通过SMO启动和停止SQL Server服务

Question

我试图通过带有SMO的c＃中的代码启动和停止MS SQL Server 2014（12.0.4487.0）。我用过这个： Starting SQL Server via C# 还有这个 ： https://technet.microsoft.com/en-us/library/ms162139%28v=sql.90%29.aspx 它们几乎相同 - 一个在c＃中，另一个在VB.NET中。

我的代码：

using Microsoft.SqlServer.Management.Smo.Wmi;
using System;

namespace TEST___SQL_Server
{
    class Program
    {
        static void Main(string[] args)
        {
            SQLStart.StartSQLService();
            Console.ReadLine();
        }
    }

    static class SQLStart
    {
        public static void StartSQLService()
        {
            //Declare and create an instance of the ManagedComputer object that represents the WMI Provider services.
            ManagedComputer mc = default(ManagedComputer);
            mc = new ManagedComputer();

            //Iterate through each service registered with the WMI Provider.
            Service svc = default(Service);
            foreach (Service s in mc.Services)
            {
                Console.WriteLine(s.Name);
            }

            //Reference the Microsoft SQL Server service.
            svc = mc.Services[0]; // this is my MSSQLSERVER service

            //Stop the service if it is running and report on the status continuously until it has stopped.
            if (svc.ServiceState != ServiceState.Running)
            {
                //Start the service and report on the status continuously until it has started.
                svc.Start();
                while (!(string.Format("{0}", svc.ServiceState) == "Running"))
                {

                    Console.WriteLine(string.Format("{0}", svc.ServiceState));
                    svc.Refresh();
                }
                Console.WriteLine(string.Format("{0} service state is {1}", svc.Name, svc.ServiceState));

                svc.Stop();

                Console.WriteLine(string.Format("{0} service state is {1}", svc.Name, svc.ServiceState));
                while (!(string.Format("{0}", svc.ServiceState) == "Stopped"))
                {
                    Console.WriteLine(string.Format("{0}", svc.ServiceState));
                    svc.Refresh();
                }
                Console.WriteLine(string.Format("{0} service state is {1}", svc.Name, svc.ServiceState));
            }
            else
            {
                Console.WriteLine("SQL Server service is not running.");
            }
        }
    }
}

我没有得到它但是当我在我的代码中svc.Start();启动SQL Server服务（有意且最初停止）时，没有任何事情发生。我一直接受服务停止的状态，从我的角度来看似乎没有发生任何事情。

我错过了什么，或者这个SMO根本不工作？ 感谢