如何等待脚本完成？

Question

I have three scripts which is invoked by the function below. while the first script is still running the subsequent commands get called which stops my first command from finishing.

public static void InvokePowerShellCommand(this string command)
{
   var powerShell = PowerShell.Create();
   powerShell.AddScript(command).Invoke();            
}

I would like to ensure that the script finishes before proceeding to the next one, how can I achieve this?

Answer 1

Add an event handler to the call, a really simple example would be

    private static PSInvocationState state;
    public static void InvokePowerShellCommand(this string command)
    {
        state = PSInvocationState.NotStarted;
        PowerShell ps = PowerShell.Create();
        ps.InvocationStateChanged += new EventHandler<PSInvocationStateChangedEventArgs>(InvocationStateChanged);
        ps.AddScript(command);
        ps.Invoke();
        while (state == PSInvocationState.Running)
            System.Threading.Thread.Sleep(100);

    }

    static void InvocationStateChanged(object sender, PSInvocationStateChangedEventArgs e)
    {
        state = e.InvocationStateInfo.State;
    }