Pipeline.Invoke Method () (System.Management.Automation.Runspaces)

Pipeline.Invoke Method () (System.M...

Pipeline.Invoke Method ()

Invokes the pipeline synchronously.

Namespace: System.Management.Automation.Runspaces
Assembly: System.Management.Automation (in system.management.automation.dll)

Usage

Dim instance As Pipeline
Dim returnValue As Collection(Of PSObject)

returnValue = instance.Invoke

Syntax

Visual Basic

Public Function Invoke As Collection(Of PSObject)

public Collection<PSObject> Invoke ()

C++

public:
Collection<PSObject^>^ Invoke ()

public Collection<PSObject> Invoke ()

JScript

public function Invoke () : Collection<PSObject>

Return Value

An array of objects that contain the output of the pipeline. If the pipeline has no output, an emptycollection is returned.

Example

Here is an example of calling this method after the pipeline is created.

Pipeline pipeLine = myRunSpace.CreatePipeline("GetProcPSSnapIn01\\get-proc");
Collection<PSObject> results = pipeLine.Invoke();

For an example of applications that use this class, see:

Configuring a Runspace Using RunspaceConfiguration

Configuring a Runspace Using a PowerShell Snap-in

Remarks

When this method is used to invoke the pipeline, the Windows PowerShell runtime closes the Input pipe.

This method cannot be called when another pipeline is running.

This method cannot be called multiple times on a given pipeline. The state of the pipeline must be NotStarted when Invoke is called. When this method is called, it changes the state of the pipeline to Running. When Invoke is completed, it changes the state of the pipeline to one of following:

Completed: The pipeline state is Completed if the pipeline invocation completed successfully.
Failed: The pipeline state is Failed if the pipeline invocation failed or one of the commands in the pipeline threw a terminating error.
Stopped: The pipeline state is Stopped if the pipeline was stopped by calling Stop or StopAsync.

Applications can get notified about pipeline state changes by registering for the StateChanged event. This event is raised each time the state of the pipeline changes.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Platforms

Development Platforms

Windows Server 2008, Windows Vista, Windows Server 2003, Windows XP, Windows 7, Windows 2008 R2

Target Platforms

Windows Server 2008, Windows Server 2003, Windows Vista, Windows XP, Windows 7, Windows 2008 R2

Reference

Pipeline Class
Pipeline Members
System.Management.Automation.Runspaces Namespace
Stop
StopAsync

Other Resources

Windows PowerShell SDK