/// <summary>
 /// 打开服务器IP设置框
 /// </summary>
 private async void ExecuteServerDialog()
 {
     try
     {
         var view = new ServerDialog();
         ServerDialogViewModel = new ServerDialogViewModel();
         //show the dialog
         await DialogHost.Show(view, "RootDialog", ConfirSaveServerHandler);
     }
     catch (Exception ex)
     {
         ErrorDialogViewModel.getInstance().show(ex);
         return;
     }
 }
 public ServerDialogView(ServerDialogViewModel serverDialogViewModel)
 {
     InitializeComponent();
     _serverDialogViewModel = serverDialogViewModel;
     DataContext            = _serverDialogViewModel;
 }