回答編集履歴
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FastMemberの説明を追記
test
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@@ -12,6 +12,8 @@
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// とりあえず既成の外部クラスを使います。nuget からFastMemberを探して使ってみてください。
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// FastMemberはクラスのアクセサ/ゲッタを生成してキャッシュしてくれるライブラリです。
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IEnumerable<string> AsEnumerable()
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{
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オマケを追加
test
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@@ -147,3 +147,249 @@
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}
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```
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---
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追記
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オマケ。コピペで使える全文です。
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リフレクション
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```C#
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using FastMember;
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using System;
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using System.Collections.Generic;
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class Program
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{
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static void Main(string[] args)
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{
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var sample = new ReflectionSample();
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foreach (var str in sample.AsEnumerable())
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{
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Console.WriteLine(str);
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}
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Console.ReadKey();
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}
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}
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public class ReflectionSample
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{
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public string a1 = "AAA";
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public string a2 = "BBB";
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public string a3 = "CCC";
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}
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public static class ReflectionSampleExtension
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{
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public static IEnumerable<string> AsEnumerable(this ReflectionSample obj)
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{
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var accessor = TypeAccessor.Create(typeof(ReflectionSample));
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for (int i = 1; i < 3; ++i)
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{
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yield return (string)accessor[obj, $"a{i}"];
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}
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}
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}
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```
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直書き
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```C#
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using System;
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using System.Collections.Generic;
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class Program
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{
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static void Main(string[] args)
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{
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var sample = new Sample();
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foreach (var str in sample.AsEnumerable愚直1())
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{
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Console.WriteLine(str);
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}
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foreach (var str in sample.AsEnumerable愚直2())
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{
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Console.WriteLine(str);
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}
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Console.ReadKey();
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}
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}
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public class Sample
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{
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public string a1 = "AAA";
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public string a2 = "BBB";
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public string a3 = "CCC";
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// 愚直1
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public IEnumerable<string> AsEnumerable愚直1()
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{
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yield return a1;
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yield return a2;
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yield return a3;
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}
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public string this[int index]
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{
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get
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{
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switch (index)
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{
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case 0: return a1;
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case 1: return a2;
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case 2: return a3;
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// ....
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// case 98: return a99;
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default:
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throw new IndexOutOfRangeException();
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}
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}
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set
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{
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switch (index)
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{
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case 0: a1 = value; break;
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case 1: a2 = value; break;
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case 2: a3 = value; break;
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// ....
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// case 98: a99 = value; break;
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default:
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throw new IndexOutOfRangeException();
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}
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}
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}
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public IEnumerable<string> AsEnumerable愚直2()
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{
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for (int i = 0; i < 3; ++i)
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{
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yield return this[i];
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}
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}
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392
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}
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394
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395
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```
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