DialogHost Disappears Question

まだ誰も着手していません。

Hi,

I started using DialogHost to popup a dialog to edit some properties of a currently selected item.
However if I switch dialogs while the Edit dialog is displayed, and then return back
the Edit dialog disappears and all I see is the gray parent dialog and no way to recover.

In MainWindows.xaml I have:

Basically the same structure as the MaterialDesign demo, where I have a DrawerHost to popup
the main menu views that you can select from (Home, Inventory, Billing, etc.)
One of the menu items is "Inventory"

In InventoryViewControl.xaml I have another DialogHost so I can popup edit controls for selected items.

In the ViewModel for the InventoryViewControl I have:

private async void OnEditOwnerDialog(object _)
{
// The view associated with this model is defined in InventoryViewControl.xaml !!
var model = new OwnerViewControlModel(SelectedOwnerId);
object result = await MaterialDesignThemes.Wpf.DialogHost.Show(model, "Inventory");
SaveOrCancel answer = (SaveOrCancel)(result ?? SaveOrCancel.None);
switch(answer)
{

In the picture below, showing the RootDialog Drawer menu, the Inventory in the background
and the Owner Information from the OwnerViewControl showing.

If I select "Billing" it switches to Billing, and then when I come back to "Inventory"
all I see is the gray inventory and the OwnerViewControl is not showing and no way to
get it.

Is there an event that I can use to make it pop back up, or would it better to try
to prevent the RootDialog from being able to select a different item?


Thoughts?

MainWindows.xaml と InventoryViewControl.xaml から始め、RootDialog と Inventory として識別されるネストされた DialogHost 要素に注目します。Inventory ビューと Billing ビューを切り替える際に、OnEditOwnerDialog の呼び出しから DialogHost.Show までを追跡します。Done では、Inventory に戻るときの意図された動作を定義して検証する必要があります。所有者ダイアログが再表示可能なままになるか、ナビゲーションが適切に防止されることを確認します。

索引モデルが issue の本文から書いたものです。