private void btnAdd_Click(object sender, EventArgs e)
        {
            AddAdvisor addAdvisor = AddAdvisor.GetInstance();

            addAdvisor.Show();
            this.Hide();
        }
 public static AddAdvisor GetInstance()
 {
     if (Instance == null)
     {
         AddAdvisor new_Instance = new AddAdvisor();
         return(new_Instance);
     }
     return(Instance);
 }