private void thoátToolStripMenuItem1_Click(object sender, EventArgs e) { FrmDanhMucKhachHang frmKH = new FrmDanhMucKhachHang(); frmKH.MdiParent = this; frmKH.Show(); }
private void kháchHàngToolStripMenuItem_Click(object sender, EventArgs e) { FrmDanhMucKhachHang frmDMKH = new FrmDanhMucKhachHang(); frmDMKH.Show(); }