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Runspace02 – exempel

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  • 2 minuter för att läsa

Det här exemplet visar hur du använder klassen System.Management.Automation.Powershell för att köra cmdletarna Get-Process och Sort-Object synkront. Cmdleten Get-Process returnerar System.Diagnostics.Process-objekt för varje process som körs på den lokala datorn och sorterar objekten baserat på Sort-Object deras System.Diagnostics.Process.Id*. Resultatet av dessa kommandon visas med hjälp av en System.Windows. Forms.Datagridview-kontroll.

Krav

Det här exemplet kräver Windows PowerShell 2.0.

Demonstrationer

Det här exemplet visar följande.

Exempel

Det här exemplet kör cmdletarna Get-Process och Sort-Object synkront i standard-runspace som tillhandahålls av Windows PowerShell. Utdata visas i ett formulär med hjälp av en System.Windows. Forms.Datagridview-kontroll.

namespace Microsoft.Samples.PowerShell.Runspaces
{
  using System;
  using System.Collections;
  using System.Collections.ObjectModel;
  using System.Management.Automation;
  using System.Management.Automation.Runspaces;
  using System.Windows.Forms;
  using PowerShell = System.Management.Automation.PowerShell;

  /// <summary>
  /// This class contains the Main entry point for this host application.
  /// </summary>
  internal class Runspace02
  {
    /// <summary>
    /// This method creates the form where the output is displayed.
    /// </summary>
    private static void CreateForm()
    {
      Form form = new Form();
      DataGridView grid = new DataGridView();
      form.Controls.Add(grid);
      grid.Dock = DockStyle.Fill;

      // Create a PowerShell object. Creating this object takes care of
      // building all of the other data structures needed to run the command.
      using (PowerShell powershell = PowerShell.Create())
      {
        powershell.AddCommand("get-process").AddCommand("sort-object").AddArgument("ID");
        if (Runspace.DefaultRunspace == null)
        {
          Runspace.DefaultRunspace = powershell.Runspace;
        }

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

        // The generic collection needs to be re-wrapped in an ArrayList
        // for data-binding to work.
        ArrayList objects = new ArrayList();
        objects.AddRange(results);

        // The DataGridView will use the PSObjectTypeDescriptor type
        // to retrieve the properties.
        grid.DataSource = objects;
      }

      form.ShowDialog();
    }

    /// <summary>
    /// This sample uses a PowerShell object to run the Get-Process
    /// and Sort-Object cmdlets synchronously. Windows Forms and
    /// data binding are then used to display the results in a
    /// DataGridView control.
    /// </summary>
    /// <param name="args">The parameter is not used.</param>
    /// <remarks>
    /// This sample demonstrates the following:
    /// 1. Creating a PowerShell object.
    /// 2. Adding commands and arguments to the pipeline of
    ///    the PowerShell object.
    /// 3. Running the commands synchronously.
    /// 4. Using a DataGridView control to display the output
    ///    of the commands in a Windows Forms application.
    /// </remarks>
    private static void Main(string[] args)
    {
      Runspace02.CreateForm();
    }
  }
}

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