private void toolStripButton9_Click(object sender, EventArgs e)
        {
            AddVideo frm = new AddVideo();

            frm.MdiParent = this;
            frm.Show();
        }
        private void addNewVideosToolStripMenuItem_Click(object sender, EventArgs e)
        {
            AddVideo frm = new AddVideo();

            frm.MdiParent = this;
            frm.Show();
        }