private void btnHoSo_Click(object sender, EventArgs e)
        {
            frmHoSo frm = new frmHoSo();

            foreach (Form f in this.ParentForm.MdiChildren)
            {
                if (f.Name == frm.Name)
                {
                    f.Activate();
                    frm = (frmHoSo)f;
                    frm.LoadHoSo(txtSoDKKBBHYT.Text);
                    return;
                }

            }

            frm.MdiParent = this.ParentForm;
            frm.WindowState = FormWindowState.Maximized;
            frm.m_LoaiBangKe = m_LoaiBangKe;
            frm.Show();
            frm.LoadHoSo(txtSoDKKBBHYT.Text);
        }
        private void mnuNhapHoSo03_Click(object sender, EventArgs e)
        {
            frmHoSo frm = new frmHoSo();

            //frm.Text = "Bảng kê chi phí KCB ngoại trú (03/TYT)";

            foreach (Form f in this.MdiChildren)
            {
                if (f.Name == frm.Name && frm.m_LoaiBangKe == 2)
                {
                    f.Activate();
                    return;
                }

            }

            frm.MdiParent = this;
            frm.WindowState = FormWindowState.Maximized;
            frm.m_LoaiBangKe = 03;

            frm.Show();
        }
        private void mnuNhapHoSo02_Click(object sender, EventArgs e)
        {
            frmHoSo frm = new frmHoSo();

            //frm.Text = "Bảng kê chi phí KCB Nội trú (02/BV)";

            foreach (Form f in this.MdiChildren)
            {
                if (f.Name == frm.Name)
                {
                    if (((frmHoSo)f).m_LoaiBangKe == 2)
                    {
                        frm.Dispose();
                        GC.Collect();
                        f.Activate();
                        return;
                    }
                }

            }
            frm.MdiParent = this;
            frm.WindowState = FormWindowState.Maximized;
            frm.m_LoaiBangKe = 02;

            frm.Show();
        }