nl.siegmann.epublib.domain.Resources.containsId C# (CSharp) Method

        public bool containsId(string id)
        {
            if (StringUtil.isBlank(id))
            {
                return false;
            }
            foreach (Resource resource in resources.Values)
            {
                if (id.Equals(resource.getId()))
                {
                    return true;
                }
            }
            return false;
        }