1. 程式人生 > >C#類反射,執行時建立類物件,讀取設定屬性值列子。

C#類反射,執行時建立類物件,讀取設定屬性值列子。

using System;
using System.Reflection;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    //View
    class Program
    {
        static void Main(string[] args)
        {
            StudentBll<Student> studentBll = new StudentBll<Student>();
            Student model = studentBll.GetModelByID(1);

            Console.WriteLine(model.Key + " " + model.Name + "    " + model.Age);
           Console.WriteLine("請按下鍵盤任意鍵退出!");
           Console.ReadKey();
        }
    }
    //model
    public class Student
    {
        public int Key { get; set; }
        public string Name { get; set; }
        public int Age { get; set; }
    }
    //control
    public class StudentBll<T> where T:class,new()
    {
        public T GetModelByID(int ID)
        {
            T model=null;
            model = Activator.CreateInstance(typeof(T), true) as T;//根據型別建立例項
            PropertyInfo[] _PropertyInfo = model.GetType().GetProperties();//讀取屬性集合
            foreach(PropertyInfo p in _PropertyInfo)//迴圈賦值
            {
                if (p.Name == "Name")
                    p.SetValue(model, "kelly");
                else if (p.Name == "Age")
                    p.SetValue(model, 15);
                else if (p.Name == "Key")
                    p.SetValue(model, ID);
            }
            return model;
        }
    }
}