如何得到类上的自定义属性啊？

Question

[MyObject(IsNumber = true)]
public class A
{
}

MyObject是继承Attribute的自定义属性

我想在别的地方通过放射得到IsNumber = true这个值"true"，请问通过放射如何得到啊？

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Answer 1

    [global::System.AttributeUsage(AttributeTargets.All, Inherited = true, AllowMultiple = true)]
    public class MyObject : Attribute
    {
        bool isNumber;

        public MyObject(bool isNumber)
        {
            this.isNumber = isNumber;
        }

        public bool IsNumber
        {
            get { return isNumber; }
        }
    }

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Answer 2

A a = new A(); Type type = a.GetType(); value = (type.GetCustomAttributes(typeof(IsNumber), false)

参考地址
http://msdn.microsoft.com/zh-cn/library/4x2fs7yd(VS.80).aspx

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Answer 3

我找到了

Type type = typeof(T);

object[] os = type.GetCustomAttributes(false);

foreach (object o in os)
{
    //o就是类上面的自定义的类型了
}

原来就是用type.GetCustomAttributes(false);就行了，很简单

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