Compartir a través de

Ejemplo Runspace10

En este ejemplo se muestra cómo crear un estado de sesión inicial predeterminado, cómo agregar un cmdlet al System.Management.Automation.Runspaces.InitialSessionState, cómo crear un espacio de ejecución que use el estado de sesión inicial y cómo ejecutar el comando mediante un objeto System.Management.Automation.PowerShell.

Requisitos

Este ejemplo requiere Windows PowerShell 2.0.

Demostraciones

En este ejemplo se muestra lo siguiente.

Ejemplo

En este ejemplo se crea un espacio de ejecución que usa un objeto System.Management.Automation.Runspaces.InitialSessionState para definir los elementos que están disponibles cuando se abre el espacio de ejecución. En este ejemplo, el cmdlet Get-Proc (definido por la aplicación host) se agrega al estado de sesión inicial y el cmdlet se ejecuta de forma sincrónica mediante un objeto System.Management.Automation.PowerShell.

namespace Microsoft.Samples.PowerShell.Runspaces
{
  using System;
  using System.Collections.Generic;
  using System.Collections.ObjectModel;
  using System.Diagnostics;
  using System.Management.Automation;
  using System.Management.Automation.Runspaces;
  using PowerShell = System.Management.Automation.PowerShell;

  #region GetProcCommand

  /// <summary>
  /// Class that implements the GetProcCommand.
  /// </summary>
  [Cmdlet(VerbsCommon.Get, "Proc")]
  public class GetProcCommand : Cmdlet
  {
    #region Cmdlet Overrides

    /// <summary>
    /// For each of the requested process names, retrieve and write
    /// the associated processes.
    /// </summary>
    protected override void ProcessRecord()
    {
      // Get the current processes.
      Process[] processes = Process.GetProcesses();

      // Write the processes to the pipeline making them available
      // to the next cmdlet. The second argument (true) tells the
      // system to enumerate the array, and send one process object
      // at a time to the pipeline.
      WriteObject(processes, true);
    }

    #endregion Overrides
  } // End GetProcCommand class.

  #endregion GetProcCommand

  /// <summary>
  /// This class contains the Main entry point for this host application.
  /// </summary>
  internal class Runspace10
  {
    /// <summary>
    /// This sample shows how to create a default initial session state, how to add
    /// add a cmdlet to the InitialSessionState object, and then how to create
    /// a Runspace object.
    /// </summary>
    /// <param name="args">Parameter is not used.</param>
    /// This sample demonstrates:
    /// 1. Creating an InitialSessionState object.
    /// 2. Adding a cmdlet to the InitialSessionState object.
    /// 3. Creating a runspace that uses the InitialSessionState object.
    /// 4. Creating a PowerShell object that uses the Runspace object.
    /// 5. Running the added command synchronously.
    /// 6. Working with PSObject objects to extract properties
    ///    from the objects returned by the pipeline.
    private static void Main(string[] args)
    {
      // Create a default InitialSessionState object. The default
      // InitialSessionState object contains all the elements provided
      // by Windows PowerShell.
      InitialSessionState iss = InitialSessionState.CreateDefault();

      // Add the Get-Proc cmdlet to the InitialSessionState object.
      SessionStateCmdletEntry ssce = new SessionStateCmdletEntry("Get-Proc", typeof(GetProcCommand), null);
      iss.Commands.Add(ssce);

      // Create a Runspace object that uses the InitialSessionState object.
      // Notice that no PSHost object is specified, so the default host is used.
      // See the Hosting samples for information on creating your own custom host.
      using (Runspace myRunSpace = RunspaceFactory.CreateRunspace(iss))
      {
        myRunSpace.Open();

        using (PowerShell powershell = PowerShell.Create())
        {
          powershell.Runspace = myRunSpace;

          // Add the Get-Proc cmdlet to the pipeline of the PowerShell object.
          powershell.AddCommand("Get-Proc");

          Collection<PSObject> results = powershell.Invoke();

          Console.WriteLine("Process              HandleCount");
          Console.WriteLine("--------------------------------");

          // Display the output of the pipeline.
          foreach (PSObject result in results)
          {
             Console.WriteLine(
                               "{0,-20} {1}",
                               result.Members["ProcessName"].Value,
                               result.Members["HandleCount"].Value);
          }
        }

        // Close the runspace to release resources.
        myRunSpace.Close();
      }

      System.Console.WriteLine("Hit any key to exit...");
      System.Console.ReadKey();
    }
  }
}

Véase también

escribir una aplicación host de Windows PowerShell

  • Last updated on