MessageBox display is incomplete when there are multiple lines of text of the same length.

[YIWUYUFF]

MessageBox display is incomplete when there are multiple lines of text of the same length.

Adding a character to the last line displays the full

[YIWUYUFF]

Code:
MessageBoxManager.GetMessageBoxStandard(new MessageBoxStandardParams { ContentTitle = L10N.Localized("_Warning"), ContentMessage = $"The SetPoint of Channel[0] outof limit.\r\nThe SetPoint of Channel[1] outof limit.\r\nThe SetPoint of Channel[2] outof limit.\r\n", ButtonDefinitions = ButtonEnum.Ok, Icon = Icon.Warning, FontFamily = FontFamily.DefaultFontFamilyName, WindowStartupLocation = WindowStartupLocation.CenterScreen, MaxWidth = 600, MaxHeight = 800 }).ShowAsPopupAsync(OwnWnd);

[Ruikoto]

Same bug

[drei97]

probably same issue here

    private void MainWindow_DataContextChanged(object? sender, EventArgs e)
    {
        if (DataContext is null) return;
        vm = DataContext as MainWindowViewModel;
        vm!.Interactions.ShowMsgBoxInteraction.RegisterHandler(MsgBoxHandler);
    }

    private async Task MsgBoxHandler(IInteractionContext<MsgBoxOptions, ButtonResult> interactionContext)
    {
        interactionContext.SetOutput(await MessageBoxManager.GetMessageBoxStandard(interactionContext.Input.Title,
            interactionContext.Input.Msg, interactionContext.Input.Buttons, interactionContext.Input.Icon).ShowAsync());
    }

            await interactions.ShowMsgBoxInteraction.Handle(new MsgBoxOptions()
            {
                Title = "Hinweis",
                Msg = "Kein Element ausgewählt",
                Buttons = ButtonEnum.Ok,
                Icon = Icon.Info
            });

adding a NewLine to the message

                Msg = "Kein Element ausgewählt"+Environment.NewLine,

and it is working

Avalonia 11.3.11
MessageBox.Avalonia 3.3.1.1

[Ruikoto]

@drei97
Adding a newline can work around this bug in most cases, but if your text consists of multiple consecutive lines of the same "Kein Element ausgewählt," each line will be truncated into two lines, and adding a newline will not solve the problem.

[afinello]

I have a similar issue after upgrading Avalonia to 11.3.11 and MessageBox.Avalonia to 3.3.1. All my message boxes are now cropped, regardless of the newline characters presence. I create the messagebox like this:

var msgbox = MessageBoxManager.GetMessageBoxStandard(
        new MessageBoxStandardParams
        {
            ButtonDefinitions = ButtonEnum.Ok,
            ContentTitle = "Error",
            ContentMessage = message,
            Icon = MsBox.Avalonia.Enums.Icon.Error,
            WindowStartupLocation = WindowStartupLocation.CenterOwner,
            CanResize = false,
            MaxWidth = 480,
            MaxHeight = 320,
            SizeToContent = SizeToContent.WidthAndHeight,
            ShowInCenter = true,
            Topmost = true,
        }
    );

If I add MinWidth and MinHeight it respects them, but the message text length is not taken into account in any way, so the size is always MinWidth x MinHeight.