MongoQueryable.AnyAsync(TSource) Method (IMongoQueryable(TSource), Expression(Func(TSource, Boolean)), CancellationToken) (original) (raw)
MongoQueryableAnyAsyncTSource Method (IMongoQueryableTSource, ExpressionFuncTSource, Boolean, CancellationToken)
Determines whether any element of a sequence satisfies a condition.
Namespace: MongoDB.Driver.Linq
Assembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.10.0+569905ff5e778c38ea19d9d0392496a83e1704ed
Syntax
public static Task AnyAsync( this IMongoQueryable source, Expression<Func<TSource, bool>> predicate, CancellationToken cancellationToken = null )
Public Shared Function AnyAsync(Of TSource) ( source As IMongoQueryable(Of TSource), predicate As Expression(Of Func(Of TSource, Boolean)), Optional cancellationToken As CancellationToken = Nothing ) As Task(Of Boolean)[] static member AnyAsync : source : IMongoQueryable<'TSource> * predicate : Expression<Func<'TSource, bool>> * ?cancellationToken : CancellationToken (* Defaults: let _cancellationToken = defaultArg cancellationToken null *) -> Task
Parameters
source
Type: MongoDB.Driver.LinqIMongoQueryableTSource
A sequence whose elements to test for a condition.
predicate
Type: System.Linq.ExpressionsExpressionFuncTSource, Boolean
A function to test each element for a condition.
cancellationToken (Optional)
Type: System.ThreadingCancellationToken
The cancellation token.
Type Parameters
TSource
The type of the elements of source.
Return Value
Type: TaskBoolean
true if any elements in the source sequence pass the test in the specified predicate; otherwise, false.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IMongoQueryableTSource. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
See Also