ServiceInsight.Framework.UI.ScreenManager.Dialog.ShowDialog C# (CSharp) Method

        public new bool? ShowDialog()
        {
            bool? result;

            try
            {
                SetValue(IsModalProperty, true);
                result = base.ShowDialog();
            }
            finally
            {
                SetValue(IsModalProperty, false);
            }

            return result;
        }

        void ShowDialog(Window parent, MessageIcon icon, string title, string content, MessageChoice choices, string help, bool enableDontAsk, MessageChoice defaultChoice)
        {
            if (IsSet(choices, MessageChoice.Yes | MessageChoice.OK) || (choices == MessageChoice.Help))
            {
                throw new ArgumentException();
            }

            view = CreateWindow(parent);

            Icon               = icon;
            Title              = title;
            Content            = content;
            Choices            = new List <ICommand>();
            EnableDontAskAgain = enableDontAsk;
            Result             = MessageChoice.None;

            if (!string.IsNullOrEmpty(help))
            {
                HelpMessage = help;
            }

            if (IsSet(choices, MessageChoice.Yes))
            {
                Choices.Add(new ChoiceCommand(CloseCommand, defaultChoice == MessageChoice.Yes, false, "Yes", MessageChoice.Yes));
            }

            if (IsSet(choices, MessageChoice.No))
            {
                Choices.Add(new ChoiceCommand(CloseCommand, defaultChoice == MessageChoice.No, !IsSet(choices, MessageChoice.Cancel), "No", MessageChoice.No));
            }

            if (IsSet(choices, MessageChoice.OK))
            {
                Choices.Add(new ChoiceCommand(CloseCommand, choices == MessageChoice.OK || defaultChoice == MessageChoice.OK, !IsSet(choices, MessageChoice.Cancel), "OK", MessageChoice.OK));
            }

            if (IsSet(choices, MessageChoice.Cancel))
            {
                Choices.Add(new ChoiceCommand(CloseCommand, choices == MessageChoice.Cancel || defaultChoice == MessageChoice.Cancel, true, "Cancel", MessageChoice.Cancel));
            }

            if (IsSet(choices, MessageChoice.Help))
            {
                Choices.Add(new ChoiceCommand(HelpCommand, choices == MessageChoice.Help || defaultChoice == MessageChoice.Help, false, "Help", MessageChoice.Help));
            }

            view.ShowDialog();
        }