Qbservable.Any(TSource) Method (IQbservable(TSource), Expression(Func(TSource, Boolean)))

Determines whether all elements of a queryable observable sequence satisfies a condition.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive.Providers (in System.Reactive.Providers.dll)

JScript does not support generic types and methods.

Type Parameters


The type of source.


Type: System.Reactive.Linq.IQbservable(TSource)
A queryable observable sequence whose elements to apply the predicate to.
Type: System.Linq.Expressions.Expression(Func(TSource, Boolean))
A function to test each element for a condition.

Return Value

Type: System.Reactive.Linq.IQbservable(Boolean)
True if all elements of a queryable observable sequence satisfies a condition; otherwise, false.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQbservable(TSource). When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.103).aspx or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.103).aspx.