我将如何从PowerShell中对象或多个值返回到执行的C＃代码 [英] How would I return an object or multiple values from PowerShell to executing C# code

问题描述

一些C＃代码执行带有参数的PowerShell脚本。我希望得到一个返回码和一个字符串从Powershell的背就知道了，如果一切是PowerShell脚本内确定。

Some C# code executes a powershell script with arguments. I want to get a returncode and a string back from Powershell to know, if everything was ok inside the Powershell script.

什么是做正确的方式 - 在这两个PowerShell和C＃

What is the right way to do that - in both Powershell and C#

# Powershell script
# --- Do stuff here ---
# Return an int and a string - how?
# In c# I would do something like this, if this was a method:

# class ReturnInfo
# {
#    public int ReturnCode;
#    public string ReturnText;
# }

# return new ReturnInfo(){ReturnCode =1, ReturnText = "whatever"};

C＃

C#

void RunPowershellScript(string scriptFile, List<string> parameters)
    {

        RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();

        using (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 parameters)
            {
                CommandParameter commandParm = new CommandParameter(null, scriptParameter);
                commandParameters.Add(commandParm);
                scriptCommand.Parameters.Add(commandParm);
            }
            pipeline.Commands.Add(scriptCommand);
            Collection<PSObject> psObjects;
            psObjects = pipeline.Invoke();

            //What to do here?
            //ReturnInfo returnInfo = pipeline.DoMagic();

        }
    }

  class ReturnInfo
  {
      public int ReturnCode;
      public string ReturnText;
  }

我已成功地做到这一点是通过写输出一些哈克的方式和依托像最后两个psObjects是我要找的价值观，但它会破坏很容易习惯。

I have managed to do this is some hacky ways by using Write-Output and relying on conventions like "last two psObjects are the values I am looking for", but it would break very easily.

推荐答案

在

[hashtable]$Return = @{} 
$Return.ReturnCode = [int]1 
$Return.ReturnString = [string]"All Done!" 
Return $Return 

在C＃代码处理Psobject这样

In C# code handle the Psobject in this way

 ReturnInfo ri = new ReturnInfo();
 foreach (PSObject p in psObjects)
 {
   Hashtable ht = p.ImmediateBaseObject as Hashtable;
   ri.ReturnCode = (int)ht["ReturnCode"];
   ri.ReturnText = (string)ht["ReturnString"];
 } 

//Do what you want with ri object.

如果你想在PowerShell中V2.0使用PsCustomobject作为基思山评论：

If you want to use a PsCustomobject as in Keith Hill comment in powershell v2.0:

PowerShell脚本：

powershell script:

$return = new-object psobject -property @{ReturnCode=1;ReturnString="all done"}
$return

C＃代码：

ReturnInfo ri = new ReturnInfo();
foreach (PSObject p in psObjects)
   {
     ri.ReturnCode = (int)p.Properties["ReturnCode"].Value;
     ri.ReturnText = (string)p.Properties["ReturnString"].Value;
   }

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