{"id":88292,"date":"2024-03-21T09:35:03","date_gmt":"2024-03-21T00:35:03","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/asp-net%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%89%e3%83%ad%e3%83%83%e3%83%97%e3%83%80%e3%82%a6%e3%83%b3%e3%83%aa%e3%82%b9%e3%83%88%e3%81%b8%e3%81%ae%e3%83%87%e3%83%bc%e3%82%bf%e3%83%90%e3%82%a4\/"},"modified":"2024-04-04T09:39:02","modified_gmt":"2024-04-04T00:39:02","slug":"asp-net%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%89%e3%83%ad%e3%83%83%e3%83%97%e3%83%80%e3%82%a6%e3%83%b3%e3%83%aa%e3%82%b9%e3%83%88%e3%81%b8%e3%81%ae%e3%83%87%e3%83%bc%e3%82%bf%e3%83%90%e3%82%a4","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/asp-net%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%89%e3%83%ad%e3%83%83%e3%83%97%e3%83%80%e3%82%a6%e3%83%b3%e3%83%aa%e3%82%b9%e3%83%88%e3%81%b8%e3%81%ae%e3%83%87%e3%83%bc%e3%82%bf%e3%83%90%e3%82%a4\/","title":{"rendered":"ASP.NET\u306b\u304a\u3051\u308b\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u30ea\u30b9\u30c8\u3078\u306e\u30c7\u30fc\u30bf\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\u306e\u5b9f\u73fe\u65b9\u6cd5\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002"},"content":{"rendered":"<p>ASP.NET \u3067\u306f\u3001\u4ee5\u4e0b\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066 DropDownList \u306e\u30c7\u30fc\u30bf\u3092\u30d0\u30a4\u30f3\u30c9\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u9759\u7684\u306a\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u306e\u30d0\u30a4\u30f3\u30c9\u3092\u4f7f\u7528\uff1a\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u305b\u305a\u306b\u3001\u30a2\u30b9\u30da\u30c3\u30af\u30b9 \u30d5\u30a1\u30a4\u30eb\u306b `DropdownList` \u306e `Items` \u3092\u76f4\u63a5\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u4f8b\uff1a<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">asp:DropDownList<\/span> <span class=\"hljs-attr\">ID<\/span>=<span class=\"hljs-string\">\"ddlCity\"<\/span> <span class=\"hljs-attr\">runat<\/span>=<span class=\"hljs-string\">\"server\"<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">asp:ListItem<\/span> <span class=\"hljs-attr\">Text<\/span>=<span class=\"hljs-string\">\"New York\"<\/span> <span class=\"hljs-attr\">Value<\/span>=<span class=\"hljs-string\">\"NY\"<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">asp:ListItem<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">asp:ListItem<\/span> <span class=\"hljs-attr\">Text<\/span>=<span class=\"hljs-string\">\"Los Angeles\"<\/span> <span class=\"hljs-attr\">Value<\/span>=<span class=\"hljs-string\">\"LA\"<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">asp:ListItem<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">asp:ListItem<\/span> <span class=\"hljs-attr\">Text<\/span>=<span class=\"hljs-string\">\"Chicago\"<\/span> <span class=\"hljs-attr\">Value<\/span>=<span class=\"hljs-string\">\"CH\"<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">asp:ListItem<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">asp:DropDownList<\/span>&gt;<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>\u52d5\u7684\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066: \u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u3092\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b3\u30fc\u30c9\u3067\u30d0\u30a4\u30f3\u30c9\u3067\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u30c7\u30fc\u30bf\u3092\u30af\u30a8\u30ea\u3057\u3066DropDownList\u306b\u30d0\u30a4\u30f3\u30c9\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-function\"><span class=\"hljs-keyword\">protected<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title\">Page_Load<\/span>(<span class=\"hljs-params\"><span class=\"hljs-built_in\">object<\/span> sender, EventArgs e<\/span>)<\/span>\r\n{\r\n    <span class=\"hljs-keyword\">if<\/span> (!IsPostBack)\r\n    {\r\n        <span class=\"hljs-comment\">\/\/ \u67e5\u8be2\u6570\u636e\u5e93\u83b7\u53d6\u57ce\u5e02\u5217\u8868<\/span>\r\n        List&lt;City&gt; cities = GetCities();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u7ed1\u5b9a\u6570\u636e\u5230DropDownList<\/span>\r\n        ddlCity.DataSource = cities;\r\n        ddlCity.DataTextField = <span class=\"hljs-string\">\"CityName\"<\/span>; <span class=\"hljs-comment\">\/\/ \u663e\u793a\u57ce\u5e02\u540d\u79f0<\/span>\r\n        ddlCity.DataValueField = <span class=\"hljs-string\">\"CityCode\"<\/span>; <span class=\"hljs-comment\">\/\/ \u9009\u4e2d\u9879\u7684\u503c\u4e3a\u57ce\u5e02\u4ee3\u7801<\/span>\r\n        ddlCity.DataBind();\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>City\u3068\u3044\u3046\u72ec\u81ea\u306e\u30af\u30e9\u30b9\u306f\u90fd\u5e02\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8868\u3057\u3066\u304a\u308a\u3001CityName\u3068CityCode\u306f\u305d\u306e\u5c5e\u6027\u3067\u3001\u305d\u308c\u305e\u308c\u90fd\u5e02\u540d\u3068\u90fd\u5e02\u30b3\u30fc\u30c9\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>SQL \u30c7\u30fc\u30bf\u30bd\u30fc\u30b9<\/li>\n<li>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">asp:DropDownList<\/span> <span class=\"hljs-attr\">ID<\/span>=<span class=\"hljs-string\">\"ddlCity\"<\/span> <span class=\"hljs-attr\">runat<\/span>=<span class=\"hljs-string\">\"server\"<\/span> <span class=\"hljs-attr\">DataSourceID<\/span>=<span class=\"hljs-string\">\"dsCities\"<\/span> <span class=\"hljs-attr\">DataTextField<\/span>=<span class=\"hljs-string\">\"CityName\"<\/span> <span class=\"hljs-attr\">DataValueField<\/span>=<span class=\"hljs-string\">\"CityCode\"<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">asp:DropDownList<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">asp:SqlDataSource<\/span> <span class=\"hljs-attr\">ID<\/span>=<span class=\"hljs-string\">\"dsCities\"<\/span> <span class=\"hljs-attr\">runat<\/span>=<span class=\"hljs-string\">\"server\"<\/span> <span class=\"hljs-attr\">ConnectionString<\/span>=<span class=\"hljs-string\">\"&lt;%$ ConnectionStrings:MyConnectionString %&gt;\"<\/span> <span class=\"hljs-attr\">SelectCommand<\/span>=<span class=\"hljs-string\">\"SELECT CityCode, CityName FROM Cities\"<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">asp:SqlDataSource<\/span>&gt;<\/span>\r\n<\/code><\/pre>\n<p>SqlDataSource\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3067\u3001ConnectionString\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u6587\u5b57\u5217\u3001SelectCommand\u306f\u554f\u3044\u5408\u308f\u305b\u6587\u3067\u3059\u3002<\/p>\n<p>ASP.NET \u306b\u304a\u3051\u308b DropDownList \u306e\u30c7\u30fc\u30bf\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\u306b\u306f\u3001\u4e00\u822c\u7684\u306a\u65b9\u6cd5\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u65b9\u6cd5\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ASP.NET \u3067\u306f\u3001\u4ee5\u4e0b\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066 DropDownList \u306e\u30c7\u30fc\u30bf\u3092\u30d0\u30a4\u30f3\u30c9\u3067\u304d\u307e\u3059\u3002 \u9759\u7684\u306a\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u306e\u30d0\u30a4\u30f3\u30c9\u3092\u4f7f\u7528\uff1a\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u305b\u305a\u306b\u3001\u30a2\u30b9\u30da\u30c3\u30af\u30b9 \u30d5\u30a1\u30a4\u30eb\u306b `DropdownList` \u306e  [&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-88292","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>ASP.NET\u306b\u304a\u3051\u308b\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u30ea\u30b9\u30c8\u3078\u306e\u30c7\u30fc\u30bf\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\u306e\u5b9f\u73fe\u65b9\u6cd5\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002 - 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\u9759\u7684\u306a\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u306e\u30d0\u30a4\u30f3\u30c9\u3092\u4f7f\u7528\uff1a\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u305b\u305a\u306b\u3001\u30a2\u30b9\u30da\u30c3\u30af\u30b9 \u30d5\u30a1\u30a4\u30eb\u306b `DropdownList` \u306e [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/asp-net\u306b\u304a\u3051\u308b\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u30ea\u30b9\u30c8\u3078\u306e\u30c7\u30fc\u30bf\u30d0\u30a4\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-21T00:35:03+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-04T00:39:02+00:00\" \/>\n<meta name=\"author\" content=\"\u512a\u6597, \u671d\u967d\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u512a\u6597, \u671d\u967d\" 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