{"version":"1.0","height":"190","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/potisan/","categories":["C#","Windows"],"type":"rich","provider_url":"https://hatena.blog","blog_title":"potisan\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30e1\u30e2","author_name":"potisan","blog_url":"https://potisan-programming-memo.hatenablog.jp/","title":"C#&WinForms \u30c9\u30ed\u30c3\u30d7\u3055\u308c\u305f\u5358\u4e00\u30d5\u30a1\u30a4\u30eb\u3092\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3067\u53d7\u3051\u53d6\u308b","url":"https://potisan-programming-memo.hatenablog.jp/entry/2026/07/30/220821","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fpotisan-programming-memo.hatenablog.jp%2Fentry%2F2026%2F07%2F30%2F220821\" title=\"C#&amp;WinForms \u30c9\u30ed\u30c3\u30d7\u3055\u308c\u305f\u5358\u4e00\u30d5\u30a1\u30a4\u30eb\u3092\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3067\u53d7\u3051\u53d6\u308b - potisan\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"published":"2026-07-30 22:08:21","description":"C#\u306b\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u304c\u5c0e\u5165\u3055\u308c\u3066\u65e5\u672c\u8a9e\u3067\u3082\u5206\u304b\u308a\u3084\u3059\u3044\u89e3\u8aac\u30da\u30fc\u30b8\u304c\u591a\u3005\u3042\u308b\u306e\u3067\u3059\u304c\u3001\u914d\u5217\u3067\u4f7f\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002.NET 10 (C#14)\u3067\u4f7f\u3063\u3066\u307f\u305f\u3089\u53ef\u8aad\u6027\u3068\u610f\u5916\u306a\u5236\u7d04\u306e\u591a\u3055\u306b\u9a5a\u3044\u305f\u306e\u3067\u3001\u4f7f\u3048\u305f\u30b3\u30fc\u30c9\u3092\u30e1\u30e2\u3057\u307e\u3059\u3002 private void Form1_DragDrop(object sender, DragEventArgs e) { if (!(e.Data?.GetData(DataFormats.FileDrop) is string[] and [string path] && Directory.Exists(path))) return; SetDirectory\u2026","width":"100%"}