此示例演示如何将命令和参数添加到 System.Management.Automation.PowerShell 对象的管道，以及如何同步运行命令。
要求
此示例需要 Windows PowerShell 2.0。
演示
此示例演示了以下内容。
使用 System.Management.Automation.Runspaces.RunspaceFactory 类创建 System.Management.Automation.Runspaces.Runspaces.Runspace 对象。
创建使用 runspace 的 System.Management.Automation.PowerShell 对象。
将 cmdlet 添加到 System.Management.Automation.PowerShell 对象的管道。
同步运行 cmdlet。
从命令返回 System.Management.Automation.PSObject 对象中提取属性。
示例
此示例使用 System.Management.Automation.PowerShell 对象运行 Get-Process 和 Sort-Object cmdlet。
namespace Microsoft.Samples.PowerShell.Runspaces
{
using System;
using System.Collections.Generic;
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 Runspace08
{
/// <summary>
/// This sample shows how to use a PowerShell object to run commands. The
/// PowerShell object builds a pipeline that include the Get-Process cmdlet,
/// which is then piped to the Sort-Object cmdlet. Parameters are added to the
/// Sort-Object cmdlet to sort the HandleCount property in descending order.
/// </summary>
/// <param name="args">Parameter is not used.</param>
/// <remarks>
/// This sample demonstrates:
/// 1. Creating a PowerShell object
/// 2. Adding individual commands to the PowerShell object.
/// 3. Adding parameters to the commands.
/// 4. Running the pipeline of the PowerShell object synchronously.
/// 5. Working with PSObject objects to extract properties
/// from the objects returned by the commands.
/// </remarks>
private static void Main(string[] args)
{
Collection<PSObject> results; // Holds the result of the pipeline execution.
// Create the PowerShell object. Notice that no runspace is specified so a
// new default runspace is used.
PowerShell powershell = PowerShell.Create();
// Use the using statement so that we can dispose of the PowerShell object
// when we are done.
using (powershell)
{
// Add the Get-Process cmdlet to the pipeline of the PowerShell object.
powershell.AddCommand("Get-Process");
// Add the Sort-Object cmdlet and its parameters to the pipeline of
// the PowerShell object so that we can sort the HandleCount property
// in descending order.
powershell.AddCommand("Sort-Object").AddParameter("Descending").AddParameter("Property", "HandleCount");
// Run the commands of the pipeline synchronously.
results = powershell.Invoke();
}
// Even after disposing of the PowerShell object, we still
// need to set the powershell variable to null so that the
// garbage collector can clean it up.
powershell = null;
Console.WriteLine("Process HandleCount");
Console.WriteLine("--------------------------------");
// Display the results returned by the commands.
foreach (PSObject result in results)
{
Console.WriteLine(
"{0,-20} {1}",
result.Members["ProcessName"].Value,
result.Members["HandleCount"].Value);
}
System.Console.WriteLine("Hit any key to exit...");
System.Console.ReadKey();
}
}
}
