本文介绍了C#重写的属性在子类中的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

public class MyWebControl {

    [ExternallyVisible]
    public string StyleString {get;set;}

}

public class SmarterWebControl : MyWebControl {

    [ExternallyVisible]
    public string CssName{get;set;}

    new public string StyleString {get;set;} //Doesn't work

}

是否可以删除子类中的属性?我想要做的属性的话,被其他子类继承,只是没有这一个。

Is it possible to remove the attribute in the subclass? I do want the attribute to get inherited by other subclasses, just not this one.

编辑:哎呦,看起来像我忘了编译或东西,因为如上面贴code呢,其实,工作

Whoops, looks like I forgot to compile or something because the code as posted above does, in fact, work!

推荐答案

这为我工作。

测试code:

public static void Main()
{
    var attribute = GetAttribute(typeof (MyWebControl), "StyleString", false);
    Debug.Assert(attribute != null);

    attribute = GetAttribute(typeof(SmarterWebControl), "StyleString", false);
    Debug.Assert(attribute == null);

    attribute = GetAttribute(typeof(SmarterWebControl), "StyleString", true);
    Debug.Assert(attribute == null);
}

private static ExternallyVisibleAttribute GetAttribute(Type type, string propertyName, bool inherit)
{
    PropertyInfo property = type.GetProperties().Where(p=>p.Name.Equals(propertyName, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();

    var list = property.GetCustomAttributes(typeof(ExternallyVisibleAttribute), inherit).Select(o => (ExternallyVisibleAttribute)o);

    return list.FirstOrDefault();
}

这篇关于C#重写的属性在子类中的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

10-26 16:20