EntityFrameworkQueryableExtensions.MaxAsync Method

Definition

Namespace:

Microsoft.EntityFrameworkCore

Assembly:

Microsoft.EntityFrameworkCore.dll

Package:

Microsoft.EntityFrameworkCore v8.0.0

Overloads

MaxAsync<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>, CancellationToken)	Asynchronously invokes a projection function on each element of a sequence and returns the maximum resulting value.
MaxAsync<TSource>(IQueryable<TSource>, CancellationToken)	Asynchronously returns the maximum value of a sequence.

MaxAsync<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>, CancellationToken)

Asynchronously invokes a projection function on each element of a sequence and returns the maximum resulting value.

public static System.Threading.Tasks.Task<TResult> MaxAsync<TSource,TResult> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TResult>> selector, System.Threading.CancellationToken cancellationToken = default);

static member MaxAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Result>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Result>

<Extension()>
Public Function MaxAsync(Of TSource, TResult) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, TResult)), Optional cancellationToken As CancellationToken = Nothing) As Task(Of TResult)

Type Parameters

TSource

The type of the elements of source.

TResult

The type of the value returned by the function represented by selector.

Parameters

source

IQueryable<TSource>

An IQueryable<T> that contains the elements to determine the maximum of.

selector

Expression<Func<TSource,TResult>>

A projection function to apply to each element.

cancellationToken

CancellationToken

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

Returns

Task<TResult>

A task that represents the asynchronous operation. The task result contains the maximum value in the sequence.

Exceptions

ArgumentNullException

source or selector is null.

InvalidOperationException

source contains no elements.

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.

MaxAsync<TSource>(IQueryable<TSource>, CancellationToken)

Asynchronously returns the maximum value of a sequence.

public static System.Threading.Tasks.Task<TSource> MaxAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Threading.CancellationToken cancellationToken = default);

static member MaxAsync : System.Linq.IQueryable<'Source> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Source>

<Extension()>
Public Function MaxAsync(Of TSource) (source As IQueryable(Of TSource), Optional cancellationToken As CancellationToken = Nothing) As Task(Of TSource)

Type Parameters

TSource

The type of the elements of source.

Parameters

source

IQueryable<TSource>

An IQueryable<T> that contains the elements to determine the maximum of.

cancellationToken

CancellationToken

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

Returns

Task<TSource>

A task that represents the asynchronous operation. The task result contains the maximum value in the sequence.

Exceptions

ArgumentNullException

source is null.

InvalidOperationException

source contains no elements.

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.