Exemplo n.º 1
0
        private void groupStudentsToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            GroupStudents l = GroupStudents.getInstance();

            l.Show();
            this.Hide();
        }
Exemplo n.º 2
0
 public static GroupStudents getInstance()
 {
     if (l == null)
     {
         l = new GroupStudents();
         l.Show();
         return(l);
     }
     else
     {
         return(l);
     }
 }