Setting MdiParent from child form

Question

I have a principal form that contains a menu to open child form: ``` public Le_MainForm() { InitializeComponent(); this.IsMdiContainer = true; ..... } private void barButtonItem_CreatOrdreAller_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e) { Close_AllForm(); Program.StatusOrdre = 1; Program.AllerRetour = "Ordre Aller"; Fiche_Ordre f_Fiche = new Fiche_Ordre(); f_Fiche.MdiParent = this; f_Fiche.Show(); } ``` It works well, but I open another form from child, I lost MdiParent: ``` public Liste_Ordres() { InitializeComponent(); .... } private void Liste_DobleClic(object sender, EventArgs e) { Fiche_Ordre f_Fiche = new Fiche_Ordre(gridView_Liste_Ordres.GetFocusedRowCellValue("NO_ORDRE").ToString()); f_Fiche.ShowDialog(); } ```

Accepted Answer

Try setting the form like this:

```
Fiche_Ordre f_Fiche = new Fiche_Ordre(gridView_Liste_Ordres.GetFocusedRowCellValue("NO_ORDRE").ToString());
f_Fiche.MdiParent = this.MdiParent;
f_Fiche.Show();
```

`ShowDialog()` is for a pop-up modal form.

Setting MdiParent from child form

Solution

Problem