c# - 从 C# 调用 Powershell 并处理异常

Question

我正在使用 Process.Start() 从 C# 调用 Powershell 脚本。如何捕获 C# 代码中 Powershell 脚本引发的异常？

Answer 1

在 C# 中托管 PowerShell 引擎非常简单。这段代码使用了有点过时的 API，但它仍然有效，并让您了解所涉及的内容:

string cmd = @"Get-ChildItem $home\Documents -recurse | " +
              "Where {!$_.PSIsContainer -and ($_.LastWriteTime -gt (Get-Date).AddDays(-7))} | " +
              "Sort Fullname | Foreach {$_.Fullname}";

Runspace runspace = null;
Pipeline pipeline = null;

try
{
    runspace = RunspaceFactory.CreateRunspace();
    runspace.Open();
    pipeline = runspace.CreatePipeline();
    pipeline.Commands.AddScript(cmd);
    Collection<PSObject> results = pipeline.Invoke();
    foreach (PSObject obj in results)
    {
        // Consume the results
        Debug.WriteLine(obj);    
    }
}
catch (Exception ex)
{
    Debug.WriteLine(ex);
}
finally
{
    if (pipeline != null) pipeline.Dispose();
    if (runspace != null) runspace.Dispose();
}