public IList<GroupingMetadata> GetGroupingMetadatas(string group_ids)
        {
            try
            {
                NameValueCollection nameValues = new NameValueCollection();
                nameValues.Add(ParameterNames.GroupIds, group_ids);

                var parameters = new GroupingTreeParameters(nameValues);
                return new JsonBuilderGroupingTree(parameters).GetGroupingMetadatas();
            }
            catch (Exception ex)
            {
                Log(ex);
                throw;
            }
        }
 public JsonBuilderGroupingTree(GroupingTreeParameters parameters)
 {
     _parameters = parameters;
     Parameters = _parameters;
 }
 public JsonBuilderGroupingTree(HttpContextBase context)
     : base(context)
 {
     _parameters = new GroupingTreeParameters(context.Request.Params);
     Parameters = _parameters;
 }