Parallel.ForAsync Method

Definition

Namespace:

System.Threading.Tasks

Assembly:

System.Threading.Tasks.Parallel.dll

Overloads

ForAsync<T>(T, T, ParallelOptions, Func<T,CancellationToken,ValueTask>)	Executes a for loop in which iterations may run in parallel.
ForAsync<T>(T, T, Func<T,CancellationToken,ValueTask>)	Executes a for loop in which iterations may run in parallel.
ForAsync<T>(T, T, CancellationToken, Func<T,CancellationToken,ValueTask>)	Executes a for loop in which iterations may run in parallel.

ForAsync<T>(T, T, ParallelOptions, Func<T,CancellationToken,ValueTask>)

Source:

Parallel.ForEachAsync.cs

Executes a for loop in which iterations may run in parallel.

public:
generic <typename T>
 where T : System::Numerics::IBinaryInteger<T> static System::Threading::Tasks::Task ^ ForAsync(T fromInclusive, T toExclusive, System::Threading::Tasks::ParallelOptions ^ parallelOptions, Func<T, System::Threading::CancellationToken, System::Threading::Tasks::ValueTask> ^ body);

public static System.Threading.Tasks.Task ForAsync<T> (T fromInclusive, T toExclusive, System.Threading.Tasks.ParallelOptions parallelOptions, Func<T,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask> body) where T : System.Numerics.IBinaryInteger<T>;

static member ForAsync : 'T * 'T * System.Threading.Tasks.ParallelOptions * Func<'T, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask (requires 'T :> System.Numerics.IBinaryInteger<'T>)> -> System.Threading.Tasks.Task (requires 'T :> System.Numerics.IBinaryInteger<'T>)

Public Shared Function ForAsync(Of T As IBinaryInteger(Of T)) (fromInclusive As T, toExclusive As T, parallelOptions As ParallelOptions, body As Func(Of T, CancellationToken, ValueTask)) As Task

Type Parameters

T

Parameters

fromInclusive

T

The start index, inclusive.

toExclusive

T

The end index, exclusive.

parallelOptions

ParallelOptions

An object that configures the behavior of this operation.

body

Func<T,CancellationToken,ValueTask>

An asynchronous delegate that is invoked once per element in the data source.

Returns

Task

A task that represents the entire for each operation.

Exceptions

ArgumentNullException

The body argument is null.

Remarks

The operation will execute at most ProcessorCount operations in parallel.

ForAsync<T>(T, T, Func<T,CancellationToken,ValueTask>)

Source:

Parallel.ForEachAsync.cs

Executes a for loop in which iterations may run in parallel.

public:
generic <typename T>
 where T : System::Numerics::IBinaryInteger<T> static System::Threading::Tasks::Task ^ ForAsync(T fromInclusive, T toExclusive, Func<T, System::Threading::CancellationToken, System::Threading::Tasks::ValueTask> ^ body);

public static System.Threading.Tasks.Task ForAsync<T> (T fromInclusive, T toExclusive, Func<T,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask> body) where T : System.Numerics.IBinaryInteger<T>;

static member ForAsync : 'T * 'T * Func<'T, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask (requires 'T :> System.Numerics.IBinaryInteger<'T>)> -> System.Threading.Tasks.Task (requires 'T :> System.Numerics.IBinaryInteger<'T>)

Public Shared Function ForAsync(Of T As IBinaryInteger(Of T)) (fromInclusive As T, toExclusive As T, body As Func(Of T, CancellationToken, ValueTask)) As Task

Type Parameters

T

Parameters

fromInclusive

T

The start index, inclusive.

toExclusive

T

The end index, exclusive.

body

Func<T,CancellationToken,ValueTask>

An asynchronous delegate that is invoked once per element in the data source.

Returns

Task

A task that represents the entire for each operation.

Exceptions

ArgumentNullException

The body argument is null.

Remarks

The operation will execute at most ProcessorCount operations in parallel.

ForAsync<T>(T, T, CancellationToken, Func<T,CancellationToken,ValueTask>)

Source:

Parallel.ForEachAsync.cs

Executes a for loop in which iterations may run in parallel.

public:
generic <typename T>
 where T : System::Numerics::IBinaryInteger<T> static System::Threading::Tasks::Task ^ ForAsync(T fromInclusive, T toExclusive, System::Threading::CancellationToken cancellationToken, Func<T, System::Threading::CancellationToken, System::Threading::Tasks::ValueTask> ^ body);

public static System.Threading.Tasks.Task ForAsync<T> (T fromInclusive, T toExclusive, System.Threading.CancellationToken cancellationToken, Func<T,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask> body) where T : System.Numerics.IBinaryInteger<T>;

static member ForAsync : 'T * 'T * System.Threading.CancellationToken * Func<'T, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask (requires 'T :> System.Numerics.IBinaryInteger<'T>)> -> System.Threading.Tasks.Task (requires 'T :> System.Numerics.IBinaryInteger<'T>)

Public Shared Function ForAsync(Of T As IBinaryInteger(Of T)) (fromInclusive As T, toExclusive As T, cancellationToken As CancellationToken, body As Func(Of T, CancellationToken, ValueTask)) As Task

Type Parameters

T

Parameters

fromInclusive

T

The start index, inclusive.

toExclusive

T

The end index, exclusive.

cancellationToken

CancellationToken

A cancellation token that may be used to cancel the for each operation.

body

Func<T,CancellationToken,ValueTask>

An asynchronous delegate that is invoked once per element in the data source.

Returns

Task

A task that represents the entire for each operation.

Exceptions

ArgumentNullException

The body argument is null.

OperationCanceledException

The cancellation token was canceled. This exception is stored into the returned task.

Remarks

The operation will execute at most ProcessorCount operations in parallel.