private void button3_Click(object sender, EventArgs e)
        {
            ViewMgf vm = new ViewMgf();

            vm.Show();
        }
 private void viewAllToolStripMenuItem_Click(object sender, EventArgs e)
 {
     ViewMgf vmf = new ViewMgf();
     vmf.Show();
 }
 private void button3_Click(object sender, EventArgs e)
 {
     ViewMgf vm = new ViewMgf();
     vm.Show();
 }
        private void viewAllToolStripMenuItem_Click(object sender, EventArgs e)
        {
            ViewMgf vmf = new ViewMgf();

            vmf.Show();
        }