Reflection Objects ใช้ดึงข้อมูล Type ในขณะ Runtime คลาสต่างๆ อยู่ใน Namespace System.Reflection
Object MemberInfo ต้อง Initialize ก่อนเพื่อค้นหา Attributes ของ Class
System.Reflection.MemberInfo info = typeof(MyClass);
ตัวอย่าง
using System;
using System.Reflection;
[AttributeUsage(AttributeTargets.All)]
public class HelpAttribute : System.Attribute
{
public readonly string Url;
public string Topic { get { return topic; } set { topic = value; } }
public HelpAttribute(string url) { this.Url = url; }
private string topic;
}
[HelpAttribute("Information on the class MyClass")]
class MyClass { }
namespace AttributeAppl
{
class Program
{
static void Main(string[] args)
{
System.Reflection.MemberInfo info = typeof(MyClass);
object[] attributes = info.GetCustomAttributes(true);
for (int i = 0; i < attributes.Length; i++)
System.Console.WriteLine(attributes[i]);
Console.ReadKey();
}
}
}