从C＃获取Powershell错误

问题描述

问题

我正在从c＃调用powershell命令，但 PowerShell 命令对象似乎仅具有属性 bool HasErrors ，这无法帮助我知道我收到的什么错误。

I am invoking powershell commands from c# however, the PowerShell command object only seems to have the property bool HasErrors which doesn't help me know what error I received.

这就是我构建Powershell命令的方式

This is how I build my powershell command

库

public static class PowerSheller
{
    public static Runspace MakeRunspace()
    {
        InitialSessionState session = InitialSessionState.CreateDefault();
        Runspace runspace = RunspaceFactory.CreateRunspace(session);
        runspace.Open();

        return runspace;
    }

    public static PowerShell MakePowershell(Runspace runspace)
    {
        PowerShell command = PowerShell.Create();
        command.Runspace = runspace;

        return command;
    }
}

调用Move-Vm cmdlet

using (Runspace runspace = PowerSheller.MakeRunspace())
{
    using (PowerShell command = PowerSheller.MakePowershell(runspace))
    {
        command.AddCommand("Move-VM");
        command.AddParameter("Name", arguments.VMName);
        command.AddParameter("ComputerName", arguments.HostName);
        command.AddParameter("DestinationHost", arguments.DestinationHostName);

        if (arguments.MigrateStorage)
        {
            command.AddParameter("IncludeStorage");
            command.AddParameter("DestinationStoragePath", arguments.DestinationStoragePath);
        }

        try
        {
            IEnumerable<PSObject> results = command.Invoke();
            success = command.HasErrors;
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
        }
    }
}

我期待某种因失败而引发的异常，但它返回0个对象。虽然 HasErrors 将导致知道命令是否成功；我仍然不确定如何获取特定错误，因为不会引发异常。

I was expecting some sort of exception to be thrown on failure, but instead it returns 0 objects. While HasErrors will result in knowing if the command was successful or not; I'm still not sure how to get the specific error, as no exception is thrown.

谢谢

推荐答案

要查看错误，请查看集合 PowerShell.Streams.Error 或代码 command.Streams。错误。

To see the errors look at the collection PowerShell.Streams.Error or in your code command.Streams.Error.

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