private void barButtonItem3_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
FrmDepo depo = new FrmDepo();
depo.MdiParent = this;
depo.Show();
}
private void barButtonItem4_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
FrmDepo form = new FrmDepo();
form.MdiParent = this;
form.Show();
}