Null & InvalidCastException binding errors when opening dialogs in demo

[moon6969]

Usage Information

Material.Avalonia v3.9.1 / Avalonia 11.2.3 / Windows 11 10.0.22631

Description

Many binding errors when using DialogHelper.CreateAlertDialog().

Reproduction Steps

In VS2022 run the Material.Avalonia.Demo.Desktop app, go Dialogs → Standalone Dialog → Dialog with Confirmation.

Debug output shows errors (see Actual Behavior below).

Expected Behavior

No binding errors.

Actual Behavior

[Binding]An error occurred binding 'Text' to 'SelectedGroup.KindToCopy' at 'SelectedGroup': 'Value is null.' (TextBox #66697461)
[Binding]An error occurred binding 'Kind' to 'SelectedGroup.KindValue' at 'SelectedGroup': 'Value is null.' (MaterialIcon #24111608)
[Binding]An error occurred binding 'Width' to 'Width': 'Could not convert '(null)' (null) to 'System.Double'.' (DockPanel #PART_RootPanel)
[Binding]An error occurred binding 'MaxWidth' to 'MaxWidth': 'Could not convert '(null)' (null) to 'System.Double'.' (DockPanel #PART_RootPanel)
Exception thrown: 'System.InvalidCastException' in System.Private.CoreLib.dll
[Binding]An error occurred binding 'IsVisible' to '!!DialogIcon' at '!': 'Unable to convert 'Material.Dialog.ViewModels.Elements.Header.Icons.DialogIconViewModel' to bool.' (ContentPresenter #PART_HeaderIcon)
Exception thrown: 'System.InvalidCastException' in Material.Avalonia.Dialogs.dll
[Binding]An error occurred binding 'Content' to 'DialogIcon' at 'DialogIcon': 'Unable to cast object of type 'Material.Dialog.ViewModels.Elements.Header.Icons.DialogIconViewModel' to type 'Material.Dialog.ViewModels.DialogWindowViewModel'.' (ContentPresenter #PART_HeaderIcon)
Exception thrown: 'System.ArgumentOutOfRangeException' in Material.Avalonia.Dialogs.dll
[Binding]An error occurred binding 'Content' to 'DialogIcon' at 'DialogIcon': 'Specified argument was out of the range of valid values.' (ContentPresenter #PART_HeaderIcon)
Exception thrown: 'System.InvalidCastException' in Material.Avalonia.Dialogs.dll
[Binding]An error occurred binding 'IsVisible' to '!!DialogIcon' at 'DialogIcon': 'Unable to cast object of type 'Material.Dialog.ViewModels.Elements.Header.Icons.DialogIconViewModel' to type 'Material.Dialog.ViewModels.DialogWindowViewModel'.' (ContentPresenter #PART_HeaderIcon)

Regression?

Possibly related to #168

Known Workarounds

No response

Anything else?

No response

Could you help with a pull-request?

No

Is there an existing issue for this?

• I have searched the existing issues