c# 利用反射获取属性名和值

Question

class A
{
 public string Property1{get;set;}
 public int Property2{get;set;}
}class B
{
 public string Property1{get;set;}
 public A Property2{get;set;}
}请问如何通过反射获取class B 的Property2属性（也就是class A）的 属性名和值？

Answer 1

            Assembly assembly = Assembly.LoadFrom(filename);
            Type t = assembly.GetType("B");
            Object obj = t.InvokeMember(
            null,
            BindingFlags.DeclaredOnly |
            BindingFlags.Public | BindingFlags.NonPublic |
            BindingFlags.Instance | BindingFlags.CreateInstance,
            null,
            null,
            null);            string strReturn = (string)t.InvokeMember("Property2",
            BindingFlags.DeclaredOnly |
            BindingFlags.Public | BindingFlags.NonPublic |
            BindingFlags.Instance | BindingFlags.GetProperty,
            null,
            obj,
            null);
strReturn 就是你所要取得属性值。

Answer 2

B b = new B();            Type t = b.GetType().GetProperty("Property2").GetValue(b, null).GetType();
           
            foreach (PropertyInfo info in b.GetType().GetProperty("Property2").GetValue(b, null).GetType().GetProperties()) 
            {
                MessageBox.Show(string.Format("{0}={1}",info.Name,info.GetValue(b.Property2,null)));
            }

Answer 3

Type type = typeof(B);
B b = new B();
PropertyInfo pi = type.GetProperty("Property2");
A a = (A)pi.GetValue(b, null);
..............

Answer 4

@mooddecode 
我没说清楚么？比如 
   A a = new A();
   a.Property1 = "property1OfA";
   a.Property2 = 1;
  B b = new B();
  b.Property1 = "property1OfB";
  b.Proerty2 = a;
现在我想通过反射把对象b和a 的属性名和值打印出来
不知道我说明白没

Answer 5

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Reflection;
namespace WindowsApplication26
{
    public partial class Form1 : Form
    {        class A
        {
            public string Property1 { get { return "Property1"; } }
            public int Property2 { get { return 1; } }
        }        class B
        {
            private A property2=new A();
            public string Property1 { get { return "Property1"; } }
            public A Property2 { get { return property2; } }
        } 
        public Form1()
        {
            InitializeComponent();
        }        private void Form1_Load(object sender, EventArgs e)
        {            B b = new B();           
            foreach (PropertyInfo info in b.GetType().GetProperty("Property2").GetValue(b, null).GetType().GetProperties()) 
            {
                MessageBox.Show(string.Format("{0}={1}",info.Name,info.GetValue(b.Property2,null)));
            }
                    }
    }
}

Answer 6

 //print public properties 
        public void PrintProperties<T>(T t)
        {
            if (t == null)
            {
                return;
            }            PropertyInfo[] properties = t.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);
            if (properties.Length <= 0)
            {
                return;
            }            foreach (PropertyInfo item in properties)
            {
                if (item.PropertyType.IsValueType || item.PropertyType.Name.StartsWith("String"))
                {
                    Console.WriteLine("{0}:{1}", item.Name, item.GetValue(obj, null));
                }
                else
                {
                    //我不知道怎样写了
                }
            }
大家在帮看看吧

Answer 7

各位达人再帮see see 啊！

Answer 8

递归一下public void PrintProperties<T>(T t)
        {
            if (t == null)
            {
                return;
            }            PropertyInfo[] properties = t.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);
            if (properties.Length <= 0)
            {
                return;
            }            foreach (PropertyInfo item in properties)
            {
                string name = item.Name;
                object value = item.GetValue(t, null);
                if (item.PropertyType.IsValueType || item.PropertyType.Name.StartsWith("String"))
                {
                    Console.WriteLine("{0}:{1}", name,value);
                }
                else
                {
                    foreach (PropertyInfo itemsub in value.GetType().GetProperties())
                    {                        PrintProperties(value);
                    }
                }
            }
        }

Answer 9

sorry，写错了 public void PrintProperties<T>(T t)
        {
            if (t == null)
            {
                return;
            }            PropertyInfo[] properties = t.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);
            if (properties.Length <= 0)
            {
                return;
            }            foreach (PropertyInfo item in properties)
            {
                string name = item.Name;
                object value = item.GetValue(t, null);
                if (item.PropertyType.IsValueType || item.PropertyType.Name.StartsWith("String"))
                {
                    Console.WriteLine("{0}:{1}", name,value);
                }
                else
                {                        PrintProperties(value);
                }
            }
        }