BudgetAnalyser.Engine.Widgets.ReflectionWidgetRepository.Create C# (CSharp) Метод

        public IUserDefinedWidget Create(string widgetType, string id)
        {
            var type = Type.GetType(widgetType);
            if (type == null)
            {
                throw new NotSupportedException("The widget type specified " + widgetType +
                                                " is not found in any known type library.");
            }

            if (!typeof(IUserDefinedWidget).IsAssignableFrom(type))
            {
                throw new NotSupportedException("The widget type specified " + widgetType +
                                                " is not a IUserDefinedWidget");
            }

            var widget = Activator.CreateInstance(type) as IUserDefinedWidget;
            Debug.Assert(widget != null);
            widget.Id = id;
            var key = BuildMultiUseWidgetKey(widget);

            if (this.cachedWidgets.ContainsKey(key))
            {
                throw new ArgumentException("A widget with this key already exists.", nameof(id));
            }

            var baseWidget = (Widget) widget;
            this.cachedWidgets.Add(key, baseWidget);
            return widget;
        }