[System::Runtime::CompilerServices::Extension]
 static int Sum(System::Linq::ParallelQuery<int> ^ source);

public static int Sum (this System.Linq.ParallelQuery<int> source);

static member Sum : System.Linq.ParallelQuery<int> -> int

<Extension()>
Public Function Sum (source As ParallelQuery(Of Integer)) As Integer

Parameters

source: ParallelQuery<Int32>

A sequence of values to calculate the sum of.

Returns

Int32

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Int32.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum(ParallelQuery<Double>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of a sequence of values.

public:
[System::Runtime::CompilerServices::Extension]
 static double Sum(System::Linq::ParallelQuery<double> ^ source);

public static double Sum (this System.Linq.ParallelQuery<double> source);

static member Sum : System.Linq.ParallelQuery<double> -> double

<Extension()>
Public Function Sum (source As ParallelQuery(Of Double)) As Double

Parameters

source: ParallelQuery<Double>

A sequence of values to calculate the sum of.

Returns

Double

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Double.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum(ParallelQuery<Decimal>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of a sequence of values.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Decimal Sum(System::Linq::ParallelQuery<System::Decimal> ^ source);

public static decimal Sum (this System.Linq.ParallelQuery<decimal> source);

static member Sum : System.Linq.ParallelQuery<decimal> -> decimal

<Extension()>
Public Function Sum (source As ParallelQuery(Of Decimal)) As Decimal

Parameters

source: ParallelQuery<Decimal>

A sequence of values to calculate the sum of.

Returns

Decimal

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Decimal.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum(ParallelQuery<Nullable<Decimal>>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of a sequence of values.

public:
[System::Runtime::CompilerServices::Extension]
 static Nullable<System::Decimal> Sum(System::Linq::ParallelQuery<Nullable<System::Decimal>> ^ source);

public static decimal? Sum (this System.Linq.ParallelQuery<decimal?> source);

static member Sum : System.Linq.ParallelQuery<Nullable<decimal>> -> Nullable<decimal>

<Extension()>
Public Function Sum (source As ParallelQuery(Of Nullable(Of Decimal))) As Nullable(Of Decimal)

Parameters

source: ParallelQuery<Nullable<Decimal>>

A sequence of values to calculate the sum of.

Returns

Nullable<Decimal>

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Decimal.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Single>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static float Sum(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, float> ^ selector);

public static float Sum<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,float> selector);

static member Sum : System.Linq.ParallelQuery<'Source> * Func<'Source, single> -> single

<Extension()>
Public Function Sum(Of TSource) (source As ParallelQuery(Of TSource), selector As Func(Of TSource, Single)) As Single

Type Parameters

TSource

The type of elements of source.

Parameters

source: ParallelQuery<TSource>

A sequence of values to calculate the sum of.

selector: Func<TSource,Single>

A transform function to apply to each element.

Returns

Single

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source or selector is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Single.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Decimal>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static System::Decimal Sum(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, System::Decimal> ^ selector);

public static decimal Sum<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,decimal> selector);

static member Sum : System.Linq.ParallelQuery<'Source> * Func<'Source, decimal> -> decimal

<Extension()>
Public Function Sum(Of TSource) (source As ParallelQuery(Of TSource), selector As Func(Of TSource, Decimal)) As Decimal

Type Parameters

TSource

The type of elements of source.

Parameters

source: ParallelQuery<TSource>

A sequence of values to calculate the sum of.

selector: Func<TSource,Decimal>

A transform function to apply to each element.

Returns

Decimal

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source or selector is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Decimal.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Double>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static double Sum(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, double> ^ selector);

public static double Sum<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,double> selector);

static member Sum : System.Linq.ParallelQuery<'Source> * Func<'Source, double> -> double

<Extension()>
Public Function Sum(Of TSource) (source As ParallelQuery(Of TSource), selector As Func(Of TSource, Double)) As Double

Type Parameters

TSource

The type of elements of source.

Parameters

source: ParallelQuery<TSource>

A sequence of values to calculate the sum of.

selector: Func<TSource,Double>

A transform function to apply to each element.

Returns

Double

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source or selector is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Double.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Int32>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static int Sum(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, int> ^ selector);

public static int Sum<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,int> selector);

static member Sum : System.Linq.ParallelQuery<'Source> * Func<'Source, int> -> int

<Extension()>
Public Function Sum(Of TSource) (source As ParallelQuery(Of TSource), selector As Func(Of TSource, Integer)) As Integer

Type Parameters

TSource

The type of elements in the source sequence.

Parameters

source: ParallelQuery<TSource>

A sequence of values to calculate the sum of.

selector: Func<TSource,Int32>

A transform function to apply to each element.

Returns

Int32

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source or selector is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Int32.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Int64>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static long Sum(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, long> ^ selector);

public static long Sum<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,long> selector);

static member Sum : System.Linq.ParallelQuery<'Source> * Func<'Source, int64> -> int64

<Extension()>
Public Function Sum(Of TSource) (source As ParallelQuery(Of TSource), selector As Func(Of TSource, Long)) As Long

Type Parameters

TSource

The type of elements of source.

Parameters

source: ParallelQuery<TSource>

A sequence of values to calculate the sum of.

selector: Func<TSource,Int64>

A transform function to apply to each element.

Returns

Int64

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source or selector is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Int64.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Nullable<Decimal>>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static Nullable<System::Decimal> Sum(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, Nullable<System::Decimal>> ^ selector);

public static decimal? Sum<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,decimal?> selector);

static member Sum : System.Linq.ParallelQuery<'Source> * Func<'Source, Nullable<decimal>> -> Nullable<decimal>

<Extension()>
Public Function Sum(Of TSource) (source As ParallelQuery(Of TSource), selector As Func(Of TSource, Nullable(Of Decimal))) As Nullable(Of Decimal)

Type Parameters

TSource

The type of elements of source.

Parameters

source: ParallelQuery<TSource>

A sequence of values to calculate the sum of.

selector: Func<TSource,Nullable<Decimal>>

A transform function to apply to each element.

Returns

Nullable<Decimal>

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source or selector is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Decimal.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Nullable<Double>>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static Nullable<double> Sum(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, Nullable<double>> ^ selector);

public static double? Sum<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,double?> selector);

static member Sum : System.Linq.ParallelQuery<'Source> * Func<'Source, Nullable<double>> -> Nullable<double>

<Extension()>
Public Function Sum(Of TSource) (source As ParallelQuery(Of TSource), selector As Func(Of TSource, Nullable(Of Double))) As Nullable(Of Double)

Type Parameters

TSource

The type of elements of source.

Parameters

source: ParallelQuery<TSource>

A sequence of values to calculate the sum of.

selector: Func<TSource,Nullable<Double>>

A transform function to apply to each element.

Returns

Nullable<Double>

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source or selector is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Double.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Nullable<Int32>>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static Nullable<int> Sum(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, Nullable<int>> ^ selector);

public static int? Sum<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,int?> selector);

static member Sum : System.Linq.ParallelQuery<'Source> * Func<'Source, Nullable<int>> -> Nullable<int>

<Extension()>
Public Function Sum(Of TSource) (source As ParallelQuery(Of TSource), selector As Func(Of TSource, Nullable(Of Integer))) As Nullable(Of Integer)

Type Parameters

TSource

The type of elements of source.

Parameters

source: ParallelQuery<TSource>

A sequence of values to calculate the sum of.

selector: Func<TSource,Nullable<Int32>>

A transform function to apply to each element.

Returns

Nullable<Int32>

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source or selector is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Int32.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Nullable<Int64>>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static Nullable<long> Sum(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, Nullable<long>> ^ selector);

public static long? Sum<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,long?> selector);

static member Sum : System.Linq.ParallelQuery<'Source> * Func<'Source, Nullable<int64>> -> Nullable<int64>

<Extension()>
Public Function Sum(Of TSource) (source As ParallelQuery(Of TSource), selector As Func(Of TSource, Nullable(Of Long))) As Nullable(Of Long)

Type Parameters

TSource

The type of elements of source.

Parameters

source: ParallelQuery<TSource>

A sequence of values to calculate the sum of.

selector: Func<TSource,Nullable<Int64>>

A transform function to apply to each element.

Returns

Nullable<Int64>

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source or selector is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Int64.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Nullable<Single>>)

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Source:: ParallelEnumerable.cs

Computes in parallel the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static Nullable<float> Sum(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, Nullable<float>> ^ selector);

public static float? Sum<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,float?> selector);

static member Sum : System.Linq.ParallelQuery<'Source> * Func<'Source, Nullable<single>> -> Nullable<single>

<Extension()>
Public Function Sum(Of TSource) (source As ParallelQuery(Of TSource), selector As Func(Of TSource, Nullable(Of Single))) As Nullable(Of Single)

Type Parameters

TSource

The type of elements of source.

Parameters

source: ParallelQuery<TSource>

A sequence of values to calculate the sum of.

selector: Func<TSource,Nullable<Single>>

A transform function to apply to each element.

Returns

Nullable<Single>

The sum of the projected values in the sequence.

Exceptions

OperationCanceledException

The query was canceled with the token passed in through WithCancellation<TSource>(ParallelQuery<TSource>, CancellationToken).

ArgumentNullException

source or selector is a null reference (Nothing in Visual Basic).

AggregateException

The sum is larger than Single.MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

Applies to

Κοινή χρήση μέσω

ParallelEnumerable.Sum Method

Definition

Overloads

Sum(ParallelQuery<Nullable<Single>>)

Parameters

Returns

Exceptions

See also

Applies to

Sum(ParallelQuery<Nullable<Int64>>)

Parameters

Returns

Exceptions

See also

Applies to

Sum(ParallelQuery<Nullable<Int32>>)

Parameters

Returns

Exceptions

See also

Applies to

Sum(ParallelQuery<Nullable<Double>>)

Parameters

Returns

Exceptions

See also

Applies to

Sum(ParallelQuery<Single>)

Parameters

Returns

Exceptions

See also

Applies to

Sum(ParallelQuery<Int64>)

Parameters

Returns

Exceptions

See also

Applies to

Sum(ParallelQuery<Int32>)

Parameters

Returns

Exceptions

See also

Applies to

Sum(ParallelQuery<Double>)

Parameters

Returns

Exceptions

See also

Applies to

Sum(ParallelQuery<Decimal>)

Parameters

Returns

Exceptions

See also

Applies to

Sum(ParallelQuery<Nullable<Decimal>>)

Parameters

Returns

Exceptions

See also

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Single>)

Type Parameters

Parameters

Returns

Exceptions

See also

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Decimal>)

Type Parameters

Parameters

Returns

Exceptions

See also

Applies to

Sum<TSource>(ParallelQuery<TSource>, Func<TSource,Double>)

Type Parameters