Messagebox doesn't get focus.

[Quetzalcoatl2435]

Messagebox pops up fine, but doesn't get focus. Can't use enter/esc to confirm/cancel.
The user has to tab twice first to set focus to messagebox.

With show as popup it's even worse because the focus is at the top element of the page. The user has to tab through all elements on page before getting to the popup.

[mitnick2012]

I have the same issue any suggestions for a solution?

[crh2021]

I have the same issue.
IsDefault = true
does not work. button "OK" not get focus as expected.

    var messageBox = MessageBoxManager.GetMessageBoxCustom(new MessageBoxCustomParams
    {
        ContentTitle = "Custom Dialog",
        ContentMessage = "This is a dialog with multiple buttons.",
        ButtonDefinitions = new[]
        {
            new ButtonDefinition { Name = "OK", IsDefault = true },
            new ButtonDefinition { Name = "Cancel" },
            new ButtonDefinition { Name = "Ignore" }
        },
        WindowStartupLocation = WindowStartupLocation.CenterOwner
    });