我如何确定，如果财产被重写？ [英] How do I determine if a property was overriden?

问题描述

您好我在做一个项目，我需要注册系统，因为所有属性，如此巨大的它需要大量的工作来注册的一切，我希望依赖于XAML中的目的性。

Hello I am doing a project that where I need to register all the properties, because of the system being so huge it would require a lot of work to register all the properties that i want to be dependent for the purpose of Xaml.

的目标是找到所有都在树的顶部属性

The goal is to find all properties that are on the top of the tree.

所以基本上

public class A{
    public int Property1 { get; set; }
}

public class B : A{
    public int Property2 { get; set; }
    public virtual int Property3 { get; set; }
}

public class C : B{
    public override int Property3 { get; set; }
    public int Property4 { get; set; }
    public int Property5 { get; set; }
}

最终的结果会是这样

The end result would be something like this

A.Prorperty1  
B.Property2  
B.Property3  
C.Property4  
C.Property5  

如果你注意到我不想接受，因为我搜索的属性的方式重写的属性，如果我做这样的事情

If you notice I don't want to accept overridden properties because of the way I search for the properties if I do something like this

C.Property3例如，它不能找到它，它会检查C'S基本类型有它会找到它。

C.Property3 for example and it cannot find it it will check C's basetype and there it will find it.

这是我到目前为止所。

public static void RegisterType( Type type )
{
    PropertyInfo[] properties = type.GetProperties( BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.GetProperty | BindingFlags.SetProperty );

    if ( properties != null && properties.Length > 0 )
    {
        foreach ( PropertyInfo property in properties )
        {
            // if the property is an indexers then we ignore them
            if ( property.Name == "Item" && property.GetIndexParameters().Length > 0 )
                continue;

            // We don't want Arrays or Generic Property Types
            if ( (property.PropertyType.IsArray || property.PropertyType.IsGenericType) )
                continue;

            // Register Property
        }
    }
}

我想主要有以下内容：

What I want are the following:

• 在公共属性，是的不可以覆盖，不可以静态的不可以私人
• 无论是获取和设置属性允许
• 在他们的不可以数组或一个泛型类型
• 他们在例子中，树即C级的顶端是最高的（属性列表的例子正是我期待的）
• 在他们的不可以一个索引属性（这[指数]）

• Public properties, that are not overridden, not static, not private
• Either get and set properties are allowed
• They are not an array or a generic type
• They are the top of the tree ie C class in the example is the highest (The property list example is exactly what I am looking for)
• They are not an indexer property ( this[index] )

任何帮助将大大AP preciated =）。

Any help will be much appreciated =).

推荐答案

为了忽略继承的成员，您可以使用BindingFlags.DeclaredOnly标志，你已经做的事情。

In order to ignore inherited members, you can use the BindingFlags.DeclaredOnly flag, which you're already doing.

但是，当属性覆盖，它们是由派生类中重新声明。诀窍是再看看自己的访问方法，以确定他们是否实际上覆盖。

But when properties are overridden, they are re-declared by the derived class. The trick is to then look at their accessor methods to determine if they are in fact overridden.

Type type = typeof(Foo);

foreach ( var property in type.GetProperties(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly)) {
    var getMethod = property.GetGetMethod(false);
    if (getMethod.GetBaseDefinition() == getMethod) {
        Console.WriteLine(getMethod);
    }
}

如果该属性被覆盖，其吸的MethodInfo将从 GetBaseDefinition 返回不同的MethodInfo。

If the property is overridden, its 'getter' MethodInfo will return a different MethodInfo from GetBaseDefinition.

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