{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.jhashimoto.net%2Fentry%2F20120402%2F1333355627\" title=\"IEnumerable.GroupBy\u30e1\u30bd\u30c3\u30c9 - Architect&#39;s Log\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://blog.jhashimoto.net/","image_url":"http://capture.heartrails.com/150x130/shadow?http://msdn.microsoft.com/ja-jp/library/bb534501.aspx","width":"100%","type":"rich","description":"Enumerable.GroupBy(TSource, TKey) \u30e1\u30bd\u30c3\u30c9 (IEnumerable(TSource), Func(TSource, TKey)) (System.Linq)\u6307\u5b9a\u3055\u308c\u305f\u30ad\u30fc \u30bb\u30ec\u30af\u30bf\u30fc\u95a2\u6570\u306b\u5f93\u3063\u3066\u30b7\u30fc\u30b1\u30f3\u30b9\u306e\u8981\u7d20\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3057\u307e\u3059\u3002 SQL\u3067\u306f\u3001GROUP BY\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002 \u30bd\u30fc\u30b9\u30b3\u30fc\u30c9 using System; using System.Collections.Generic; using System.Linq; namespace LinqSample { class Program { static void Main(string[] args)\u2026","provider_url":"https://hatena.blog","url":"https://blog.jhashimoto.net/entry/20120402/1333355627","provider_name":"Hatena Blog","version":"1.0","height":"190","categories":[".NET","C#","LINQ"],"published":"2012-04-02 17:33:47","author_url":"https://blog.hatena.ne.jp/JHashimoto/","title":"IEnumerable.GroupBy\u30e1\u30bd\u30c3\u30c9","author_name":"JHashimoto","blog_title":"Architect's Log"}