private void btnCongNoThu_Click(object sender, EventArgs e)
        {
            FrmCongNoThu frm = new FrmCongNoThu();

            //frm.ShowDialog();
            CreateTab(stcMenu, "Công Nợ Thu", "stiCNThu", "stcpCNThu", frm);
        }
 private void btnCongNoThu_Click(object sender, EventArgs e)
 {
     FrmCongNoThu frm = new FrmCongNoThu();
     //frm.ShowDialog();
     CreateTab(stcMenu, "Công Nợ Thu", "stiCNThu", "stcpCNThu", frm);
 }