C# 代码重启windows服务

我想直接用C#代码重启windows服务，经过试验，没有问题，贴出来保存收藏！

C#代码：

ServiceController service = new ServiceController("EnergyRecordService");
protected void btnRestart_Click(object sender, EventArgs e)
    {
        try
        {
            if (service.Status == ServiceControllerStatus.Running)
            {
                service.Stop();
                service.WaitForStatus(ServiceControllerStatus.Stopped);
            }
            service.Start();
            service.WaitForStatus(ServiceControllerStatus.Running);

        }
        catch (Exception)
        {
        }
    }

Web.Config 配置文件：

如果配置文件不配置这个的话会报一个错误：

Win32Exception (0x80004005): Access is denied 
[InvalidOperationException: Cannot open EnergyRecordService service on computer '.'.]

<system.web> 
 
<identity impersonate="true" userName="服务器登录名" password="登录密码"/> 
 
</system.web>