記事編集

日付

ジャンルのカテゴリ―名

タイトル

内容の要旨

<div style="flex: 1 1 0%; display: flex; overflow: hidden; flex-direction: column; height: 368px; box-sizing: border-box; padding: 20px 20px 0px; color: rgb(0, 0, 0); font-family: Roboto, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;" data-pasted="true"><div style="display: flex; flex: 1 1 0%; position: relative; min-width: 0px; height: 256px; flex-direction: column;"><div tabindex="0" style="color: rgba(0, 0, 0, 0.8); padding: 0px; flex: 1 1 0%; font-size: 16px; line-height: 26px; font-weight: 400; overflow: auto; max-height: 420px;"><p style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 4px; padding: revert; -webkit-line-clamp: revert;">「検索キーワード：<a data-fr-linked="true" href="//asp.net" data-pasted="true">asp.net</a> mvcで左側のcolumn内に「データベースから動的に、カテゴリー分けされた複数のreferenceページへのメニュー」を持つbootstrap 版のサンプルhtmlコードを教えてください。</p><p style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 4px; padding: revert; -webkit-line-clamp: revert;">modelは、category.csとreferencepage.csです。Referencepageクラス内には、&rdquo;string Content&quot;フィールドを含めてください、そしてこのコードを 全ページ共通の左カラムメニューにする方法を教えてください。」</p><p style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 4px; padding: revert; -webkit-line-clamp: revert;"><br></p><p style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 4px; padding: revert; -webkit-line-clamp: revert;">以下に <strong style="font-weight: 700;">ASP.NET MVC + Bootstrap</strong> で、左カラムに「データベースから動的に取得したカテゴリー別の複数の ReferencePage へのリンクメニュー」を表示するサンプルコードを示します。</p><p style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 4px; padding: revert; -webkit-line-clamp: revert;">モデルは&nbsp;<strong style="font-weight: 700;">Category.cs</strong> と&nbsp;<strong style="font-weight: 700;">ReferencePage.cs</strong> を使い、<code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255);">ReferencePage</code> に&nbsp;<code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255);">string Content</code> フィールドを含めています。<br>さらに、このメニューを&nbsp;<strong style="font-weight: 700;">全ページ共通の左カラム</strong> にする方法も解説します。</p><h2 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: revert; padding: revert; font: 22px / 24px Roboto, Helvetica, sans-serif; height: 32px; -webkit-line-clamp: 1; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-box-orient: vertical;">1. モデル定義</h2><pre data-priority="2" style="background: none 0% 0% / auto repeat scroll padding-box border-box rgb(245, 245, 245); border-color: rgba(0, 0, 0, 0.1); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; border-radius: 8px; overflow: hidden;"><div style="display: flex; height: 28px; flex-direction: row; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid rgba(0, 0, 0, 0.1); background: none 0% 0% / auto repeat scroll padding-box border-box rgb(240, 243, 255);"><h5 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 0px; padding: revert; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; line-height: 18px; font-family: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-language-override: inherit; font-size: 16px; display: inline-block; color: rgb(60, 81, 180);">Csharp</h5><div style="height: 28px;"><button type="button" tabindex="" title="Copy code" style="box-sizing: border-box; margin: 0px; padding: 0px; font: 400 13px / 20px Roboto, Helvetica, sans-serif; background-color: rgb(217, 223, 251); border-color: rgba(0, 0, 0, 0); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; display: grid; grid-auto-flow: column; align-items: center; gap: 4px; cursor: pointer; color: rgb(60, 81, 180) !important; text-decoration: none !important; border-radius: 9999px; padding-block: 3px; padding-inline: 8px;"><div style="box-sizing: border-box; margin: 0px; padding: 0px; min-inline-size: 0px; max-inline-size: 100%; white-space: nowrap; overflow: clip; text-overflow: ellipsis; max-block-size: calc(1lh);">Copy code</div></button></div></div><code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255); display: block; white-space: pre-wrap; overflow-wrap: anywhere; padding: 8px 16px 16px;"><span style="color: rgb(106, 115, 125);">// Models/Category.cs</span>
<span style="color: rgb(215, 58, 73);">using</span> System.Collections.Generic;
<span style="color: rgb(215, 58, 73);">using</span> System.ComponentModel.DataAnnotations;

<span style="color: rgb(215, 58, 73);">namespace</span> <span style="color: rgb(111, 66, 193);">YourApp.Models</span>
{
    <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(215, 58, 73);">class</span> <span style="color: rgb(111, 66, 193);">Category</span>
    {
        <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(227, 98, 9);">int</span> Id { <span style="color: rgb(215, 58, 73);">get</span>; <span style="color: rgb(215, 58, 73);">set</span>; }

        [<span style="color: rgb(0, 92, 197);">Required</span>]
        <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(227, 98, 9);">string</span> Name { <span style="color: rgb(215, 58, 73);">get</span>; <span style="color: rgb(215, 58, 73);">set</span>; }

        <span style="color: rgb(106, 115, 125);">// ナビゲーションプロパティ</span>
        <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(215, 58, 73);">virtual</span> ICollection&lt;ReferencePage&gt; ReferencePages { <span style="color: rgb(215, 58, 73);">get</span>; <span style="color: rgb(215, 58, 73);">set</span>; }
    }
}
</code></pre><pre data-priority="2" style="background: none 0% 0% / auto repeat scroll padding-box border-box rgb(245, 245, 245); border-color: rgba(0, 0, 0, 0.1); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; border-radius: 8px; overflow: hidden;"><div style="display: flex; height: 28px; flex-direction: row; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid rgba(0, 0, 0, 0.1); background: none 0% 0% / auto repeat scroll padding-box border-box rgb(240, 243, 255);"><h5 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 0px; padding: revert; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; line-height: 18px; font-family: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-language-override: inherit; font-size: 16px; display: inline-block; color: rgb(60, 81, 180);">Csharp</h5><div style="height: 28px;"><button type="button" tabindex="" title="Copy code" style="box-sizing: border-box; margin: 0px; padding: 0px; font: 400 13px / 20px Roboto, Helvetica, sans-serif; background-color: rgb(217, 223, 251); border-color: rgba(0, 0, 0, 0); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; display: grid; grid-auto-flow: column; align-items: center; gap: 4px; cursor: pointer; color: rgb(60, 81, 180) !important; text-decoration: none !important; border-radius: 9999px; padding-block: 3px; padding-inline: 8px;"><div style="box-sizing: border-box; margin: 0px; padding: 0px; min-inline-size: 0px; max-inline-size: 100%; white-space: nowrap; overflow: clip; text-overflow: ellipsis; max-block-size: calc(1lh);">Copy code</div></button></div></div><code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255); display: block; white-space: pre-wrap; overflow-wrap: anywhere; padding: 8px 16px 16px;"><span style="color: rgb(106, 115, 125);">// Models/ReferencePage.cs</span>
<span style="color: rgb(215, 58, 73);">using</span> System.ComponentModel.DataAnnotations;

<span style="color: rgb(215, 58, 73);">namespace</span> <span style="color: rgb(111, 66, 193);">YourApp.Models</span>
{
    <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(215, 58, 73);">class</span> <span style="color: rgb(111, 66, 193);">ReferencePage</span>
    {
        <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(227, 98, 9);">int</span> Id { <span style="color: rgb(215, 58, 73);">get</span>; <span style="color: rgb(215, 58, 73);">set</span>; }

        [<span style="color: rgb(0, 92, 197);">Required</span>]
        <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(227, 98, 9);">string</span> Title { <span style="color: rgb(215, 58, 73);">get</span>; <span style="color: rgb(215, 58, 73);">set</span>; }

        <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(227, 98, 9);">string</span> Content { <span style="color: rgb(215, 58, 73);">get</span>; <span style="color: rgb(215, 58, 73);">set</span>; } <span style="color: rgb(106, 115, 125);">// ページ本文</span>

        <span style="color: rgb(106, 115, 125);">// 外部キー</span>
        <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(227, 98, 9);">int</span> CategoryId { <span style="color: rgb(215, 58, 73);">get</span>; <span style="color: rgb(215, 58, 73);">set</span>; }
        <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(215, 58, 73);">virtual</span> Category Category { <span style="color: rgb(215, 58, 73);">get</span>; <span style="color: rgb(215, 58, 73);">set</span>; }
    }
}
</code></pre><h2 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: revert; padding: revert; font: 22px / 24px Roboto, Helvetica, sans-serif; height: 32px; -webkit-line-clamp: 1; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-box-orient: vertical;">2. コントローラー（メニュー用）</h2><p style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 4px; padding: revert; -webkit-line-clamp: revert;">共通メニューは&nbsp;<strong style="font-weight: 700;">ChildAction / ViewComponent</strong> で作るのがベストです。<br>ASP.NET MVC 5 では&nbsp;<code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255);">ChildActionOnly</code> を使います。</p><pre data-priority="2" style="background: none 0% 0% / auto repeat scroll padding-box border-box rgb(245, 245, 245); border-color: rgba(0, 0, 0, 0.1); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; border-radius: 8px; overflow: hidden;"><div style="display: flex; height: 28px; flex-direction: row; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid rgba(0, 0, 0, 0.1); background: none 0% 0% / auto repeat scroll padding-box border-box rgb(240, 243, 255);"><h5 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 0px; padding: revert; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; line-height: 18px; font-family: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-language-override: inherit; font-size: 16px; display: inline-block; color: rgb(60, 81, 180);">Csharp</h5><div style="height: 28px;"><button type="button" tabindex="" title="Copy code" style="box-sizing: border-box; margin: 0px; padding: 0px; font: 400 13px / 20px Roboto, Helvetica, sans-serif; background-color: rgb(217, 223, 251); border-color: rgba(0, 0, 0, 0); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; display: grid; grid-auto-flow: column; align-items: center; gap: 4px; cursor: pointer; color: rgb(60, 81, 180) !important; text-decoration: none !important; border-radius: 9999px; padding-block: 3px; padding-inline: 8px;"><div style="box-sizing: border-box; margin: 0px; padding: 0px; min-inline-size: 0px; max-inline-size: 100%; white-space: nowrap; overflow: clip; text-overflow: ellipsis; max-block-size: calc(1lh);">Copy code</div></button></div></div><code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255); display: block; white-space: pre-wrap; overflow-wrap: anywhere; padding: 8px 16px 16px;"><span style="color: rgb(106, 115, 125);">// Controllers/MenuController.cs</span>
<span style="color: rgb(215, 58, 73);">using</span> System.Linq;
<span style="color: rgb(215, 58, 73);">using</span> System.Web.Mvc;
<span style="color: rgb(215, 58, 73);">using</span> YourApp.Models;

<span style="color: rgb(215, 58, 73);">namespace</span> <span style="color: rgb(111, 66, 193);">YourApp.Controllers</span>
{
    <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(215, 58, 73);">class</span> <span style="color: rgb(111, 66, 193);">MenuController</span> : <span style="color: rgb(111, 66, 193);">Controller</span>
    {
        <span style="color: rgb(215, 58, 73);">private</span> <span style="color: rgb(215, 58, 73);">readonly</span> ApplicationDbContext _db = <span style="color: rgb(215, 58, 73);">new</span> ApplicationDbContext();

        [<span style="color: rgb(0, 92, 197);">ChildActionOnly</span>]
        <span style="color: rgb(215, 58, 73);">public</span> ActionResult <span style="color: rgb(111, 66, 193);">CategoryMenu</span>()
        {
            <span style="color: rgb(215, 58, 73);">var</span> categories = _db.Categories
                .OrderBy(c =&gt; c.Name)
                .ToList();

            <span style="color: rgb(215, 58, 73);">return</span> PartialView(<span style="color: rgb(3, 47, 98);">&quot;_CategoryMenu&quot;</span>, categories);
        }
    }
}
</code></pre><h2 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: revert; padding: revert; font: 22px / 24px Roboto, Helvetica, sans-serif; height: 32px; -webkit-line-clamp: 1; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-box-orient: vertical;">3. 部分ビュー（Bootstrap 左カラムメニュー）</h2><pre data-priority="2" style="background: none 0% 0% / auto repeat scroll padding-box border-box rgb(245, 245, 245); border-color: rgba(0, 0, 0, 0.1); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; border-radius: 8px; overflow: hidden;"><div style="display: flex; height: 28px; flex-direction: row; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid rgba(0, 0, 0, 0.1); background: none 0% 0% / auto repeat scroll padding-box border-box rgb(240, 243, 255);"><h5 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 0px; padding: revert; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; line-height: 18px; font-family: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-language-override: inherit; font-size: 16px; display: inline-block; color: rgb(60, 81, 180);">Html</h5><div style="height: 28px;"><button type="button" tabindex="" title="Copy code" style="box-sizing: border-box; margin: 0px; padding: 0px; font: 400 13px / 20px Roboto, Helvetica, sans-serif; background-color: rgb(217, 223, 251); border-color: rgba(0, 0, 0, 0); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; display: grid; grid-auto-flow: column; align-items: center; gap: 4px; cursor: pointer; color: rgb(60, 81, 180) !important; text-decoration: none !important; border-radius: 9999px; padding-block: 3px; padding-inline: 8px;"><div style="box-sizing: border-box; margin: 0px; padding: 0px; min-inline-size: 0px; max-inline-size: 100%; white-space: nowrap; overflow: clip; text-overflow: ellipsis; max-block-size: calc(1lh);">Copy code</div></button></div></div><code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255); display: block; white-space: pre-wrap; overflow-wrap: anywhere; padding: 8px 16px 16px;">@* Views/Menu/_CategoryMenu.cshtml *@
@model IEnumerable&lt;<span style="color: rgb(34, 134, 58);">YourApp.Models.Category</span>&gt;

&lt;<span style="color: rgb(34, 134, 58);">div</span> <span style="color: rgb(0, 92, 197);">class</span>=<span style="color: rgb(3, 47, 98);">&quot;list-group&quot;</span>&gt;
    @foreach (var category in Model)
    {
        &lt;<span style="color: rgb(34, 134, 58);">div</span> <span style="color: rgb(0, 92, 197);">class</span>=<span style="color: rgb(3, 47, 98);">&quot;list-group-item&quot;</span>&gt;
            &lt;<span style="color: rgb(34, 134, 58);">strong</span>&gt;@category.Name&lt;/<span style="color: rgb(34, 134, 58);">strong</span>&gt;
            &lt;<span style="color: rgb(34, 134, 58);">ul</span> <span style="color: rgb(0, 92, 197);">class</span>=<span style="color: rgb(3, 47, 98);">&quot;list-unstyled ms-3&quot;</span>&gt;
                @foreach (var page in category.ReferencePages.OrderBy(p =&gt; p.Title))
                {
                    &lt;<span style="color: rgb(34, 134, 58);">li</span>&gt;
                        &lt;<span style="color: rgb(34, 134, 58);">a</span> <span style="color: rgb(0, 92, 197);">href</span>=<span style="color: rgb(3, 47, 98);">&quot;@Url.Action(&quot;</span><span style="color: rgb(0, 92, 197);">Details</span>&quot;, &quot;<span style="color: rgb(0, 92, 197);">ReferencePage</span>&quot;, <span style="color: rgb(0, 92, 197);">new</span> { <span style="color: rgb(0, 92, 197);">id</span> = <span style="color: rgb(3, 47, 98);">page.Id</span> })&quot;&gt;
                            @page.Title
                        &lt;/<span style="color: rgb(34, 134, 58);">a</span>&gt;
                    &lt;/<span style="color: rgb(34, 134, 58);">li</span>&gt;
                }
            &lt;/<span style="color: rgb(34, 134, 58);">ul</span>&gt;
        &lt;/<span style="color: rgb(34, 134, 58);">div</span>&gt;
    }
&lt;/<span style="color: rgb(34, 134, 58);">div</span>&gt;
</code></pre><h2 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: revert; padding: revert; font: 22px / 24px Roboto, Helvetica, sans-serif; height: 32px; -webkit-line-clamp: 1; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-box-orient: vertical;">4. レイアウトに組み込む（全ページ共通）</h2><p style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 4px; padding: revert; -webkit-line-clamp: revert;"><code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255);">_Layout.cshtml</code> に左カラムを追加します。</p><pre data-priority="2" style="background: none 0% 0% / auto repeat scroll padding-box border-box rgb(245, 245, 245); border-color: rgba(0, 0, 0, 0.1); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; border-radius: 8px; overflow: hidden;"><div style="display: flex; height: 28px; flex-direction: row; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid rgba(0, 0, 0, 0.1); background: none 0% 0% / auto repeat scroll padding-box border-box rgb(240, 243, 255);"><h5 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 0px; padding: revert; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; line-height: 18px; font-family: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-language-override: inherit; font-size: 16px; display: inline-block; color: rgb(60, 81, 180);">Html</h5><div style="height: 28px;"><button type="button" tabindex="" title="Copy code" style="box-sizing: border-box; margin: 0px; padding: 0px; font: 400 13px / 20px Roboto, Helvetica, sans-serif; background-color: rgb(217, 223, 251); border-color: rgba(0, 0, 0, 0); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; display: grid; grid-auto-flow: column; align-items: center; gap: 4px; cursor: pointer; color: rgb(60, 81, 180) !important; text-decoration: none !important; border-radius: 9999px; padding-block: 3px; padding-inline: 8px;"><div style="box-sizing: border-box; margin: 0px; padding: 0px; min-inline-size: 0px; max-inline-size: 100%; white-space: nowrap; overflow: clip; text-overflow: ellipsis; max-block-size: calc(1lh);">Copy code</div></button></div></div><code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255); display: block; white-space: pre-wrap; overflow-wrap: anywhere; padding: 8px 16px 16px;">@* Views/Shared/_Layout.cshtml *@
<span style="color: rgb(0, 92, 197);">&lt;!DOCTYPE <span style="color: rgb(215, 58, 73);">html</span>&gt;</span>
&lt;<span style="color: rgb(34, 134, 58);">html</span>&gt;
&lt;<span style="color: rgb(34, 134, 58);">head</span>&gt;
    &lt;<span style="color: rgb(34, 134, 58);">meta</span> <span style="color: rgb(0, 92, 197);">charset</span>=<span style="color: rgb(3, 47, 98);">&quot;utf-8&quot;</span> /&gt;
    &lt;<span style="color: rgb(34, 134, 58);">title</span>&gt;@ViewBag.Title - MyApp&lt;/<span style="color: rgb(34, 134, 58);">title</span>&gt;
    &lt;<span style="color: rgb(34, 134, 58);">link</span> <span style="color: rgb(0, 92, 197);">href</span>=<span style="color: rgb(3, 47, 98);">&quot;~/Content/bootstrap.min.css&quot;</span> <span style="color: rgb(0, 92, 197);">rel</span>=<span style="color: rgb(3, 47, 98);">&quot;stylesheet&quot;</span> /&gt;
&lt;/<span style="color: rgb(34, 134, 58);">head</span>&gt;
&lt;<span style="color: rgb(34, 134, 58);">body</span>&gt;
    &lt;<span style="color: rgb(34, 134, 58);">div</span> <span style="color: rgb(0, 92, 197);">class</span>=<span style="color: rgb(3, 47, 98);">&quot;container-fluid&quot;</span>&gt;
        &lt;<span style="color: rgb(34, 134, 58);">div</span> <span style="color: rgb(0, 92, 197);">class</span>=<span style="color: rgb(3, 47, 98);">&quot;row&quot;</span>&gt;
            <span style="color: rgb(106, 115, 125);">&lt;!-- 左カラム --&gt;</span>
            &lt;<span style="color: rgb(34, 134, 58);">div</span> <span style="color: rgb(0, 92, 197);">class</span>=<span style="color: rgb(3, 47, 98);">&quot;col-md-3&quot;</span>&gt;
                @Html.Action(&quot;CategoryMenu&quot;, &quot;Menu&quot;)
            &lt;/<span style="color: rgb(34, 134, 58);">div</span>&gt;

            <span style="color: rgb(106, 115, 125);">&lt;!-- メインコンテンツ --&gt;</span>
            &lt;<span style="color: rgb(34, 134, 58);">div</span> <span style="color: rgb(0, 92, 197);">class</span>=<span style="color: rgb(3, 47, 98);">&quot;col-md-9&quot;</span>&gt;
                @RenderBody()
            &lt;/<span style="color: rgb(34, 134, 58);">div</span>&gt;
        &lt;/<span style="color: rgb(34, 134, 58);">div</span>&gt;
    &lt;/<span style="color: rgb(34, 134, 58);">div</span>&gt;

    &lt;<span style="color: rgb(34, 134, 58);">script</span> <span style="color: rgb(0, 92, 197);">src</span>=<span style="color: rgb(3, 47, 98);">&quot;~/Scripts/jquery.min.js&quot;</span>&gt;&lt;/<span style="color: rgb(34, 134, 58);">script</span>&gt;
    &lt;<span style="color: rgb(34, 134, 58);">script</span> <span style="color: rgb(0, 92, 197);">src</span>=<span style="color: rgb(3, 47, 98);">&quot;~/Scripts/bootstrap.bundle.min.js&quot;</span>&gt;&lt;/<span style="color: rgb(34, 134, 58);">script</span>&gt;
&lt;/<span style="color: rgb(34, 134, 58);">body</span>&gt;
&lt;/<span style="color: rgb(34, 134, 58);">html</span>&gt;
</code></pre><h2 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: revert; padding: revert; font: 22px / 24px Roboto, Helvetica, sans-serif; height: 32px; -webkit-line-clamp: 1; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-box-orient: vertical;">5. ReferencePage 詳細ページ例</h2><pre data-priority="2" style="background: none 0% 0% / auto repeat scroll padding-box border-box rgb(245, 245, 245); border-color: rgba(0, 0, 0, 0.1); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; border-radius: 8px; overflow: hidden;"><div style="display: flex; height: 28px; flex-direction: row; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid rgba(0, 0, 0, 0.1); background: none 0% 0% / auto repeat scroll padding-box border-box rgb(240, 243, 255);"><h5 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 0px; padding: revert; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; line-height: 18px; font-family: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-language-override: inherit; font-size: 16px; display: inline-block; color: rgb(60, 81, 180);">Csharp</h5><div style="height: 28px;"><button type="button" tabindex="" title="Copy code" style="box-sizing: border-box; margin: 0px; padding: 0px; font: 400 13px / 20px Roboto, Helvetica, sans-serif; background-color: rgb(217, 223, 251); border-color: rgba(0, 0, 0, 0); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; display: grid; grid-auto-flow: column; align-items: center; gap: 4px; cursor: pointer; color: rgb(60, 81, 180) !important; text-decoration: none !important; border-radius: 9999px; padding-block: 3px; padding-inline: 8px;"><div style="box-sizing: border-box; margin: 0px; padding: 0px; min-inline-size: 0px; max-inline-size: 100%; white-space: nowrap; overflow: clip; text-overflow: ellipsis; max-block-size: calc(1lh);">Copy code</div></button></div></div><code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255); display: block; white-space: pre-wrap; overflow-wrap: anywhere; padding: 8px 16px 16px;"><span style="color: rgb(106, 115, 125);">// Controllers/ReferencePageController.cs</span>
<span style="color: rgb(215, 58, 73);">using</span> System.Linq;
<span style="color: rgb(215, 58, 73);">using</span> System.Web.Mvc;
<span style="color: rgb(215, 58, 73);">using</span> YourApp.Models;

<span style="color: rgb(215, 58, 73);">namespace</span> <span style="color: rgb(111, 66, 193);">YourApp.Controllers</span>
{
    <span style="color: rgb(215, 58, 73);">public</span> <span style="color: rgb(215, 58, 73);">class</span> <span style="color: rgb(111, 66, 193);">ReferencePageController</span> : <span style="color: rgb(111, 66, 193);">Controller</span>
    {
        <span style="color: rgb(215, 58, 73);">private</span> <span style="color: rgb(215, 58, 73);">readonly</span> ApplicationDbContext _db = <span style="color: rgb(215, 58, 73);">new</span> ApplicationDbContext();

        <span style="color: rgb(215, 58, 73);">public</span> ActionResult <span style="color: rgb(111, 66, 193);">Details</span>(<span style="color: rgb(227, 98, 9);">int</span> id)
        {
            <span style="color: rgb(215, 58, 73);">var</span> page = _db.ReferencePages.FirstOrDefault(p =&gt; p.Id == id);
            <span style="color: rgb(215, 58, 73);">if</span> (page == <span style="color: rgb(0, 92, 197);">null</span>) <span style="color: rgb(215, 58, 73);">return</span> HttpNotFound();

            <span style="color: rgb(215, 58, 73);">return</span> View(page);
        }
    }
}
</code></pre><pre data-priority="2" style="background: none 0% 0% / auto repeat scroll padding-box border-box rgb(245, 245, 245); border-color: rgba(0, 0, 0, 0.1); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; border-radius: 8px; overflow: hidden;"><div style="display: flex; height: 28px; flex-direction: row; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid rgba(0, 0, 0, 0.1); background: none 0% 0% / auto repeat scroll padding-box border-box rgb(240, 243, 255);"><h5 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 0px; padding: revert; font-style: inherit; font-variant: inherit; font-weight: 700; font-stretch: inherit; line-height: 18px; font-family: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-language-override: inherit; font-size: 16px; display: inline-block; color: rgb(60, 81, 180);">Html</h5><div style="height: 28px;"><button type="button" tabindex="" title="Copy code" style="box-sizing: border-box; margin: 0px; padding: 0px; font: 400 13px / 20px Roboto, Helvetica, sans-serif; background-color: rgb(217, 223, 251); border-color: rgba(0, 0, 0, 0); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; display: grid; grid-auto-flow: column; align-items: center; gap: 4px; cursor: pointer; color: rgb(60, 81, 180) !important; text-decoration: none !important; border-radius: 9999px; padding-block: 3px; padding-inline: 8px;"><div style="box-sizing: border-box; margin: 0px; padding: 0px; min-inline-size: 0px; max-inline-size: 100%; white-space: nowrap; overflow: clip; text-overflow: ellipsis; max-block-size: calc(1lh);">Copy code</div></button></div></div><code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255); display: block; white-space: pre-wrap; overflow-wrap: anywhere; padding: 8px 16px 16px;">@* Views/ReferencePage/Details.cshtml *@
@model YourApp.Models.ReferencePage

&lt;<span style="color: rgb(34, 134, 58);">h2</span>&gt;@Model.Title&lt;/<span style="color: rgb(34, 134, 58);">h2</span>&gt;
&lt;<span style="color: rgb(34, 134, 58);">div</span>&gt;
    @Html.Raw(Model.Content)
&lt;/<span style="color: rgb(34, 134, 58);">div</span>&gt;
</code></pre><h2 style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: revert; padding: revert; font: 22px / 24px Roboto, Helvetica, sans-serif; height: 32px; -webkit-line-clamp: 1; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-box-orient: vertical;">6. ポイント</h2><ul style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: revert; padding: revert;"><li style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin-top: revert; margin-right: revert; margin-bottom: 8px; margin-left: revert; padding: revert;"><strong style="font-weight: 700;">全ページ共通化</strong>は&nbsp;<code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255);">_Layout.cshtml</code> に&nbsp;<code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255);">@Html.Action(&quot;CategoryMenu&quot;, &quot;Menu&quot;)</code> を入れることで実現。</li><li style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin-top: revert; margin-right: revert; margin-bottom: 8px; margin-left: revert; padding: revert;">Bootstrap の&nbsp;<code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255);">.list-group</code> と&nbsp;<code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255);">.list-unstyled</code> を使ってシンプルな階層メニューを作成。</li><li style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin-top: revert; margin-right: revert; margin-bottom: 8px; margin-left: revert; padding: revert;">データは&nbsp;<strong style="font-weight: 700;">Category &rarr; ReferencePages</strong> のリレーションで取得。</li><li style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin-top: revert; margin-right: revert; margin-bottom: 8px; margin-left: revert; padding: revert;"><code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255);">Content</code> フィールドは HTML を含む場合&nbsp;<code style="border-radius: 8px; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255);">@Html.Raw()</code> で表示。</li></ul><p style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 4px; padding: revert; -webkit-line-clamp: revert;">もし希望があれば、このメニューを&nbsp;<strong style="font-weight: 700;">Bootstrap のアコーディオン形式</strong> にして、カテゴリーをクリックするとページ一覧が開閉する形にもできます。<br>次にそれを実装したコードも作れますが、まずはこの基本版で動作確認するのが良いです。</p><p style="border: 0px; border-collapse: collapse; border-spacing: 0px; list-style-position: initial; list-style-image: initial; list-style-type: revert; margin: 4px; padding: revert; -webkit-line-clamp: revert;">この後、アコーディオン形式にした&nbsp;<strong style="font-weight: 700;">折りたたみ式カテゴリーメニュー版</strong> のコードも作成しますか？<br>そうすればより見やすくなります。</p></div></div></div><div style="color: rgba(0, 0, 0, 0.6); border-top: 0px; margin: 0px 20px; padding: 0px 0px 20px; height: 36px; display: flex; align-items: center; position: relative; font-family: Roboto, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;"><div style="flex: 1 1 0%; display: flex; gap: 8px; align-items: center;"><div style="display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-radius: 8px; color: rgba(0, 0, 0, 0.6); width: 300px; min-height: 40px; position: absolute; box-sizing: border-box; bottom: 18px; border-color: rgba(0, 0, 0, 0.1); border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0 stretch; background: none 0% 0% / auto repeat scroll padding-box border-box rgb(247, 249, 254); left: 172px;"><br></div></div></div><p data-f-id="pbf" style="text-align: center; font-size: 14px; margin-top: 30px; opacity: 0.65; font-family: sans-serif;">Powered by <a href="https://www.froala.com/wysiwyg-editor?pb=1" title="Froala Editor">Froala Editor</a></p>

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