VS 2005 中基于Winform WWF Beta2 入门

<一>在解决方案中,建立顺序工作流库,在流程设计器中将code 拖入,并双打击
using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Collections;
using System.Drawing;
using System.Workflow.ComponentModel.Compiler;
using System.Workflow.ComponentModel.Serialization;
using System.Workflow.ComponentModel;
using System.Workflow.ComponentModel.Design;
using System.Workflow.Runtime;
using System.Workflow.Activities;
using System.Workflow.Activities.Rules;
//要添加引用哦
using System.Windows.Forms;

namespace WorkflowLibrary1
{
 public sealed partial class Workflow1: SequentialWorkflowActivity  //WWF Beta 2 继承的类库发生了变化
 {
     //在WWF Beta1 中,具有可视化设置code的Parameters;但在WWF Beta 2中已经取消了
      private  string firstName;

        public string FirstName
        {
            get { return firstName; }
            set { firstName = value; }
        }

        private   string lastName;

        public string LastName
        {
            get { return lastName; }
            set { lastName = value; }
        }
 public Workflow1()
  {
   InitializeComponent();
  }

        private void codeActivity1_ExecuteCode(object sender, EventArgs e)
        {
           
            MessageBox.Show("Welcome, " + firstName + " " + lastName);  // 工作流节点code执行部分
        }
      
 }

}

<二>解决方案中,项目WindowsApplication1 的Form1.CS

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;
//要在解决方案的项目中添加引用
using System.Workflow.Runtime;
using System.Workflow.ComponentModel;
using System.Workflow.Runtime.Hosting;
using System.Workflow.Activities;
using System.Workflow.Activities.Rules;

 namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        private WorkflowRuntime _wr = null;
        private string _workflowassembly = "";
        private string _workflowtypeName = "";
        //构造函数
        public Form1()
        {
            InitializeComponent();
            _workflowassembly = "WorkflowLibrary1";   //工作流项目所在的命名空间
            _workflowtypeName = "WorkflowLibrary1.Workflow1";   //类
            _wr = new WorkflowRuntime();  //实例化类WorkRuntime
            _wr.StartRuntime();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string assemblyname = _workflowassembly;
            string typename = _workflowtypeName;
            Assembly assembly = Assembly.Load(assemblyname);  //装载
            Type workflowtype = assembly.GetType(typename);     //取得类Workflow1

            Dictionary<string ,object> parameters = new Dictionary<string ,object>();
            parameters.Add("FirstName", this.txtFirstName.Text); //添加参数
            parameters.Add("LastName", this.txtLastName.Text);
            //注意在WWF Beta1中,是用方法StarWorkflow()
            WorkflowInstance instance = _wr.CreateWorkflow(typeof(WorkflowLibrary1.Workflow1), parameters);
            instance.Start(); //开启
     }
    }
}