C＃中使用反射来复制基类的属性 [英] C# Using Reflection to copy base class properties

问题描述

我想更新从MyObject的所有属性到另一个使用反思。我进入的问题是，特定的对象是从基类继承，并且不更新这些基类的属性值。

I would like to update all properties from MyObject to another using Reflection. The problem I am coming into is that the particular object is inherited from a base class and those base class property values are not updated.

下面code将在顶层的属性值。

The below code copies over top level property values.

public void Update(MyObject o)
{
    MyObject copyObject = ...

    FieldInfo[] myObjectFields = o.GetType().GetFields(
    BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);

    foreach (FieldInfo fi in myObjectFields)
    {
        fi.SetValue(copyObject, fi.GetValue(o));
    }
}

我一直在寻找，看看是否有任何更多的BindingFlags属性，我可以用它来帮助，但无济于事。

I was looking to see if there were any more BindingFlags attributes I could use to help but to no avail.

推荐答案

试试这个：

    public void Update(MyObject o)
    {
        MyObject copyObject = ...
        Type type = o.GetType();
        while (type != null)
        {
            UpdateForType(type, o, copyObject);
            type = type.BaseType;
        }
    }


    private static void UpdateForType(Type type, MyObject source, MyObject destination)
    {
        FieldInfo[] myObjectFields = type.GetFields(
            BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);

        foreach (FieldInfo fi in myObjectFields)
        {
            fi.SetValue(destination, fi.GetValue(source));
        }
    }

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