C# Attributes 强制属性

C# Attributes mandatory property(C# Attributes 强制属性)

问题描述

我已经创建了类似

    [AttributeUsage(AttributeTargets.Class, AllowMultiple = true)]
    [Serializable]
    public class TestPropertyAttribute : System.Attribute
    {
        public string Name
        {
            get { return _name; }
            set { _name = value; }
        }string _name;
    }

我应该将名称"标记为该属性的强制属性.怎么做?

and I should mark "Name" as mandatory property of this attribute. How to do it?

推荐答案

把它放在构造函数中，而不是仅仅作为一个单独的属性:

Put it in the constructor instead of just as a separate property:

[AttributeUsage(AttributeTargets.Class, AllowMultiple = true)]
[Serializable]
public class TestPropertyAttribute : System.Attribute
{
    readonly string _name;

    public TestPropertyAttribute(string name)
    {
        _name = name;
    }

    public string Name { get { return _name; } }
}

我不相信你可以强制并且在应用属性时使用 Name=... 语法.

I don't believe you can make it mandatory and use the Name=... syntax when applying the attribute though.

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