{"id":332,"date":"2014-07-25T16:07:06","date_gmt":"2014-07-25T07:07:06","guid":{"rendered":"http:\/\/gomocool.net\/gomokulog\/?p=332"},"modified":"2014-07-25T16:19:03","modified_gmt":"2014-07-25T07:19:03","slug":"asp-net-dropdownlist%e3%81%ab%e3%83%90%e3%82%a4%e3%83%b3%e3%83%89","status":"publish","type":"post","link":"https:\/\/gomokulog.gomocool.net\/?p=332","title":{"rendered":"[ASP.NET] DropDownList\u306b\u30d0\u30a4\u30f3\u30c9"},"content":{"rendered":"

ASP.NET\u306eWeb\u30d5\u30a9\u30fc\u30e0\u3092\u4f7f\u3063\u3066\u3044\u308b\u3068\u3001DropDownList\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3088\u304f\u4f7f\u3046\u3002
\nDropDownList\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u30c7\u30fc\u30bf\u306e\u30bb\u30c3\u30c8\u65b9\u6cd5\u304c\u3042\u308b\u3002<\/p>\n

\u76f4\u63a5aspx\u30d5\u30a1\u30a4\u30eb\u4e0a\u306b\u66f8\u304f<\/h3>\n

\u5909\u308f\u3089\u306a\u3044\u5024\u306a\u3089\u3001\u3053\u308c\u3067\u5341\u5206\u3002<\/p>\n

       <asp:DropDownList ID=\"DropDownList0\" runat=\"server\">\r\n           <asp:ListItem Value=\"4\">April<\/asp:ListItem>\r\n           <asp:ListItem Value=\"5\">May<\/asp:ListItem>\r\n           <asp:ListItem Value=\"6\">June<\/asp:ListItem>\r\n       <\/asp:DropDownList><\/pre>\n
<\/h3>\n
 <\/p>\n
ListItem\u30af\u30e9\u30b9\u3092\u8ffd\u52a0\u3059\u308b<\/h3>\n
\u30b3\u30fc\u30c9\u5074\u3067\u3001\u3061\u3083\u3061\u3083\u3063\u3068\u8ffd\u52a0\u3059\u308b\u5834\u5408\u306a\u3069\u306b\u3002<\/p>\n
        \/\/ListItem\u3092\u8ffd\u52a0\r\n        this.DropDownList1.Items.Clear();\r\n        this.DropDownList1.Items.Add(new ListItem(\"4\u6708\", \"4\"));\r\n        this.DropDownList1.Items.Add(new ListItem(\"5\u6708\", \"5\"));\r\n        this.DropDownList1.Items.Add(new ListItem(\"6\u6708\", \"6\"));<\/pre>\n
<\/h3>\n
 <\/p>\n
\u00a0\u30d0\u30a4\u30f3\u30c9(Bind)\u3059\u308b<\/h3>\n
\u305d\u3057\u3066\u3001\u30c7\u30fc\u30bf\u30d0\u30a4\u30f3\u30c9\u6a5f\u80fd\u3002<\/p>\n
Dictionary\u3092Bind<\/h4>\n
\u30ad\u30fc\u3001\u30d0\u30ea\u30e5\u30fc\u306a\u3001Dictinary\u306b\u306fDropDownList\u306f\u76f8\u6027\u304c\u3044\u3044\u6c17\u304c\u3059\u308b\u3002
\nDataTextFiled\u3068DataValueField\u306b\u3001Dicionary\u306e\u4e2d\u8eab\u3067\u3042\u308bKeyValuePair\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u540d\u3092\u5165\u308c\u308b\u3002
\n(\u5165\u308c\u306a\u3044\u5834\u5408\u3001[\u536f\u6708,4] \u3068\u3044\u3063\u305f\u611f\u3058\u3067\u30bb\u30c3\u30c8\u3067Text\u3068Value\u306b\u5165\u308b\u3002)<\/p>\n
        \/\/Dictionary\u3092Bind\r\n        var dic = new Dictionary<string,int>();\r\n        dic.Add(\"\u536f\u6708\", 4);\r\n        dic.Add(\"\u7690\u6708\", 5);\r\n        dic.Add(\"\u6c34\u7121\u6708\", 6);\r\n\r\n        this.DropDownList2.DataSource = dic;\r\n        this.DropDownList2.DataTextField = \"Key\";\r\n        this.DropDownList2.DataValueField = \"Value\";\r\n        this.DropDownList2.DataBind();<\/pre>\n
<\/h4>\n
\u00a0List\u3092Bind<\/h4>\n
List\u3082\u30d0\u30a4\u30f3\u30c9\u3067\u304d\u308b\u3002\u3061\u306a\u307f\u306b\u3001Text\u3082Value\u3082\u540c\u3058\u5024\u306b\u306a\u308b\u3002<\/p>\n
        \/\/List\u3092Bind\r\n        var list = new List<String>();\r\n        list.Add(\"April\");\r\n        list.Add(\"May\");\r\n        list.Add(\"June\");\r\n\r\n        this.DropDownList3.DataSource = list;\r\n        this.DropDownList3.DataBind();<\/pre>\n
 <\/p>\n
DataTable\u3092\u30d0\u30a4\u30f3\u30c9<\/h4>\n
\u4f8b\u3067\u306f\u3001\u305d\u306e\u5834\u3067DataTable\u4f5c\u3063\u3066\u308b\u3051\u3069\u3001SQL\u3067\u53d6\u5f97\u3057\u305f\u30c6\u30fc\u30d6\u30eb\u3092\u30d0\u30a4\u30f3\u30c9\u3059\u308b\u3068\u304d\u306b\u4f7f\u3048\u308b\u3002<\/p>\n
        \/\/DataTable\u3092\u30d0\u30a4\u30f3\u30c9\r\n        var dt = new DataTable();\r\n        dt.Columns.Add(\"name\", typeof(string));\r\n        dt.Columns.Add(\"age\", typeof(int));\r\n\r\n        var newRow = dt.NewRow();\r\n        newRow[\"name\"] = \"yamada\";\r\n        newRow[\"age\"] = 20;\r\n        dt.Rows.Add(newRow);\r\n\r\n        newRow = dt.NewRow();\r\n        newRow[\"name\"] = \"suzuki\";\r\n        newRow[\"age\"] = 25;\r\n        dt.Rows.Add(newRow);\r\n\r\n        this.DropDownList5.DataSource = dt;\r\n        this.DropDownList5.DataTextField = \"name\";\r\n        this.DropDownList5.DataValueField = \"age\";\r\n        this.DropDownList5.DataBind();<\/pre>\n
 <\/p>\n
\u30af\u30e9\u30b9\u306eList\u3092Bind<\/h4>\n
\u3055\u3089\u306b\u3001\u81ea\u524d\u3067\u4f5c\u3063\u305f\u30af\u30e9\u30b9\u306b\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u3042\u308c\u3070\u3001List\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306b\u5165\u3063\u3066\u3044\u308b\u30af\u30e9\u30b9\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u30d0\u30a4\u30f3\u30c9\u3067\u304d\u308b\u3002<\/p>\n
        \/\/\u30af\u30e9\u30b9\u306eList\u3092Bind\r\n        var userList = new List<MyUser>();\r\n        userList.Add(new MyUser(\"yamada\", 18));\r\n        userList.Add(new MyUser(\"suzuki\", 21));\r\n        userList.Add(new MyUser(\"satou\", 32));\r\n\r\n        this.DropDownList4.DataSource = userList;\r\n        this.DropDownList4.DataTextField = \"Name\";\r\n        this.DropDownList4.DataValueField = \"Age\";\r\n        this.DropDownList4.DataBind();<\/pre>\n
    class MyUser\r\n    {\r\n        \/\/\u81ea\u52d5\u30d7\u30ed\u30d1\u30c6\u30a3\r\n        public String Name { get; set; }    \r\n        public int Age { get; set; }\r\n\r\n        public MyUser(String name, int age)\r\n        {\r\n            this.Name = name;\r\n            this.Age = age;\r\n        }\r\n    }<\/pre>\n
 <\/p>\n
\u4f8b\u3067\u306fC#\u3060\u304c\u3001VB.NET\u3082\u307b\u307c\u540c\u3058\u3002<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
ASP.NET\u306eWeb\u30d5\u30a9\u30fc\u30e0\u3092\u4f7f\u3063\u3066\u3044\u308b\u3068\u3001DropDownList\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3088\u304f\u4f7f\u3046\u3002 DropDownList\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u30c7\u30fc\u30bf\u306e\u30bb\u30c3\u30c8\u65b9\u6cd5\u304c\u3042\u308b\u3002 \u76f4\u63a5aspx\u30d5\u30a1\u30a4\u30eb\u4e0a\u306b\u66f8\u304f \u5909\u308f\u3089\u306a\u3044\u5024\u306a\u3089\u3001\u3053\u308c\u3067\u5341…  more →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66],"tags":[18],"class_list":["post-332","post","type-post","status-publish","format-standard","hentry","category-dot-net","tag-asp-net"],"_links":{"self":[{"href":"https:\/\/gomokulog.gomocool.net\/index.php?rest_route=\/wp\/v2\/posts\/332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gomokulog.gomocool.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gomokulog.gomocool.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gomokulog.gomocool.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gomokulog.gomocool.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=332"}],"version-history":[{"count":5,"href":"https:\/\/gomokulog.gomocool.net\/index.php?rest_route=\/wp\/v2\/posts\/332\/revisions"}],"predecessor-version":[{"id":337,"href":"https:\/\/gomokulog.gomocool.net\/index.php?rest_route=\/wp\/v2\/posts\/332\/revisions\/337"}],"wp:attachment":[{"href":"https:\/\/gomokulog.gomocool.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=332"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gomokulog.gomocool.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=332"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gomokulog.gomocool.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}