private void AddModel_Click(object sender, RoutedEventArgs e)
        {
            NewElement element = new NewElement();

            if (element.ShowDialog() == true)
            {
                DataBase.AddNewModel(element.NameBox.Text);
            }
        }
        private void AddSoftType(object sender, RoutedEventArgs e)
        {
            NewElement element = new NewElement();

            if (element.ShowDialog() == true)
            {
                XMLWorker.AddSoftType(element.NameBox.Text);
                SoftType.Items.Add(element.NameBox.Text);
            }
        }