{"id":134022,"date":"2024-03-26T06:05:58","date_gmt":"2024-03-25T21:05:58","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/cattributeusage%e3%81%ae%e5%9f%ba%e7%a4%8e\/"},"modified":"2024-03-27T19:17:01","modified_gmt":"2024-03-27T10:17:01","slug":"cattributeusage%e3%81%ae%e5%9f%ba%e7%a4%8e","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/cattributeusage%e3%81%ae%e5%9f%ba%e7%a4%8e\/","title":{"rendered":"C#AttributeUsage\u306e\u57fa\u790e"},"content":{"rendered":"<p>AttributeUsage \u30af\u30e9\u30b9\u306f\u3001\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u306e\u4f7f\u7528\u898f\u5247\u3092\u6307\u5b9a\u3059\u308b\u305f\u3081\u306e\u7279\u6027\u30af\u30e9\u30b9\u3067\u3059\u3002AttributeUsage \u7279\u6027\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u3092\u30af\u30e9\u30b9\u3084\u30e1\u30bd\u30c3\u30c9\u3001\u30d5\u30a3\u30fc\u30eb\u30c9\u306a\u3069\u306e\u7279\u5b9a\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u8981\u7d20\u306b\u306e\u307f\u9069\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>AttributeUsage\u5c5e\u6027\u306b\u306f3\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>ValidOn\uff1a\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u304c\u9069\u7528\u3067\u304d\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u8981\u7d20\u306e\u30bf\u30a4\u30d7\u3067\u3059\u3002\u8907\u6570\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u5024\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u3088\u304f\u4f7f\u308f\u308c\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u5024\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002AttributeTargets.Assembly\uff08\u30a2\u30bb\u30f3\u30d6\u30ea\uff09\u3001AttributeTargets.Class\uff08\u30af\u30e9\u30b9\uff09\u3001AttributeTargets.Method\uff08\u30e1\u30bd\u30c3\u30c9\uff09\u3001AttributeTargets.Property\uff08\u30d7\u30ed\u30d1\u30c6\u30a3\uff09\u3001AttributeTargets.Field\uff08\u30d5\u30a3\u30fc\u30eb\u30c9\uff09\u306a\u3069\u3002<\/li>\n<li>AllowMultiple: \u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u3092\u540c\u3058\u30d7\u30ed\u30b0\u30e9\u30e0\u8981\u7d20\u306b\u8907\u6570\u56de\u9069\u7528\u53ef\u80fd\u306b\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002 true \u306e\u5834\u5408\u3001\u8907\u6570\u56de\u9069\u7528\u3067\u304d\u307e\u3059\u3002 false \u306e\u5834\u5408\u30011 \u56de\u306e\u307f\u9069\u7528\u3067\u304d\u307e\u3059\u3002 \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306f false \u3067\u3059\u3002<\/li>\n<li>\u7d99\u627f\u53ef\u80fd\uff1a\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u7d99\u627f\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002 true\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u306f\u89aa\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u7d99\u627f\u3057\u307e\u3059\u3002 false\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u306f\u89aa\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u7d99\u627f\u3057\u307e\u305b\u3093\u3002 \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306ftrue\u3067\u3059\u3002<\/li>\n<\/ol>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>[<span class=\"hljs-meta\">AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)<\/span>]\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">CustomAttribute<\/span> : <span class=\"hljs-title\">Attribute<\/span>\r\n{\r\n<span class=\"hljs-comment\">\/\/ \u81ea\u5b9a\u4e49\u5c5e\u6027\u7684\u4ee3\u7801\u903b\u8f91<\/span>\r\n}\r\n[<span class=\"hljs-meta\">Custom<\/span>] <span class=\"hljs-comment\">\/\/ \u53ea\u80fd\u5e94\u7528\u4e8e\u7c7b\u548c\u65b9\u6cd5<\/span>\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">MyClass<\/span>\r\n{\r\n[<span class=\"hljs-meta\">Custom<\/span>] <span class=\"hljs-comment\">\/\/ \u53ea\u80fd\u5e94\u7528\u4e8e\u7c7b\u548c\u65b9\u6cd5<\/span>\r\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title\">MyMethod<\/span>()<\/span>\r\n{\r\n<span class=\"hljs-comment\">\/\/ \u65b9\u6cd5\u7684\u4ee3\u7801\u903b\u8f91<\/span>\r\n}\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001CustomAttribute\u3092\u30af\u30e9\u30b9\u3068\u30e1\u30bd\u30c3\u30c9\u306b\u3057\u304b\u9069\u7528\u3067\u304d\u305a\u3001\u8907\u6570\u56de\u306f\u9069\u7528\u3067\u304d\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u5b50\u30af\u30e9\u30b9\u306b\u5f15\u304d\u7d99\u304c\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001MyClass\u30af\u30e9\u30b9\u3068MyMethod\u30e1\u30bd\u30c3\u30c9\u306e\u4e21\u65b9\u306bCustomAttribute\u3092\u9069\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>AttributeUsage \u30af\u30e9\u30b9\u306f\u3001\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u306e\u4f7f\u7528\u898f\u5247\u3092\u6307\u5b9a\u3059\u308b\u305f\u3081\u306e\u7279\u6027\u30af\u30e9\u30b9\u3067\u3059\u3002AttributeUsage \u7279\u6027\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u3092\u30af\u30e9\u30b9\u3084\u30e1\u30bd\u30c3\u30c9\u3001\u30d5\u30a3\u30fc\u30eb\u30c9\u306a\u3069\u306e\u7279\u5b9a\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u8981\u7d20\u306b\u306e\u307f [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-134022","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C#AttributeUsage\u306e\u57fa\u790e - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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