BusinessLogicLayer.Logic.GetByTag C# (CSharp) Method

        public IEnumerable<Post> GetByTag(string currentTag)
        {
            var data = _data.GetAllPosts();

            var result = from item in data
                         orderby item.CreatedTime descending
                         where item.Tags.Contains<string>(currentTag)
                         select item;

            return result;
        }