private void Button_Click(object sender, System.Windows.RoutedEventArgs e)
        {
            var dialog = new OpenFileDialog();

            dialog.Multiselect = false;
            dialog.Filter      = "*.ppk|*.ppk|*.*|*.*";

            if (dialog.ShowDialog() == true)
            {
                TextBox_File.Clear();
                TextBox_File.AppendText(dialog.FileName);
                TextBox_File.GetBindingExpression(TextBox.TextProperty).UpdateSource();
            }
        }
        private void Button_Click(object sender, System.Windows.RoutedEventArgs e)
        {
            var dialog = new SaveFileDialog();

            dialog.FileName = Path.GetFileName(TextBox_File.Text);
            dialog.Filter   = "*.json|*.json";

            if (dialog.ShowDialog() == true)
            {
                TextBox_File.Clear();
                TextBox_File.AppendText(dialog.FileName);
                TextBox_File.GetBindingExpression(TextBox.TextProperty).UpdateSource();
            }
        }