private void navBarItem5_LinkClicked(object sender, DevExpress.XtraNavBar.NavBarLinkEventArgs e)
{
frmThemKhachHang frm = new frmThemKhachHang();
frm.ShowDialog();
}
private void barLargeButtonItem1_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
frmThemKhachHang frm = new frmThemKhachHang();
frm.ShowDialog();
}