private void xemThôngTinToolStripMenuItem_Click(object sender, EventArgs e) { XemThongTinKhachHang frmXemTT = new XemThongTinKhachHang(); foreach (Form frm in MdiChildren) { frm.Close(); } frmXemTT.MdiParent = this; frmXemTT.Show(); }
private void xemThôngTinToolStripMenuItem_Click(object sender, EventArgs e) { XemThongTinKhachHang frmXemTT = new XemThongTinKhachHang(); hienForm(frmXemTT); }