private void LoaiHinh_Click_1(object sender, EventArgs e)
 {
     if (LoaiHinhfrm == null || LoaiHinhfrm.IsDisposed)
     {
         LoaiHinhfrm           = new frmLoaiHinh();
         LoaiHinhfrm.MdiParent = this;
         LoaiHinhfrm.Show();
     }
     else
     {
         LoaiHinhfrm.Activate();
     }
 }
Esempio n. 2
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        private void ThemLoaiHinh_Click(object sender, EventArgs e)
        {
            frmLoaiHinh LH = new frmLoaiHinh();

            LH.ShowDialog();
        }