{"id":486,"date":"2022-06-28T07:24:52","date_gmt":"2022-06-27T22:24:52","guid":{"rendered":"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=486"},"modified":"2022-06-28T13:15:27","modified_gmt":"2022-06-28T04:15:27","slug":"asp-net-core%e3%81%aedi%e3%81%abdbcontext%e3%82%92%e8%bf%bd%e5%8a%a0%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=486","title":{"rendered":"asp.net core\u306eDI\u306bDbContext\u3092\u8ffd\u52a0\u3059\u308b"},"content":{"rendered":"\n<p>asp.net core\u306fDI\u304c\u4f7f\u3048\u308b\u304c\u3001DbContext\u3092DI\u3055\u305b\u308b\u306e\u306b\u5c11\u3005\u624b\u9593\u53d6\u3063\u305f\u306e\u3067\u5099\u5fd8\u9332\u3068\u3057\u3066\u30e1\u30e2\u3002<\/p>\n\n\n\n<p>\u4f55\u306b\u6238\u60d1\u3063\u305f\u306e\u304b\u3068\u3044\u3046\u3068\u3001DbContext\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3068\u304d\u306b\u3001appsettings.json\u304b\u3089\u63a5\u7d9a\u6587\u5b57\u5217\u3092\u53d6\u308a\u51fa\u3057\u3066\u3001\u305d\u308c\u3092\u63a5\u7d9a\u306b\u4f7f\u3046\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u3061\u3083\u3093\u3068\u8aad\u3093\u3067\u3044\u308c\u3070\u76f4\u3050\u5206\u304b\u308b\u306e\u3060\u3051\u3069\u306d\u3047\u30fb\u30fb\u30fb<\/p>\n\n\n\n<p>\u3067\u3001\u7d50\u5c40\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u3067\u63a5\u7d9a\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u3066\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u4f5c\u6210\u304c\u53ef\u80fd\u3002(<strong>UseSqlServer<\/strong>\u306e\u90e8\u5206\u306f\u5b9f\u969b\u306eDBMS\u7528\u30c9\u30e9\u30a4\u30d0\u306b\u5408\u308f\u305b\u3066\u306d\u3063)<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-csharp\" data-file=\"Program.cs\" data-lang=\"C#\"><code>using Microsoft.EntityFrameworkCore;\nusing XXXContextNamespace;\n\u30fb\u30fb\u30fb\nvar builder = WebApplication.CreateBuilder(args);\n\u30fb\u30fb\u30fb\nbuilder.Services.AddDbContext&lt;XXXContext&gt;(opt=&gt;\n    opt.UseSqlServer(builder.Configuration.GetConnectionString(&quot;XXXConnection&quot;)));<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u3046\u3057\u3066\u304a\u304f\u3068\u3001\u4f8b\u3048\u3070webapp\u306a\u3089\u3070\u3001PageModel\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304b\u3089\u3001\u3053\u306eDbContext\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-csharp\" data-file=\"webapp PageModel\" data-lang=\"C#\"><code>using XXXContextNamespace;\n\u30fb\u30fb\u30fb\nprivate readonly ILogger&lt;IndexModel&gt; _logger;\nprivate readonly XXXContext _ctx;\npublic class IndexModel : PageModel {\n\tpublic IndexModel(ILogger&lt;IndexModel&gt; logger, XXXContext ctx) {\n\t\t_logger = logger;\n\t\t_ctx = ctx;\n\t\t\u30fb\u30fb\u30fb\n\t}\n}<\/code><\/pre><\/div>\n\n\n\n<p>Blazor Server\u306a\u3089\u3001\u3053\u3093\u306a\u611f\u3058<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-csharp\" data-file=\"blazor server\" data-lang=\"C#\"><code>@page &quot;\/&quot;\n@using XXXContextNamespace\n@inject XXXContext XXXCtx\n\u30fb\u30fb\u30fb\nXXX:&lt;select&gt;\n@if (XXXMasters != null) {\n\tforeach(var itm in XXXMasters) {\n\t\t&lt;option value=&quot;@itm.Key&quot;&gt;@itm.Name&lt;\/option&gt;\n\t}\n&lt;\/select&gt;\n\u30fb\u30fb\u30fb\n@code {\n\tprotected List&lt;XXXMaster&gt; XXXMasters = null!;\n\t\u30fb\u30fb\u30fb\n\tprotected async Task OnInitializeAsync() {\n\t\tvar q = XXXCtx.XXXMaster\u30fb\u30fb\u30fb;\n\t\tXXXMasters = await q.ToListAsync();\n\t}\n}<\/code><\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"<p>asp.net core\u306fDI\u304c\u4f7f\u3048\u308b\u304c\u3001DbContext\u3092DI\u3055\u305b\u308b\u306e\u306b\u5c11\u3005 &hellip; <a href=\"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=486\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/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":[18,12,14,23,4],"tags":[],"class_list":["post-486","post","type-post","status-publish","format-standard","hentry","category-net","category-asp-net-core","category-entity-framework","category-web","category-4"],"_links":{"self":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/486","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=486"}],"version-history":[{"count":5,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/486\/revisions"}],"predecessor-version":[{"id":492,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/486\/revisions\/492"}],"wp:attachment":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}