private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
 {
     m_instance = null;
     this.Hide();
     //e.Cancel = true;
 }
 public static NewProjectWindow GetInstance()
 {
     if (m_instance == null)
     {
         m_instance = new NewProjectWindow();
     }
     return m_instance;
 }