QueryableExtensions.MaxAsync Method
Definition
Important
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Overloads
| 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. |
| 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.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<TResult> MaxAsync<TSource,TResult> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TResult>> selector);static member MaxAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Result>> -> 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))) 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.
Returns
A task that represents the asynchronous operation. The task result contains the maximum value in the sequence.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
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.
Applies to
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.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
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);static member MaxAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Result>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Result>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
A task that represents the asynchronous operation. The task result contains the maximum value in the sequence.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
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.
Applies to
MaxAsync<TSource>(IQueryable<TSource>)
Asynchronously returns the maximum value of a sequence.
public static System.Threading.Tasks.Task<TSource> MaxAsync<TSource> (this System.Linq.IQueryable<TSource> source);static member MaxAsync : System.Linq.IQueryable<'Source> -> System.Threading.Tasks.Task<'Source><Extension()>
Public Function MaxAsync(Of TSource) (source As IQueryable(Of TSource)) 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.
Returns
A task that represents the asynchronous operation. The task result contains the maximum value in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
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.
Applies to
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);static member MaxAsync : System.Linq.IQueryable<'Source> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Source>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
A task that represents the asynchronous operation. The task result contains the maximum value in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
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.
Applies to
Entity Framework
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