private void ViewModelChanged(object sender, DependencyPropertyChangedEventArgs e)
        {
            this.viewModel_ = this.DataContext as SwapInfoViewModel;

            MainPanel_.DataContext = this.viewModel_;

        }
        private void ViewModelChanged(object sender, DependencyPropertyChangedEventArgs e)
        {
            this.viewModel_ = this.DataContext as SwapInfoViewModel;

            MainPanel_.DataContext = this.viewModel_;
        }