QueryableExtensions::MaxAsync Method
Asynchronously returns the maximum value of a sequence.
Assembly: EntityFramework (in EntityFramework.dll)
| Name | Description | |
|---|---|---|
  | MaxAsync<TSource>(IQueryable<TSource>^) | Asynchronously returns the maximum value of a sequence. |
| MaxAsync<TSource>(IQueryable<TSource>^, CancellationToken) | Asynchronously returns the maximum value of a sequence. |
| MaxAsync<TSource, TResult>(IQueryable<TSource>^, Expression<Func<TSource, TResult>^>^) | Asynchronously invokes a projection function on each element of a sequence and returns the maximum resulting value. |
| 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. |
QueryableExtensions::MaxAsync<TSource> Method (IQueryable<TSource>^)
Asynchronously returns the maximum value of a sequence.
public: generic<typename TSource> [ExtensionAttribute] static Task<TSource>^ MaxAsync( IQueryable<TSource>^ source )
Parameters
- source
-
Type:
System.Linq::IQueryable<TSource>^
An IQueryable<T> that contains the elements to determine the maximum of.
Return Value
Type: System.Threading.Tasks::Task<TSource>^A task that represents the asynchronous operation. The task result contains the maximum value in the sequence.
Type Parameters
- TSource
The type of the elements of source.
| Exception | Condition |
|---|---|
| ArgumentNullException | source is null . |
| InvalidOperationException | source does not implement IDbAsyncQueryProvider . |
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.
QueryableExtensions::MaxAsync<TSource> Method (IQueryable<TSource>^, CancellationToken)
Asynchronously returns the maximum value of a sequence.
public: generic<typename TSource> [ExtensionAttribute] static Task<TSource>^ MaxAsync( IQueryable<TSource>^ source, CancellationToken cancellationToken )
Parameters
- source
-
Type:
System.Linq::IQueryable<TSource>^
An IQueryable<T> that contains the elements to determine the maximum of.
- cancellationToken
-
Type:
System.Threading::CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Return Value
Type: System.Threading.Tasks::Task<TSource>^A task that represents the asynchronous operation. The task result contains the maximum value in the sequence.
Type Parameters
- TSource
The type of the elements of source.
| Exception | Condition |
|---|---|
| ArgumentNullException | source is null . |
| InvalidOperationException | source does not implement IDbAsyncQueryProvider . |
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.
QueryableExtensions::MaxAsync<TSource, TResult> Method (IQueryable<TSource>^, Expression<Func<TSource, TResult>^>^)
Asynchronously invokes a projection function on each element of a sequence and returns the maximum resulting value.
public: generic<typename TSource, typename TResult> [ExtensionAttribute] [SuppressMessageAttribute("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")] static Task<TResult>^ MaxAsync( IQueryable<TSource>^ source, Expression<Func<TSource, TResult>^>^ selector )
Parameters
- source
-
Type:
System.Linq::IQueryable<TSource>^
An IQueryable<T> that contains the elements to determine the maximum of.
- selector
-
Type:
System.Linq.Expressions::Expression<Func<TSource, TResult>^>^
A projection function to apply to each element.
Return Value
Type: System.Threading.Tasks::Task<TResult>^A task that represents the asynchronous operation. The task result contains the maximum value in the sequence.
Type Parameters
- TSource
The type of the elements of source.
- TResult
The type of the value returned by the function represented by selector .
| Exception | Condition |
|---|---|
| ArgumentNullException | source or selector is null . |
| InvalidOperationException | source does not implement IDbAsyncQueryProvider . |
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.
QueryableExtensions::MaxAsync<TSource, TResult> Method (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: generic<typename TSource, typename TResult> [SuppressMessageAttribute("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")] [SuppressMessageAttribute("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")] [ExtensionAttribute] static Task<TResult>^ MaxAsync( IQueryable<TSource>^ source, Expression<Func<TSource, TResult>^>^ selector, CancellationToken cancellationToken )
Parameters
- source
-
Type:
System.Linq::IQueryable<TSource>^
An IQueryable<T> that contains the elements to determine the maximum of.
- selector
-
Type:
System.Linq.Expressions::Expression<Func<TSource, TResult>^>^
A projection function to apply to each element.
- cancellationToken
-
Type:
System.Threading::CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Return Value
Type: System.Threading.Tasks::Task<TResult>^A task that represents the asynchronous operation. The task result contains the maximum value in the sequence.
Type Parameters
- TSource
The type of the elements of source.
- TResult
The type of the value returned by the function represented by selector .
| Exception | Condition |
|---|---|
| ArgumentNullException | source or selector is null . |
| InvalidOperationException | source does not implement IDbAsyncQueryProvider . |
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.