コードをはってみる

いい感じですね。

1	class Program
2	{
3	static void Main(string[] args)
4	{
5	Console.WriteLine(ToType<Decimal>("10.2", 0m));
6	Console.WriteLine(ToType<Boolean>("true", false));
7	Console.WriteLine(ToType<Point>("10,2", new Point(0,0)));
8	Console.WriteLine(ToType<Member>("Cat", Member.Animal));
9	Console.WriteLine(ToType<Member>("Error", Member.Animal));
10	}
11
12	static public T ToType<T>(object value, T defaultValue)
13	{
14	if (value == null) return defaultValue;
15	var s = value.ToString();
16	if (string.IsNullOrEmpty(s)) return defaultValue;
17
18	var c = TypeDescriptor.GetConverter(typeof(T));
19	try {
20	return (T)c.ConvertFromString(s);
21	}
22	catch {
23	return defaultValue;
24	}
25	}
26	}
27	enum Member
28	{
29	Dog, Cat, Animal
30	}
31

えムナウ@わんくま同盟 Microsoft MVP Visual Studio C# Since 2005/01-2009/12

Friday, January 23, 2009 12:21 PM

1	public class Greeter
2	{
3	public void Greet()
4	{
5	Console.WriteLine("Hello world");
6	}
7	}