C#反射(Reflection)对类的属性get或set值

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近段时间,有朋友叫Insus.NET了解一下反射(Reflection)方面的知识,反射提供了封装程序集、模块和类型的对象(Type类型)。可以使用反射动态创建类型的实例,将类型绑定到现有对象,或从现有对象获取类型并调用其方法或访问其字段和属性。如果代码中使用了属性,可以利用反射对它们进行访问。

下面的例子,是Insus.NET是练习对一个类别的属性进行set和get值。

首先写一个类,再写一个可读写的属性:

View Code
using System;using System.Collections.Generic;using System.Linq;using System.Web;/// <summary>/// Summary description for Member/// </summary>namespace Insus.NET{    public class Member    {        private string _Name;        public string Name        {            get            {                return _Name;            }            set            {                _Name = value;            }                }        public Member()        {            //            // TODO: Add constructor logic here            //        }    }}


Insus.NET一向是写asp.net程序,练习也是在站点进行。

创建一个网页,引用两个namespace:

View Code
using Insus.NET;using System.Reflection;


读写属性:

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using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using Insus.NET;using System.Reflection;public partial class _Default : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {       //实例化类        Member objMember = new Member();        //对属性set值        PropertyInfo pi = objMember.GetType().GetProperty("Name", BindingFlags.Public | BindingFlags.Instance);        if (null != pi && pi.CanWrite)        {            pi.SetValue(objMember, "Insus.NET", null);        }        //对属性get值        PropertyInfo pii = objMember.GetType().GetProperty("Name", BindingFlags.Public | BindingFlags.Instance);        if (null != pii && pi.CanRead)        {            object obj_Name = pii.GetValue(objMember, null);            Response.Write(obj_Name.ToString());        }    }}

 


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