MBEditor.AddParameterMenu C# (CSharp) Method

    void AddParameterMenu()
    {
        List<GUIContent> ParamMenu = new List<GUIContent>();
        Dictionary<string, System.Type> ParamTypes = new Dictionary<string, System.Type>();

        // Get a list of classes that derive from MBParameter
        Assembly asm = Assembly.GetAssembly(typeof(MBParameter));
        System.Type[] types = asm.GetTypes();
        foreach (System.Type T in types) {
            if (T.IsSubclassOf(typeof(MBParameter))) {
                // Get MBParameterInfo-Attribute
                System.Attribute info = System.Attribute.GetCustomAttribute(T, typeof(MBParameterInfo));
                if (info != null) {
                    // Add Menu entry
                    ParamMenu.Add(new GUIContent(((MBParameterInfo)info).Menu));
                    // Link Menu entry to class (for OnAddParameterMenu)
                    ParamTypes.Add(((MBParameterInfo)info).Menu, T);
                }
            }
        }
        EditorUtility.DisplayCustomMenu(new Rect(Event.current.mousePosition.x, Event.current.mousePosition.y, 100, 100),
                                        ParamMenu.ToArray(), -1, OnAddParameterMenu,ParamTypes);
    }