工作流学习笔记-HelloWorld

C#->控制台工作流->顺序工作流->拖放code->生成事件处理程序

代码如下

using System;
using System.Workflow.Activities;

namespace wf1
{
    public sealed partial class Workflow1: SequentialWorkflowActivity
    {
        public Workflow1()
        {
            InitializeComponent();
        }

        private void codeActivity1_ExecuteCode(object sender, EventArgs e)
        {
            System.Threading.Thread.Sleep(6000);
            Console.WriteLine("hello world");
        }
    }

}

对program.cs内容修改如下

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Workflow.Runtime;
using System.Workflow.Runtime.Hosting;

namespace wf1
{
    class Program
    {
        static void Main(string[] args)
        {
            using(WorkflowRuntime workflowRuntime = new WorkflowRuntime())
            {
                AutoResetEvent waitHandle = new AutoResetEvent(false);
                //工作流完成时触发
                workflowRuntime.WorkflowCompleted += delegate(object sender, WorkflowCompletedEventArgs e) 
                {
                    //通知waitHandle，释放控制台应用程序
                    waitHandle.Set();
                };
                //工作流发生错误时触发
                workflowRuntime.WorkflowTerminated += delegate(object sender, WorkflowTerminatedEventArgs e)
                {
                    Console.WriteLine(e.Exception.Message);
                    waitHandle.Set();
                };
                //创建工作流的实例并启动工作流
                WorkflowInstance instance = workflowRuntime.CreateWorkflow(typeof(wf1.Workflow1));
                instance.Start();
                //让控制台等待工作流的完成
                waitHandle.WaitOne();               
            }
            Console.ReadKey();
        }
    }
}