c# - 如何通过 C# 将参数传递给 PowerShell

Question

我在通过 C# 向 PowerShell 传递参数时遇到问题

我收到以下异常:

"A command that prompts the user failed because the host program or the command type does not support user interaction. Try a host program that supports user interaction, such as the Windows PowerShell Console or Windows PowerShell ISE, and remove prompt-related commands from command types that do not support user interaction, such as Windows PowerShell workflows"

CS:

private static void RunPowershellScript(string scriptFile, string scriptParameters)
{
    string scriptParameters = "param1 param2";

    RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();
    Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfiguration);
    runspace.Open();
    RunspaceInvoke scriptInvoker = new RunspaceInvoke(runspace);
    Pipeline pipeline = runspace.CreatePipeline();
    Command scriptCommand = new Command(scriptFile);
    Collection<CommandParameter> commandParameters = new Collection<CommandParameter>();
    foreach (string scriptParameter in scriptParameters.Split(' '))
    {
        CommandParameter commandParm = new CommandParameter(null, scriptParameter);
        commandParameters.Add(commandParm);
        scriptCommand.Parameters.Add(commandParm);
    }
    pipeline.Commands.Add(scriptCommand);
    Collection<PSObject> psObjects;
    psObjects = pipeline.Invoke();
}

附言:

Function Foo ($arg1, $arg2)
{
    Write-Host $arg1
    Write-Host $arg2
}
Foo $args[0] $args[1]

我在这里错过了什么？我怎样才能使它工作？

Answer 1

异常与参数无关。要么不要使用需要实现主机 UI 的命令(包括 Write-Host)，要么实现您自己的自定义主机 (PSHost) 和此 UI (PSHostUserInterface) >).这是一个简单主机的示例(如果您选择这种方式，MSDN 上还有更多关于此的内容): http://msdn.microsoft.com/en-us/library/windows/desktop/ee706559(v=vs.85).aspx

对于简单的任务来说，实现一个带 UI 的主机可能就太多了。您可以考虑简单地定义一个具有相同参数的函数 Write-Host 并实现它，以便它在您的特定情况下工作(例如 [Console]::WriteLine(...) )。这个函数应该在脚本中定义或者更好地以不同的方式提供给它，例如调用另一个在全局范围内定义的脚本。

附言如果您有自定义主机，则使用 CreateRunspace() 重载之一，该重载将主机实例作为参数以链接主机和运行空间。