通过字符串获取字段值 [英] Get value of field by string

问题描述

我想通过使用字符串作为变量名来获取对象字段的值.我试图通过反射来做到这一点:

I want to get the value of a field of an object by using a string as variable name. I tried to do this with reflection:

myobject.GetType().GetProperty("Propertyname").GetValue(myobject, null);

这很完美，但现在我想获得子属性"的值:

This works perfectly but now I want to get the value of "sub-properties":

public class TestClass1
{
    public string Name { get; set; }
    public TestClass2 SubProperty = new TestClass2();
}

public class TestClass2
{
    public string Address { get; set; }
}

这里我想从 TestClass1 的对象中获取值 Address.

Here I want to get the value Address from a object of TestClass1.

推荐答案

你已经做了你需要做的一切，你只需要做两次:

You already did everything you need to do, you just have to do it twice:

TestClass1 myobject = ...;
// get SubProperty from TestClass1
TestClass2 subproperty = (TestClass2) myobject.GetType()
    .GetProperty("SubProperty")
    .GetValue(myobject, null);
// get Address from TestClass2
string address = (string) subproperty.GetType()
    .GetProperty("Address")
    .GetValue(subproperty, null);

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