{"id":3610,"date":"2012-08-03T16:34:31","date_gmt":"2012-08-03T07:34:31","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/?p=3610"},"modified":"2012-08-04T01:33:07","modified_gmt":"2012-08-03T16:33:07","slug":"c-%e5%9e%8b%e6%8e%a8%e8%ab%96%e3%81%a8%e6%9a%97%e9%bb%99%e3%81%ae%e3%82%ad%e3%83%a3%e3%82%b9%e3%83%88%ef%bc%88implicit%ef%bc%89%e3%82%92%e7%b5%84%e3%81%bf%e5%90%88%e3%82%8f%e3%81%9b%e3%82%8b","status":"publish","type":"post","link":"http:\/\/www.moonmile.net\/blog\/archives\/3610","title":{"rendered":"[C#] \u578b\u63a8\u8ad6\u3068\u6697\u9ed9\u306e\u30ad\u30e3\u30b9\u30c8\uff08implicit\uff09\u3092\u7d44\u307f\u5408\u308f\u305b\u308b"},"content":{"rendered":"

Microsoft\u3001\u300cMetro\u30b9\u30bf\u30a4\u30eb\u300d\u6539\u79f0\u3078\u2015\u2015\u7c73\u30e1\u30c7\u30a3\u30a2\u5831\u9053 – ITmedia \u30cb\u30e5\u30fc\u30b9
\nhttp:\/\/www.itmedia.co.jp\/news\/articles\/1208\/03\/news053.html<\/a><\/p>\n

Metro Style \u3068\u3044\u3046\u7528\u8a9e\u304c\u6d88\u3048\u308b\u305d\u3046\u3060\u3051\u3069\u300c\u30e1\u30c8\u30ed\u30b9\u30bf\u30a4\u30eb\u300d\u306e\u53ef\u80fd\u6027\u304c\u4f4e\u304f\u306a\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u305d\u308c\u306f\u305d\u308c\u3067\u6b53\u8fce\u304b\u3068\u3002\u67d0\u30e1\u30c8\u30ed\u672c\u3092\u66f8\u304f\u524d\u306e\u6587\u7ae0\u7df4\u7fd2\u3068\u3057\u3066\u3001\u5c11\u3057\u66f8\u304d\u3064\u3051\u307e\u3059\u3002<\/p>\n

C# \u306e var \u306f\u3001\u578b\u63a8\u8ad6\u3068\u3044\u3046\u5f62\u3067 C# \u306e\u578b\u3092\u30b3\u30f3\u30d1\u30a4\u30e9\u304c\u5224\u5b9a\u3059\u308b\u3068\u3044\u3046\u6a5f\u80fd\u3067\u3001\u5ba3\u8a00\u90e8\u306e\u30b3\u30fc\u30c9\u304c\u77ed\u304f\u306a\u308b\u3068\u3044\u3046\u3053\u3068\u3068\u3001LINQ \u306e\u30af\u30a8\u30ea\u3092\u53d7\u3051\u308b\u3068\u304d\u306b\u5c0f\u96e3\u3057\u3044\u2026\u3068\u3044\u3046\u304b\u8a18\u8ff0\u4e0d\u53ef\u80fd\u306a\u66f8\u304d\u65b9\u3092\u3057\u306a\u304f\u3066\u3088\u3044\u306e\u304c\u5927\u304d\u306a\u5229\u70b9\u3067\u3059\u3002<\/p>\n

\r\nCPoint pt = new CPoint();\r\n<\/pre>\n
\u306e\u304b\u308f\u308a\u306b<\/p>\n
\r\nvar pt = new CPoint();\r\n<\/pre>\n
\u3068\u66f8\u304f\u308f\u3051\u3067\u3059\u3002\u3053\u308c\u3001VB \u3067\u66f8\u304f\u3068\u3001<\/p>\n
\r\nDim pt As New CPoint()\r\n<\/pre>\n
\u306a\u306e\u3067\u3001\u5ba3\u8a00\u90e8\u3060\u3051\u3060\u3068\u3042\u307e\u308a\u610f\u5473\u304c\u306a\u3044\u306e\u3067\u3059\u304c\u3001<\/p>\n
\r\nvar query = from t in Table where t.name = \u201cmasuda\u201d select t ;\r\n<\/pre>\n
\u306e\u3088\u3046\u306b LINQ \u306e\u30af\u30a8\u30ea\u3092\u53d7\u3051\u308b\u5834\u5408\u306f\u300c\u307b\u307c\u5fc5\u9808\u300d\u3067\u3059\u3088\u306d\u3002\u300c\u307b\u307c\u300d\u3063\u3066\u3044\u3046\u306e\u306f\u3001IEmutable \u304b IQuerable \u3092\u4f7f\u3048\u3070\u306a\u3093\u3068\u304b\u53ef\u80fd\u306a\u306e\u3067\u3059\u304c\u3001\u30a4\u30f3\u30c6\u30ea\u30bb\u30f3\u30b9\u306e\u52a9\u3051\u304c\u306a\u3044\u3068\u78ba\u5b9f\u306b\u7121\u7406\u30c3!!! \u7d20\u306e\u30c6\u30ad\u30b9\u30c8\u30a8\u30c7\u30a3\u30bf\u3092\u4f7f\u3046\u5834\u5408\u306f\u300cvar\u300d\u304c\u5fc5\u9808\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
C# \u306f C++ \u306e\u578b\u306e\u66f8\u304d\u65b9\u3092\u7d99\u627f\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u5ba3\u8a00\u3092\u3059\u308b\u3068\u304d\u306b\u3001\u3042\u305f\u304b\u3082\u578b\u30922\u3064\u66f8\u304b\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3068\u3044\u3046\u4e0d\u4fbf\u3055\u304c\u969b\u7acb\u3064\u306e\u3067\u3059\u304c\uff08VB \u3060\u30681\u56de\u3060\u3051\u3067\u3044\u3044\u3067\u3059\u3088\u306d\uff09\u3001\u3082\u3068\u3082\u3068 C++ \u306e\u5834\u5408\u306f\u3001<\/p>\n
\r\nCPoint pt ;\r\n\r\nCPoint *pt = new CPoint();\r\n<\/pre>\n
\u3068\u3044\u3063\u305f\u7570\u306a\u308b\u66f8\u304d\u65b9\u3092\u3059\u308b\u306e\u3067\u3001\u5fc5\u305a\u3057\u3082\u578b\u304c\u91cd\u8907\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u8a33\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5148\u306e\u307b\u3046\u306f\u5185\u90e8\u5909\u6570\u3067\u30b9\u30b3\u30fc\u30d7\u3092\u629c\u3051\u308b\u6642\u306b\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u547c\u3070\u308c\u308b\uff08\u81ea\u52d5\u7684\u306b\u89e3\u653e\u3055\u308c\u308b\uff09\u306e\u3067\u3001\u666e\u901a\u306f\u4e0a\u8a18\u306e\u66f8\u304d\u65b9\u3092\u591a\u7528\u3057\u307e\u3059\u3002C# \u306e\u5834\u5408\u306f\u3001using \u3092\u4f7f\u3063\u3066<\/p>\n
\r\nusing ( CPoint pt = new CPoint() ) { \u2026 }\r\n<\/pre>\n
\u306e\u3088\u3046\u306b\u30b9\u30b3\u30fc\u30d7\u3092\u6c7a\u3081\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u306e\u3067\u3059\u304c\u3001\u306a\u3093\u304b\u3044\u307e\u3044\u3061\u3067\u3059\u3002\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u7d4c\u6e08\u6027\u304b\u3089\u3044\u3048\u3070\u30bf\u30a4\u30d4\u30f3\u30b0\u306e\u5c11\u306a\u3044\u65b9\u306b\u6d41\u308c\u304c\u3061\u306a\u306e\u3067\u3001\u79c1\u306e\u5834\u5408\u306f using \u306f\u3042\u307e\u308a\u4f7f\u3063\u3066\u3044\u307e\u305b\u3093\u3002\u660e\u793a\u7684\u306b\u753b\u50cf\u95a2\u4fc2\uff08Bitmap\u306a\u3069\uff09\u3092\u6271\u3046\u6642\u3050\u3089\u3044\u3067\u3059\u3002<\/p>\n
\u25a0\u6697\u9ed9\u306e\u30ad\u30e3\u30b9\u30c8\uff08implicit\uff09<\/p>\n
\u578b\u63a8\u8ad6\u3068\u53cd\u5bfe\u306e\u767a\u60f3\uff08\u3068\u79c1\u306f\u601d\u3063\u3066\u3044\u308b\uff09\u3082\u306e\u306b\u3001\u6697\u9ed9\u306e\u30ad\u30e3\u30b9\u30c8\u304c\u3042\u308a\u307e\u3059\u3002\u578b\u63a8\u8ad6\u306f\u3001\u30b3\u30f3\u30d1\u30a4\u30e9\u304c\u69cb\u6587\uff08\u95a2\u6570\u306e\u623b\u308a\u5024\u3084\u5225\u306e\u578b\uff09\u304b\u3089\u4e00\u610f\u306e\u578b\u3092\u6c7a\u3081\u307e\u3059\u304c\u3001\u30ad\u30e3\u30b9\u30c8\u306f\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u3044\u308b\u4eba\uff1d\u30d7\u30ed\u30b0\u30e9\u30de\u304c\u578b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u4f59\u8ac7\u3067\u3059\u304c\u3001F# \u306e\u5834\u5408\u306f\u578b\u3092\u63a8\u8ad6\u3059\u308b\u3068\u540c\u6642\u306b\u3001\u2019a \u3068\u3044\u3046 anonymous \u306a\u578b\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\/generic \u306e T \u3068\u540c\u3058\u3088\u3046\u306b\u50cd\u304f\u306e\u3067\u3059\u304c\u3001\u8868\u9762\u4e0a\u306f\u578b\u304c\u305d\u306e\u5834\u6240\u3067\u898f\u5b9a\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3001\u547c\u3073\u51fa\u3057\u5074\u3067\u65e2\u5b9a\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3092\u533a\u5225\u3057\u307e\u305b\u3093\u3002C++ \u3084 C# \u306e\u5834\u5408\u306f CPoint() \u306e\u3088\u3046\u306b\u300c<>\u300d\u3092\u4f7f\u3063\u3066\u300c\u4e0d\u5b9a\u306e\u578b\u300d\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u3068\u3053\u308d\u304c\u5927\u304d\u306a\u9055\u3044\u3068\u611f\u3058\u3066\u3044\u307e\u3059\u3002\u3061\u306a\u307f\u306b\u3001VB \u306e\u5834\u5408\u306f\u300cCPoint(Of Integer)()\u300d\u3068\u306a\u3063\u3066\u5b9f\u306b\u5947\u5999\u306a\u611f\u3058\u306a\u306e\u3067\u3059\u3002<\/p>\n
LINQ \u3084 XML \u3092\u6271\u3063\u3066\u3044\u308b\u3068\u3001\u30c4\u30ea\u30fc\u69cb\u9020\u306a\u308a\u30c6\u30fc\u30d6\u30eb\u69cb\u9020\u304c\u5358\u6570\u3068\u8907\u6570\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u3063\u3066\u304d\u307e\u3059\u3002LINQ \u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u30b3\u30fc\u30c9\u306e\u4e2d\u304b\u3089 for\/while \u6587\u3092\u6392\u9664\u3057\u3066\u3044\u304f\u6545\u306b\u8907\u6570\u884c\u306e\u30b3\u30fc\u30c9\u304c\u30ef\u30f3\u30e9\u30a4\u30ca\u30fc\u3067\u8a18\u8ff0\u3067\u304d\u308b\uff08\u6570\u5f0f\u306b\u8fd1\u304f\u306a\u308b\uff09\u3068\u3044\u3046\u5229\u70b9\u304c\u3042\u308b\u306e\u3067\u3059\u304c\u3001\u5358\u6570\u3068\u8907\u6570\u306e\u8981\u7d20\u3092\u6697\u9ed9\u306e\u30ad\u30e3\u30b9\u30c8\u3092\u4f7f\u3063\u3066\u4f7f\u3044\u5206\u3051\u308b\u3068\u3001.FirstOrDefault \u3084 [0] \u3068\u304b != null \u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u4e00\u4f8b\u3092\u793a\u3059\u3068 HtmlDom \u3067\u306f\u3001HTML \u30bf\u30b0\u306b\u95a2\u3057\u3066\u3001HtmlElement \u3068\u3044\u3046\u5358\u6570\u306e\u8981\u7d20\u3068\u3001HtmlElementCollection \u3068\u3044\u3046\u8907\u6570\u306e\u8981\u7d20\u2252\u30ea\u30b9\u30c8\u3092\u7528\u610f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\r\nclass HtmlElementCollection : List<HtmlElement> { \u2026 }\r\n<\/pre>\n
\u30c4\u30ea\u30fc\u69cb\u9020\u306a\u306e\u3067\u3001HtmlElement \u306f\u3001\u5b50\u8981\u7d20\u3068\u3057\u3066 HtmlElementCollection Children \u3068\u3044\u3046\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3055\u3066\u3001\u3068\u3042\u308b\u8981\u7d20\u306b div \u3068\u3044\u3046\u5b50\u8981\u7d20\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u8abf\u3079\u308b\u306e\u306b\u306f\u3001LINQ \u3092\u4f7f\u3046\u3068\u6b21\u306e\u3088\u3046\u306b\u66f8\u3051\u308b\u3088\u3046\u306b\u4f5c\u308a\u307e\u3059\u3002<\/p>\n
# @neuecc \u3055\u3093\u3088\u308a
\n# LINQ to random thoughts – NyaRuRu\u306e\u65e5\u8a18
\n# http:\/\/d.hatena.ne.jp\/NyaRuRu\/20080205\/p1
\n<\/a># Any \u3092\u4f7f\u3048\u3068\u3044\u3046\u6307\u6458\u304c\u3002\u305d\u308a\u3083\u305d\u3046\u3060\u3002 Count \u3059\u308b\u3068\u5168\u4ef6\u691c\u7d22\u3057\u3066\u3057\u307e\u3046\u304c\u306a orz 
\n<\/a><\/p>\n
\r\nif ( root.Children.Any( n => n.TagName == \u201cdiv\u201d ) ) {\r\n<\/pre>\n
\u8981\u7d20\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092 Any\u30e1\u30bd\u30c3\u30c9\u3067\u8abf\u3079\u308b\u306e\u3067\u3059\u304c\u3001\u5927\u62b5\u306e\u5834\u5408\u306f\u300c\u5b50\u8981\u7d20\u304c\u3042\u308c\u3070\u6700\u521d\u306e\u8981\u7d20\u304c\u307b\u3057\u3044\u300d\u3068\u3044\u3046\u306e\u304c\u666e\u901a\u3067\u3059\u3002\u305d\u3046\u306a\u308b\u3068\u3001.First \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u3001<\/p>\n
\r\nvar el = root.Children.First( n => n.TagName == \u201cdiv\u201d );\r\n<\/pre>\n
\u3063\u3066\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3059\u304c\u3001\u5b50\u8981\u7d20\u304c\u306a\u3044\u5834\u5408\u306f\u3001el \u306e\u5024\u306f null \u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u3046\u306a\u308b\u3068 != null \u304c\u5fc5\u8981\u306b\u306a\u3063\u3066\u3061\u3087\u3063\u3068\u9762\u5012\u3067\u3059\u3002\u306a\u306e\u3067\u3001.FirstOrDefault \u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u6b21\u306e\u3088\u3046\u306b\u66f8\u304d\u63db\u3048\u307e\u3059\u3002<\/p>\n
\r\nvar el = root.Children.FirstOrDefault( n => n.TagName == \u201cdiv\u201d );\r\n<\/pre>\n
\u3055\u3066\u3001\u3053\u3053\u3067 div \u306f\u6700\u521d\u306e\u3072\u3068\u3064\u3060\u3051\u3068\u3044\u3046\u3053\u3068\u306b\u3057\u3066\u307e\u3057\u305f\u304c\u3001\u6700\u5f8c\u306e\u3072\u3068\u3064\u3092\u53d6\u308a\u305f\u3044\u6642\u306f\u3069\u3046\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f \u3046\u307e\u3044\u5177\u5408\u306b Last \u30e1\u30bd\u30c3\u30c9\u3084 LastOrDefault \u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308b\u306e\u3067\u3053\u308c\u3092\u6d3b\u7528\u3057\u307e\u3059\u2026\u3063\u3066\u3053\u3068\u306b\u30d8\u30eb\u30d7\u7684\u306b\u306f\u306a\u308b\u306e\u3067\u3059\u304c\u3001\u3053\u3046\u3084\u3063\u3066\u3044\u304f\u3068\u7d44\u307f\u5408\u308f\u305b\u7684\u306b\u30e1\u30bd\u30c3\u30c9\u6570\u304c\u5897\u3048\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n
\u306a\u3089\u3070\u3001<\/p>\n
\r\nvar el = root.Children.Where( n => n.TagName == \u201cdiv\u201d ).First() ;\r\n<\/pre>\n
\u306e\u3088\u3046\u306b\u3069\u3046\u305b LINQ \u306f\u9045\u5ef6\u8a55\u4fa1\u306a\u306e\u3060\u304b\u3089\u3001Where \u3067\u691c\u7d22\u3057\u305f\u5f8c\u306b First \u3060\u3051\u3092\u6301\u3063\u3066\u304f\u308b\u306e\u304c\u7d20\u76f4\u3067\u306f\uff1f\u3068\u601d\u3063\u3066\u3057\u307e\u3046\u308f\u3051\u3067\u3059\u3002\u307e\u3042\u3001\u5b9f\u969b\u306b\u3053\u3046\u3044\u3046\u66f8\u304d\u65b9\u3082\u3067\u304d\u308b\u308f\u3051\u3067\u3002\u305d\u3053\u3067\u3001\u6697\u9ed9\u306e\u30ad\u30e3\u30b9\u30c8\u3092\u4f7f\u3063\u3066\u3001First \u81ea\u4f53\u3082\u6d88\u3057\u3066\u3057\u307e\u304a\u3046\u3068\u3044\u3046\u306e\u304c\u3001HtmlDom \u306e\u767a\u60f3\uff08\u5143\u30cd\u30bf\u306f ExDoc\uff09\u3067\u3059\u3002<\/p>\n
\r\nHtmlElement el = root.Children.Where( n => n.TagName == \u201cdiv\u201d ); \/\/ \u6700\u521d\u306e\u8981\u7d20\u3092\u53d6\u5f97\r\n\r\nHtmlElementCollection els = root.Children.Where( n => n.TagName == \u201cdiv\u201d ); \/\/ \u8907\u6570\u306e\u8981\u7d20\u3092\u53d6\u5f97\r\n<\/pre>\n
\u306e\u3088\u3046\u306b\u3001\u3042\u3048\u3066\u300c\u578b\u300d\u3092\u8a18\u8ff0\u3055\u305b\u3066\u300c\u6700\u521d\u306e\u8981\u7d20\uff08\u5358\u6570\u306e\u8981\u7d20\uff09\u300d\u306a\u306e\u304b\u300c\u30ea\u30b9\u30c8\uff08\u8907\u6570\u306e\u8981\u7d20\uff09\u300d\u306a\u306e\u304b\u3092\u30d7\u30ed\u30b0\u30e9\u30de\u304c\u6c7a\u3081\u307e\u3059\u3002Where \u30e1\u30bd\u30c3\u30c9\u81ea\u4f53\u306f\u30ea\u30b9\u30c8\u3092\u8fd4\u3059\u306e\u3067\u3059\u304c\u3001HtmlElementCollection \u304b\u3089 HtmlElement \u3078\u306e\u81ea\u52d5\u7684\u306a\u30ad\u30e3\u30b9\u30c8\u3092\u8a31\u3059\u3053\u3068\u3067\u3001\u3053\u3093\u306a\u66f8\u304d\u65b9\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\r\npublic class HtmlElementCollection :  List<HtmlElement>\r\n{\r\n    public static implicit operator HtmlElement(HtmlElementCollection col)\r\n    {\r\n        if (col.Count > 0)\r\n        {\r\n            return col[0];\r\n        }\r\n        else\r\n        {\r\n            return HtmlElement.EmptyElement;\r\n        }\r\n    }\r\n<\/pre>\n
\u9045\u5ef6\u5b9f\u884c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u4e0a\u8a18\u306e\u5f62\u3067\u7c21\u5358\u306b\u6697\u9ed9\u306e\u30ad\u30e3\u30b9\u30c8\u304c\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002HtmlElementCollection \u304b\u3089 HtmlElement \u306b\u30ad\u30e3\u30b9\u30c8\u3057\u305f\u6642\u306b\u3001\u8981\u7d20\u304c\u3042\u308c\u3070\u5148\u982d\u306e\u8981\u7d20\u3092\u3001\u8981\u7d20\u304c\u306a\u3051\u308c\u3070 EmptyElement \u3068\u3044\u3046\u7a7a\u306e\u8981\u7d20\u3092\u8fd4\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001.FirstOrDefault \u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u3068\u540c\u3058\u52d5\u4f5c\u3092\u3057\u307e\u3059\u3002\u7a7a\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u306f\u3001null \u3068\u6bd4\u8f03\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001IsEmpty \u3068\u3044\u3046\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3046\u308f\u3051\u3067\u3059\u3002<\/p>\n
\u3053\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u5148\u306e el \u3068\u3044\u3046\u5909\u6570\u306f null \u306b\u306a\u308a\u307e\u305b\u3093\u3002null \u306b\u306f\u306a\u3089\u306a\u3044\u306e\u3067\u3001el.IsEmpty \u3084\u3001el.Children.Where \u3068\u3044\u3046\u66f8\u304d\u65b9\u3092\u7d9a\u3051\u3066\u3067\u304d\u307e\u3059\u3002Where \u30e1\u30bd\u30c3\u30c9\u3092\u76f4\u5217\u306b\u3059\u308b\u66f8\u304d\u65b9\u306f\u3001LINQ \u3067\u3082\u540c\u3058\u3067\u5e38\u306b IEmutable \u3068\u3044\u3046\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3082\u3069\u304d\uff08\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306b\u898b\u3048\u308b\u304c\u3001\u9045\u5ef6\u5b9f\u884c\u3055\u308c\u308b\u306e\u3067\u3001\u5185\u90e8\u7684\u306b\u306f\u5b9f\u884c\u30e1\u30bd\u30c3\u30c9\u306e\u9806\u5e8f\u3060\u3051\u3092\u4fdd\u6301\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u70b9\u3067\u300c\u3082\u3069\u304d\u300d\uff09\u3092\u4f7f\u3046\u3053\u3068\u3067\u5b9f\u73fe\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3082\u3046\u5c11\u3057\u6587\u6cd5\u7684\u306b\u716e\u8a70\u3081\u305f\u3089 HtmlDom \u3082\u305d\u3046\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n
\u25a0\u8981\u7d20\u3092\u63a2\u3059\u3068\u3044\u3046\u30b3\u30fc\u30c9\u304c\u5927\u534a\u3067\u3042\u308b\u3068\u3044\u3046\u73fe\u5b9f<\/p>\n
XML \u3084 HTML \u3092\u6271\u3046\u5834\u5408\u306b\u306f\u300c\u6307\u5b9a\u3057\u305f id \u3092\u6301\u3064\u8981\u7d20\u3092\u63a2\u3059\u300d\u3068\u3044\u3046\u30b3\u30fc\u30c9\u304c\u983b\u7e41\u306b\u767a\u751f\u3057\u307e\u3059\u3002ElementById \u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u3067\u3001\u8981\u7d20\u3092\u63a2\u3057\u3066\u5024\u3092\u53d6\u5f97\u3057\u305f\u308a\u8a2d\u5b9a\u3057\u305f\u308a\u3057\u307e\u3059\u3002for\/while \u306e\u5834\u5408\u306f\u30012\u3064\u306e\u52d5\u4f5c\u304c\u3042\u3063\u3066\u300c\u8981\u7d20\u306b\u5bfe\u3057\u3066\u540c\u3058\u64cd\u4f5c\u3092\u7e70\u308a\u8fd4\u3059\u300d\u3068\u3044\u3046\u306e\u3068\u300c\u8981\u7d20\u3092\u63a2\u3057\u51fa\u3057\u3066\u3001\u4f55\u304b\u64cd\u4f5c\u3057\u3066\u7d42\u308f\u308b\u300d\u3068\u3044\u3046\u306e\u304c\u983b\u7e41\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n
\u30b5\u30f3\u30d7\u30eb\u3092\u66f8\u3044\u3066\u8003\u3048\u3066\u307f\u308b\u3068\u3001<\/p>\n
\u25a1\u8907\u6570\u306e\u8981\u7d20\u3092\u4e00\u6c17\u306b\u66f4\u65b0<\/p>\n
\r\nforeach ( var el in root.Children ) {\r\n  if ( el.TagName == &quot;div&quot; ) {\r\n    el.Value = &quot;xxx&quot;;\r\n  }\r\n}\r\n\r\nvar q = root.Children.Where( n => n.TagName == &quot;div&quot; );\r\n\/\/ LINQ \u306e\u5834\u5408\u3001\u9023\u7d9a\u3057\u3066\u66f4\u65b0\u3063\u3066\u3069\u3046\u3084\u308b\u3093\u3060\u3063\u3051\uff1f\r\nforeach ( var el in q ) {\r\n  el.Value = &quot;xxx&quot;;\r\n}\r\n\r\n\/\/ HtmlDom \u306e\u5834\u5408\r\nroot.Children.Where( n => n.TagName == &quot;div&quot; ).Value = \u201cxxx\u201d;\r\n<\/pre>\n
\u25a1\u3072\u3068\u3064\u306e\u8981\u7d20\u3092\u898b\u3064\u3051\u3066\u66f4\u65b0<\/p>\n
\r\nforeach ( var el in root.Children ) {\r\n  if ( el.Attribute(&quot;id&quot;) == &quot;m1&quot; ) {\r\n    el.Value = &quot;xxx&quot;;\r\n    break;\r\n  }\r\n}\r\n\r\n\/\/ LINQ \u306e\u5834\u5408\r\nroot.Children.Where( n => n.Attribute(&quot;id&quot;) == &quot;m1&quot; ).First().Value = &quot;xxx&quot;;\r\n\r\n\/\/ HtmlDom \u306e\u5834\u5408\r\nroot.Children.Where( n => n.Attribute(&quot;id&quot;) == &quot;m1&quot; ).Value = &quot;xxx&quot;;\r\n<\/pre>\n
\u4e0a\u8a18\u306e\u3088\u3046\u306b HtmlDom \u3067\u306f\u4f7f\u3063\u3066\u5358\u6570\/\u8907\u6570\u3092\u540c\u3058\u3088\u3046\u306b\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u2026\u3068\u4e91\u3044\u307e\u3059\u304b\u3001LINQ \u69cb\u6587\u5185\u3067\u306f\u3001HtmlElementCollection \u3068\u3057\u3066\u6271\u3044\u3001\u540c\u3058\u3053\u3068\u304c HtmlElement \u306b\u3082\u9069\u7528\u3067\u304d\u308b\u3001\u3068\u3044\u3046\u300c\u898b\u304b\u3051\u4e0a\u300d\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3057\u3066\u3044\u307e\u3059\u3002\u5358\u6570\u306e\u307b\u3046\u306f\u3001\u6b63\u78ba\u306b\u66f8\u304f\u3068 HtmlElement \u306b\u30ad\u30e3\u30b9\u30c8\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3001<\/p>\n
\r\n((HtmlElement)root.Children.Where( n => n.Attribute(&quot;id&quot;) == &quot;m1&quot; )).Value = &quot;xxx&quot;;\r\n<\/pre>\n
\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3059\u304c\u3001\u52d5\u4f5c\u3068\u3057\u3066\u306f\u300cid=\u201dm1\u201d\u300d\u3067\u3042\u308b\u8981\u7d20\u306f\u3001\u300c\u5168\u4f53\u306e1\u3064\u3057\u304b\u306a\u3044\u300d\u3068\u3044\u3046\u300c\u4ed5\u69d8\u300d\u3092\u524d\u63d0\u306b\u3057\u3066\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u3059\u308b\u306e\u3067\u3001\u8907\u6570\u3042\u308b\u3068\u304d\u306f\u30a4\u30ea\u30fc\u30ac\u30eb\u306a\u8a33\u3067\u7121\u99c4\u306a\u306e\u3067\u3059\u3002\u9006\u306b\u3001\u30c7\u30fc\u30bf\u306e\u4e2d\u306b\u3072\u3068\u3064\u3082\u306a\u3044\u3068\u3044\u3046\u306e\u3082\u30a4\u30ea\u30fc\u30ac\u30eb\u306a\u308f\u3051\u3067\u3001\u3053\u308c\u3089\u306e\u51e6\u7406\u306f\u6b63\u78ba\u306b\u306f\u300c\u4f8b\u5916\u300d\u3068\u3057\u3066\u51e6\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u3059\u304c\u3001\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3068\u3057\u3066\u306f\u9762\u5012\u3060\u3057\u300c\u5fd8\u308c\u300d\u305d\u3046\u3067\u3059\u3088\u306d\u3002\u305d\u3046\u305d\u3046\u3001\u3053\u306e\u300c\u5fd8\u308c\u308b\/\u6f0f\u308c\u308b\u300d\u3068\u3044\u3046\u30d2\u30e5\u30fc\u30de\u30f3\u30a8\u30e9\u30fc\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306b\u3082\u3001\u5358\u6570\/\u8907\u6570\/null \u3092\u4e00\u62ec\u3057\u3066\u6271\u3046 implicit \u306a\u8a33\u3067\u3059\u3002\u5b89\u5168\u5074\u306b\u5012\u308c\u308b\u3068\u3044\u3046\u5b89\u5168\u7ba1\u7406\u306e\u624b\u6cd5\u3067\u3059\u3002\u30c7\u30fc\u30bf\u304c\u591a\u5c11\u30a4\u30ea\u30fc\u30ac\u30eb\u3067\u3082\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u843d\u3061\u305a\u306b\u306a\u3093\u3068\u306a\u304f\u6b63\u5e38\u306b\u52d5\u304f\u3068\u3044\u3046\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p>\n
\u305d\u3093\u306a\u8a33\u3067\u3001LINQ \u306e\u6587\u6cd5\u3067\u3042\u308b from\/where\/select \u3092\u6d3b\u7528\u3057\u3066\u3001\u540c\u6642\u306b\u6697\u9ed9\u306e\u30ad\u30e3\u30b9\u30c8\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u308b HtmlDom \u3067\u3059\u304c\u3001\u516c\u958b\u306f\u3082\u3046\u3061\u3087\u3063\u3068\u5148\u304b\u306a\u3041\u3068\u3002\u9045\u5ef6\u5b9f\u884c\u306e\u5b9f\u88c5\u304c\u3088\u304f\u308f\u304b\u3089\u3044\u306e\u304c\u672c\u97f3\u3067\u3001\u3082\u3046\u3061\u3087\u3063\u3068 LINQ \u306e\u5b9f\u88c5\u3092\u306a\u304c\u3081\u306a\u304f\u3066\u306f\u3002<\/p>\n
\n
neuecc<\/h1>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
Microsoft\u3001\u300cMetro\u30b9\u30bf\u30a4\u30eb\u300d\u6539\u79f0\u3078\u2015\u2015\u7c73\u30e1\u30c7\u30a3\u30a2\u5831\u9053 – ITmedia \u30cb\u30e5\u30fc\u30b9 http:\/\/www.itmedia.co.jp\/news\/articles\/1208\/03\/news053. … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-3610","post","type-post","status-publish","format-standard","hentry","category-csharp"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/3610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/comments?post=3610"}],"version-history":[{"count":3,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/3610\/revisions"}],"predecessor-version":[{"id":3612,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/3610\/revisions\/3612"}],"wp:attachment":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=3610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=3610"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=3610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}