1，使用反映将一个对象的同名属性赋值给另一个对象

2, DataTable 转换成一个实体

3，使用反射动态执行方法

4,根据属性信息来执行对应的方法

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Reflection;
using System.Windows.Forms;namespace WindowsFormsApp2
{public partial class FrmReflection : Form{public FrmReflection(){InitializeComponent();}private void FrmReflection_Load(object sender, EventArgs e){//反射的使用场景//1，使用反映将一个对象的同名属性赋值给另一个对象PA pA = new PA();pA.ID = 3;pA.Name = "PAName1";pA.Remark = "PARemark";PB pB = ToPageInfo<PB>(pA);MessageBox.Show(pB.Name);//2,DataTable 转换成一个实体DataTable dt = new DataTable();dt.Columns.Add("ID", typeof(int) );dt.Columns.Add("Name", typeof(string));dt.Columns.Add("Remark", typeof(string));DataRow dr = dt.NewRow();dr["ID"] = 1;dr["Name"] = "PaName2";dt.Rows.Add(dr);List<PA> pAs = GetValue<PA>(dt);MessageBox.Show(pAs[0].Name);//3，使用反射动态执行方法Assembly assembly = Assembly.GetExecutingAssembly();Type[] t = assembly.GetTypes(); //通过Assembly获取程序集中所有的类：//Assembly assembly1 = Assembly.LoadFrom("QRCoder.dll");//通过DLL文件全名反射其中的所有类型Type[] t1 = assembly.GetTypes(); //通过Assembly获取程序指定dll集中所有的类：/Assembly ass = Assembly.Load("WindowsFormsApp2");//通过程序集的名称反射Type t2 = ass.GetType("WindowsFormsApp2.FrmReflection");//命名空间+类object o = Activator.CreateInstance(t2, null, null);//实例一个对象MethodInfo mi = t2.GetMethod("Show1");//获取方法mi.Invoke(o, null);//执行方法//4,根据属性信息来执行对应的方法Type t3 = ass.GetType("WindowsFormsApp2.IsPrint");//命名空间+类var attribute = Attribute.GetCustomAttribute(t3, typeof(BarcodeTagAttrib)) as BarcodeTagAttrib;if (attribute.BarcodeTpName == "IsPrint"){//var instance = Activator.CreateInstance(t2) as CtrlPlanITag;MethodInfo mi3 = t3.GetMethod("show2");//获取方法//instance.show2();//执行方法object o1 = Activator.CreateInstance(t3, null, null);//实例一个对象mi3.Invoke(o1, null);//执行方法}}public T ToPageInfo<T>(object model) where T : new(){T t = new T();PropertyInfo property = null;foreach (var item in typeof(T).GetProperties()){property = model.GetType().GetProperty(item.Name);if (property != null){item.SetValue(t, property.GetValue(model, null), null);}}return t;}public List<T> GetValue<T>(DataTable dt) where T : new(){List<T> list = new List<T>();Type type = typeof(T);for (int i = 0; i < dt.Rows.Count; i++){T t = new T();for (int j = 0; j < dt.Columns.Count; j++){PropertyInfo pro = type.GetProperty(dt.Columns[j].ColumnName);if (pro != null){if (dt.Rows[i][j] != DBNull.Value){pro.SetValue(t, dt.Rows[i][j], null);}}}list.Add(t);}return list;}public void Show1() {MessageBox.Show("Show1");}}public class PA{public int ID { get; set; }public string Name { get; set; }public string Description { get; set; }public string Remark { get; set; }}public class PB{public int ID { get; set; }public string Name { get; set; }public string DeviceType { get; set; }public string DeviceName { get; set; }public string Remark { get; set; }}public class BarcodeTagAttrib : Attribute{public string BarcodeTpName { get; set; }}public interface CtrlPlanITag{void show2();}[BarcodeTagAttrib(BarcodeTpName = "IsNeedEnd")]public class IsNeedEnd : CtrlPlanITag{public void show2(){MessageBox.Show("IsNeedEndShow");}}[BarcodeTagAttrib(BarcodeTpName = "IsPrint")]public class IsPrint : CtrlPlanITag{public void show2(){MessageBox.Show("IsPrintShow");}}
}