{"id":136,"date":"2013-07-09T18:06:29","date_gmt":"2013-07-09T14:06:29","guid":{"rendered":"http:\/\/infobs.athn.ru\/?p=136"},"modified":"2013-07-09T18:06:29","modified_gmt":"2013-07-09T14:06:29","slug":"sravnenie-obektov-v-spiskah","status":"publish","type":"post","link":"https:\/\/infobase.athn.ru\/program\/2013\/07\/sravnenie-obektov-v-spiskah\/","title":{"rendered":"\u0421\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435 \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u0432 \u0432 \u0441\u043f\u0438\u0441\u043a\u0430\u0445"},"content":{"rendered":"<p>\u0417\u0430\u0434\u0430\u0447\u0430: \u0435\u0441\u0442\u044c \u0434\u0432\u0430 \u0441\u043f\u0438\u0441\u043a\u0430 \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u0432 \u043e\u0434\u043d\u043e\u0433\u043e \u0442\u0438\u043f\u0430. \u041e\u0431\u044a\u0435\u043a\u0442\u044b \u043c\u043e\u0433\u0443\u0442 \u043f\u043e\u0432\u0442\u043e\u0440\u044f\u0442\u044c\u0441\u044f. \u041d\u0443\u0436\u043d\u043e \u0432\u0437\u044f\u0442\u044c \u0438\u0437 \u0432\u0442\u043e\u0440\u043e\u0433\u043e \u0441\u043f\u0438\u0441\u043a\u0430 \u0442\u043e\u043b\u044c\u043a\u043e \u0442\u0435 \u043e\u0431\u044a\u0435\u043a\u0442\u044b, \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043d\u0435\u0442 \u0432 \u043f\u0435\u0440\u0432\u043e\u043c.<\/p>\n<pre>\nvar newArticles = allArticles.Except(oldArticles, new ArticleEqualityComparer());\n<\/pre>\n<p>ArticleEqualityComparer \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d \u043f\u043e \u043f\u0440\u0438\u043c\u0435\u0440\u0443 \u0441 MSDN:<br \/>\nhttp:\/\/msdn.microsoft.com\/ru-ru\/library\/ms132151.aspx<\/p>\n<pre>class BoxEqualityComparer : IEqualityComparer\n{\n\n    public bool Equals(Box b1, Box b2)\n    {\n        if (b1.Height == b2.Height &amp; b1.Length == b2.Length\n                            &amp; b1.Width == b2.Width)\n        {\n            return true;\n        }\n        else\n        {\n            return false;\n        }\n    }\n\n\n    public int GetHashCode(Box bx)\n    {\n        int hCode = bx.Height ^ bx.Length ^ bx.Width;\n        return hCode.GetHashCode();\n    }\n\n}<\/pre>\n<p><!--more--><br \/>\n\u0418 \u0435\u0449\u0435 \u043f\u0440\u0438\u043c\u0435\u0440 \u0434\u043b\u044f \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044f \u0441\u043f\u0438\u0441\u043a\u043e\u0432 \u0432 \u0441\u043f\u0438\u0441\u043a\u0430\u0445<br \/>\nhttp:\/\/social.msdn.microsoft.com\/Forums\/en-US\/2ff3016c-bd61-4fec-8f8c-7b6c070123fa\/c-compare-two-lists-of-objects<\/p>\n<pre>\npublic class ListComparer : IEqualityComparer&lt;List&gt;\n{\n    IEqualityComparer itemComparer;\n    public ListComparer()\n    {\n        itemComparer = EqualityComparer.Default;\n    }\n\n    public ListComparer(IEqualityComparer innerComparer)\n    {\n        itemComparer = innerComparer;\n    }\n\n    public bool Equals(List x, List y)\n    {\n        return x.SequenceEqual(y, itemComparer);\n    }\n\n    public int GetHashCode(List obj)\n    {\n        int somePrimeNumber = 37;\n\n        int result = 1;\n        foreach (T item in obj.Take(5))\n        {\n            result = (somePrimeNumber * result) + itemComparer.GetHashCode(item);\n        }\n\n        return result;\n    }\n}\n<\/pre>\n<p>\u0412\u044b\u0437\u043e\u0432:<\/p>\n<pre>List&lt;List&gt; first = new List&lt;List&gt;()\n{\n    new List{\"1\", \"2\"},\n    new List{\"a\", \"b\"}\n}; \n            \nList&lt;List&gt; second = new List&lt;List&gt;()\n{\n    new List{\"1\", \"2\"},\n    new List{\"a\", \"b\"}\n};\n\nbool areEqual = first.SequenceEqual(second, new ListComparer());<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u0417\u0430\u0434\u0430\u0447\u0430: \u0435\u0441\u0442\u044c \u0434\u0432\u0430 \u0441\u043f\u0438\u0441\u043a\u0430 \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u0432 \u043e\u0434\u043d\u043e\u0433\u043e \u0442\u0438\u043f\u0430. \u041e\u0431\u044a\u0435\u043a\u0442\u044b \u043c\u043e\u0433\u0443\u0442 \u043f\u043e\u0432\u0442\u043e\u0440\u044f\u0442\u044c\u0441\u044f. \u041d\u0443\u0436\u043d\u043e \u0432\u0437\u044f\u0442\u044c \u0438\u0437 \u0432\u0442\u043e\u0440\u043e\u0433\u043e \u0441\u043f\u0438\u0441\u043a\u0430 \u0442\u043e\u043b\u044c\u043a\u043e \u0442\u0435 \u043e\u0431\u044a\u0435\u043a\u0442\u044b, \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043d\u0435\u0442 \u0432 \u043f\u0435\u0440\u0432\u043e\u043c. var newArticles = allArticles.Except(oldArticles, new ArticleEqualityComparer()); ArticleEqualityComparer \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d <a class=\"more-link\" href=\"https:\/\/infobase.athn.ru\/program\/2013\/07\/sravnenie-obektov-v-spiskah\/\">Continue Reading \u2192<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[79,86],"class_list":["post-136","post","type-post","status-publish","format-standard","hentry","category-csharp","tag-except","tag-iequalitycomparer"],"_links":{"self":[{"href":"https:\/\/infobase.athn.ru\/program\/wp-json\/wp\/v2\/posts\/136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/infobase.athn.ru\/program\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/infobase.athn.ru\/program\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/infobase.athn.ru\/program\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/infobase.athn.ru\/program\/wp-json\/wp\/v2\/comments?post=136"}],"version-history":[{"count":0,"href":"https:\/\/infobase.athn.ru\/program\/wp-json\/wp\/v2\/posts\/136\/revisions"}],"wp:attachment":[{"href":"https:\/\/infobase.athn.ru\/program\/wp-json\/wp\/v2\/media?parent=136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/infobase.athn.ru\/program\/wp-json\/wp\/v2\/categories?post=136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/infobase.athn.ru\/program\/wp-json\/wp\/v2\/tags?post=136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}