using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Reflection;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace Winfrom

{

    public partial class Form4 : Form

    {

        public Form4()

        {

            InitializeComponent();

        }

        private void Form4_Load(object sender, EventArgs e)

        {

            Assembly asm = Assembly.Load("Winfrom");

            var type = asm.GetType("Winfrom.Test");

            var instance = asm.CreateInstance("Winfrom.Test");

            type.GetProperty("Name").SetValue(instance, "hello world", null);

            type.GetProperty("Id").SetValue(instance, , null);

            var method = type.GetMethod("Hello");

            method.Invoke(instance, null);

        }

    }

    public class Test

    {

        private int id;

        private string name;

        public int Id

        {

            get { return this.id; }

            set { this.id = value; }

        }

        public string Name

        {

            get { return this.name; }

            set { this.name = value; }

        }

        public void Hello()

        {

            MessageBox.Show(Name);

        }

    }

}

 protected static List<Tuple<string, object, object>> AssembleyCache = new List<Tuple<string, object, object>>();

                        object myObj = null;

                        MethodInfo myMethod = null;

                        if (AssembleyCache.Exists(c => c.Item1 == labelMethod))

                        {

                            myObj = AssembleyCache.First(c => c.Item1 == labelMethod).Item2;

                            myMethod = (MethodInfo)AssembleyCache.First(c => c.Item1 == labelMethod).Item3;

                        }

                        else

                        {

                            Assembly assembly = Assembly.Load("Yanwen.Online.Common.Print");

                            Type type = assembly.GetType("Yanwen.Online.Common.Print.CreatPdfUtil");

                            myMethod = type.GetMethod(方法名称);

                            myObj = Activator.CreateInstance(type, null);

                            AssembleyCache.Add(new Tuple<string, object, object>(方法名称, myObj, myMethod));

                        }

                        if (myObj != null)

                        {

                            object[] parameter = { expressTypeModel };

                            var result = myMethod.Invoke(myObj, parameter);

                            stream = (MemoryStream)result;

                        }