Exemple de code RunSpace03 (C#)
Voici le code source C# de l’application console décrite dans « Création d’une application console qui exécute un script spécifié ». Cet exemple utilise la classe System.Management.Automation.RunspaceInvoke pour exécuter un script qui récupère des informations de processus à l’aide de la liste des noms de processus passés dans le script. Il montre comment passer des objets d’entrée à un script et comment récupérer des objets d’erreur ainsi que les objets de sortie.
Remarque
Vous pouvez télécharger le fichier source C# (runspace03.cs) pour cet exemple à l’aide du Kit de développement logiciel Microsoft Windows pour Windows Vista et microsoft .NET Framework 3.0 Runtime Components. Pour obtenir des instructions de téléchargement, consultez Comment installer Windows PowerShell et télécharger le Kit de développement logiciel (SDK) Windows PowerShell. Les fichiers sources téléchargés sont disponibles dans le répertoire <Exemples PowerShell>.
Exemple de code
namespace Microsoft.Samples.PowerShell.Runspaces
{
using System;
using System.Collections;
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 Runspace03
{
/// <summary>
/// This sample uses the PowerShell class to execute
/// a script that retrieves process information for the
/// list of process names passed into the script.
/// It shows how to pass input objects to a script and
/// how to retrieve error objects as well as the output objects.
/// </summary>
/// <param name="args">Parameter not used.</param>
/// <remarks>
/// This sample demonstrates the following:
/// 1. Creating an instance of the PowerSHell class.
/// 2. Using this instance to execute a string as a PowerShell script.
/// 3. Passing input objects to the script from the calling program.
/// 4. Using PSObject to extract and display properties from the objects
/// returned by this command.
/// 5. Retrieving and displaying error records that were generated
/// during the execution of that script.
/// </remarks>
private static void Main(string[] args)
{
// Define a list of processes to look for
string[] processNames = new string[]
{
"lsass", "nosuchprocess", "services", "nosuchprocess2"
};
// The script to run to get these processes. Input passed
// to the script will be available in the $input variable.
string script = "$input | get-process -name {$_}";
// Create an instance of the PowerShell class.
using (PowerShell powershell = PowerShell.Create())
{
powershell.AddScript(script);
Console.WriteLine("Process HandleCount");
Console.WriteLine("--------------------------------");
// Now invoke the PowerShell and display the objects that are
// returned...
foreach (PSObject result in powershell.Invoke(processNames))
{
Console.WriteLine(
"{0,-20} {1}",
result.Members["ProcessName"].Value,
result.Members["HandleCount"].Value);
}
// Now process any error records that were generated while running the script.
Console.WriteLine("\nThe following non-terminating errors occurred:\n");
PSDataCollection<ErrorRecord> errors = powershell.Streams.Error;
if (errors != null && errors.Count > 0)
{
foreach (ErrorRecord err in errors)
{
System.Console.WriteLine(" error: {0}", err.ToString());
}
}
}
System.Console.WriteLine("\nHit any key to exit...");
System.Console.ReadKey();
}
}
}
