private void HìnhThứcĐảmBảo_Click(object sender, EventArgs e)
 {
     if (HTDamBaofrm == null || HTDamBaofrm.IsDisposed)
     {
         HTDamBaofrm           = new frmHTDamBao();
         HTDamBaofrm.MdiParent = this;
         HTDamBaofrm.Show();
     }
     else
     {
         HTDamBaofrm.Activate();
     }
 }
Esempio n. 2
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        private void btnThemhtdambao_Click(object sender, EventArgs e)
        {
            frmHTDamBao HTDB = new frmHTDamBao();

            HTDB.ShowDialog();
        }