Runspace06 Sample
This sample shows how to add a module to a System.Management.Automation.Runspaces.Initialsessionstate object so that the module is loaded when the runspace is opened. The module provides a Get-Proc cmdlet (defined by the GetProcessSample02 Sample) that is run synchronously by using a System.Management.Automation.Powershell object.
Requirements
This sample requires Windows PowerShell 2.0.
Demonstrates
This sample demonstrates the following.
Creating a System.Management.Automation.Runspaces.Initialsessionstate object.
Adding the module to the System.Management.Automation.Runspaces.Initialsessionstate object.
Creating a System.Management.Automation.Runspaces.Runspace object that uses the System.Management.Automation.Runspaces.Initialsessionstate object.
Creating a System.Management.Automation.Powershell object that uses the runspace.
Adding the module's get-proc cmdlet to the pipeline of the System.Management.Automation.Powershell object.
Running the command synchronously.
Extracting properties from the System.Management.Automation.PSObject objects returned by the command.
Example
This sample creates a runspace that uses a System.Management.Automation.Runspaces.Initialsessionstate object to define the elements that are available when the runspace is opened. In this sample, a module that defines a Get-Proc cmdlet is added to the initial session state.
namespace Microsoft.Samples.PowerShell.Runspaces
{
using System;
using System.Collections.ObjectModel;
using System.Management.Automation;
using System.Management.Automation.Runspaces;
using PowerShell = System.Management.Automation.PowerShell;
/// <summary>
/// This class contains the Main entry point for this host application.
/// </summary>
internal class Runspace06
{
/// <summary>
/// This sample shows how to define an initial session state that is
/// used when creating a runspace. The sample invokes a command from
/// a binary module that is loaded by the initial session state.
/// </summary>
/// <param name="args">Parameter not used.</param>
/// <remarks>
/// This sample assumes that user has copied the GetProcessSample02.dll
/// that is produced by the GetProcessSample02 sample to the current
/// directory.
/// This sample demonstrates the following:
/// 1. Creating a default initial session state.
/// 2. Adding a module to the initial session state.
/// 3. Creating a runspace that uses the initial session state.
/// 4. Creating a PowerShell object that uses the runspace.
/// 5. Adding the module's get-proc cmdlet to the PowerShell object.
/// 6. Running the command synchronously.
/// 7. Using PSObject objects to extract and display properties from
/// the objects returned by the cmdlet.
/// </remarks>
private static void Main(string[] args)
{
// Create the default initial session state and add the module.
InitialSessionState iss = InitialSessionState.CreateDefault();
iss.ImportPSModule(new string[] { @".\GetProcessSample02.dll" });
// Create a runspace. Notice that no PSHost object is supplied to the
// CreateRunspace method so the default host is used. See the Host
// samples for more information on creating your own custom host.
using (Runspace myRunSpace = RunspaceFactory.CreateRunspace(iss))
{
myRunSpace.Open();
// Create a PowerShell object.
using (PowerShell powershell = PowerShell.Create())
{
// Add the cmdlet and specify the runspace.
powershell.AddCommand(@"GetProcessSample02\get-proc");
powershell.Runspace = myRunSpace;
Collection<PSObject> results = powershell.Invoke();
Console.WriteLine("Process HandleCount");
Console.WriteLine("--------------------------------");
// Display the results.
foreach (PSObject result in results)
{
Console.WriteLine(
"{0,-20} {1}",
result.Members["ProcessName"].Value,
result.Members["HandleCount"].Value);
}
}
// Close the runspace to release any resources.
myRunSpace.Close();
}
System.Console.WriteLine("Hit any key to exit...");
System.Console.ReadKey();
}
}
}
See Also
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