{"id":642,"date":"2023-02-09T11:47:53","date_gmt":"2023-02-09T02:47:53","guid":{"rendered":"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=642"},"modified":"2023-02-09T11:47:53","modified_gmt":"2023-02-09T02:47:53","slug":"blazor-dynamic-component","status":"publish","type":"post","link":"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=642","title":{"rendered":"blazor Dynamic Component"},"content":{"rendered":"\n

.NET6\u304b\u3089\u3001blazor\u306e\u30bf\u30b0\u3068\u3057\u3066\u3001<DynamicComponent>\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u305f\u3002<\/p>\n\n\n\n

\u3053\u306e\u30bf\u30b0\u306frazor\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u52d5\u7684\u306b\u6307\u5b9a\u3057\u3066\u8868\u793a\u3059\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u30da\u30fc\u30b8\u5185\u3067\u3001\u8868\u793a\u3059\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u5207\u66ff\u306a\u3069\u3092\u884c\u3046\u4e8b\u3092\u60f3\u5b9a\u3057\u3066\u3044\u308b\u3068\u601d\u308f\u308c\u308b\u3002<\/p>\n\n\n\n

\u4f7f\u3044\u65b9\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058<\/p>\n\n\n\n

@page "\/"\n\n<PageTitle>Dynamic Component Test<\/PageTitle>\n<br\/>\n<p>\n    <DynamicComponent>\u306e\u30c6\u30b9\u30c8<br\/>\n    \u4e0b\u8a18\u304b\u3089\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u9078\u3093\u3067\u3001\u305d\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u8868\u793a\u3057\u307e\u3059\u3002\n<\/p>\n\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8:\n<select @onchange="OnDropDownChange">\n    <option value=""> <\/option>\n    <option value="@nameof(Counter)">Counter<\/option>\n    <option value="@nameof(FetchData)">Fetch Data<\/option>\n<\/select><br\/>\n<hr\/>\n<div class="ComponentBody">\n@if (ComponentType != null) {\n    <DynamicComponent Type="@ComponentType" Parameters="@Params" \/>\n}\n<\/div>\n@code {\n\n    protected Type? ComponentType = null;\n    protected IDictionary<string,object>? Params;\n\n    protected void OnDropDownChange(ChangeEventArgs e) {\n        if (e.Value?.ToString()?.Length != 0) {\n            ComponentType = Type.GetType($"BlDynamic.Pages.{e.Value}");\n            if (e.Value?.ToString() == nameof(Counter)) {\n                Params = new Dictionary<string,object>() { {"InitialCount",5} };\n            } else {\n                Params = null;\n            }\n        } else {\n            ComponentType = null;\n        }\n    }\n\n}<\/code><\/pre><\/div>\n\n\n\n
\u8868\u793a\u3059\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092select\u30bf\u30b0\u3067\u9078\u3093\u3067\u3001\u305d\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u8868\u793a\u3059\u308b\u7c21\u5358\u306a\u4f8b\u3068\u306a\u3063\u3066\u3044\u308b\u3002\u4f7f\u7528\u3057\u3066\u3044\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306fblazor\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3068\u3001\u81ea\u52d5\u7684\u306b\u751f\u6210\u3055\u308c\u308b\u3001Counter.razor\u3068FetchData.razor\u3002<\/p>\n\n\n\n
Counter\u306e\u65b9\u306b\u306fInitialCount\u3068\u8a00\u3046\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8ffd\u52a0\u3057\u3066\u3001\u3053\u306e\u547c\u51fa\u3057\u4f8b\u3067\u306f5\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u3002<\/p>\n\n\n\n
@page "\/counter"\n\n<PageTitle>Counter<\/PageTitle>\n\n<h1>Counter<\/h1>\n\n<p role="status">Current count: @currentCount<\/p>\n\n<button class="btn btn-primary" @onclick="IncrementCount">Click me<\/button>\n\n@code {\n    [Parameter]\n    public int InitialCount { get; set; } = 0;\n    private int currentCount = 0;\n\n    protected override void OnInitialized()\n    {\n        base.OnInitialized();\n        currentCount = InitialCount;\n    }\n    \n    private void IncrementCount()\n    {\n        currentCount++;\n    }\n}<\/code><\/pre><\/div>\n\n\n\n
\"\"
\u5b9f\u884c\u4f8b1<\/figcaption><\/figure>\n\n\n\n
\"\"
\u5b9f\u884c\u4f8b2<\/figcaption><\/figure>\n\n\n\n
\"\"
\u5b9f\u884c\u4f8b3<\/figcaption><\/figure>\n\n\n\n
\u3053\u306e\u3088\u3046\u306b\u3001\u52d5\u7684\u306b\u8868\u793a\u3059\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3002<\/p>\n\n\n\n
\u4f55\u304b\u306b\u4f7f\u3048\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u306e\u3067\u3001\u30e1\u30e2\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
.NET6\u304b\u3089\u3001blazor\u306e\u30bf\u30b0\u3068\u3057\u3066\u3001<DynamicComponen … \u7d9a\u304d\u3092\u8aad\u3080 →<\/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":[18,12,10,9,4],"tags":[],"class_list":["post-642","post","type-post","status-publish","format-standard","hentry","category-net","category-asp-net-core","category-blazor","category-c","category-4"],"_links":{"self":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/642","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=642"}],"version-history":[{"count":2,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/642\/revisions"}],"predecessor-version":[{"id":750,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/642\/revisions\/750"}],"wp:attachment":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}