public BindingPathConfiguration <TTargetType> HasManyPath <TTargetType>(
            Expression <Func <TStructuralType, IEnumerable <TTargetType> > > pathExpression,
            bool contained)
            where TTargetType : class
        {
            if (pathExpression == null)
            {
                throw Error.ArgumentNull("pathExpression");
            }

            PropertyInfo pathProperty = PropertySelectorVisitor.GetSelectedProperty(pathExpression);

            IList <MemberInfo> bindingPath = new List <MemberInfo>(_bindingPath);

            bindingPath.Add(pathProperty);

            StructuralTypeConfiguration <TTargetType> target;

            if (contained)
            {
                target = _modelBuilder.EntityType <TTargetType>();
                _structuralType.ContainsMany(pathExpression); // add a containment navigation property
            }
            else
            {
                target = _modelBuilder.ComplexType <TTargetType>();
                _structuralType.CollectionProperty(pathExpression); // add a collection complex property
            }

            return(new BindingPathConfiguration <TTargetType>(_modelBuilder, target, _navigationSource, bindingPath));
        }