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EnumerableExDoTSource Method (IEnumerableTSource, IObserverTSource)
Lazily invokes observer methods for each value in the sequence, and upon successful or exceptional termination.

Namespace: System.Linq
Assembly: System.Interactive (in System.Interactive.dll) Version: 1.2.0.0
Syntax
C#
public static IEnumerable<TSource> Do<TSource>(
	this IEnumerable<TSource> source,
	IObserver<TSource> observer
)

Parameters

source
Type: System.Collections.GenericIEnumerableTSource
Source sequence.
observer
Type: SystemIObserverTSource
Observer to invoke notification calls on.

Type Parameters

TSource
Source sequence element type.

Return Value

Type: IEnumerableTSource
Sequence exhibiting the side-effects of observer method invocation upon enumeration.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerableTSource. 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