EntityFrameworkQueryableExtensions.ForEachAsync<T> Method

Definition

Namespace:

Microsoft.EntityFrameworkCore

Assembly:

Microsoft.EntityFrameworkCore.dll

Package:

Microsoft.EntityFrameworkCore v8.0.0

Asynchronously enumerates the query results and performs the specified action on each element.

public static System.Threading.Tasks.Task ForEachAsync<T> (this System.Linq.IQueryable<T> source, Action<T> action, System.Threading.CancellationToken cancellationToken = default);

static member ForEachAsync : System.Linq.IQueryable<'T> * Action<'T> * System.Threading.CancellationToken -> System.Threading.Tasks.Task

<Extension()>
Public Function ForEachAsync(Of T) (source As IQueryable(Of T), action As Action(Of T), Optional cancellationToken As CancellationToken = Nothing) As Task

Type Parameters

T

The type of the elements of source.

Parameters

source

IQueryable<T>

An IQueryable<T> to enumerate.

action

Action<T>

The action to perform on each element.

cancellationToken

CancellationToken

A CancellationToken to observe while waiting for the task to complete.

Returns

Task

A task that represents the asynchronous operation.

Exceptions

ArgumentNullException

source or action is null.

OperationCanceledException

If the CancellationToken is canceled.

Remarks

Multiple active operations on the same context instance are not supported. Use await to ensure that any asynchronous operations have completed before calling another method on this context. See Avoiding DbContext threading issues for more information and examples.

See Querying data with EF Core for more information and examples.