程序下载地址: https://files.cnblogs.com/TerryFeng/WF2.rar
建立一个空的解决方案,向其中加入一个顺序工作流类库和一个Asp.Net Web 应用程序项目,结果如下图
向asp.Net 程序中,添加引用,“WF”是工作流项目,如图
向Web.Config 中加入WF的注册(细节下载代码看一下)。
<section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> </sectionGroup> </sectionGroup> </sectionGroup> <!--WF注册服务--> <section name="WorkflowRuntime" type="System.Workflow.Runtime.Configuration.WorkflowRuntimeSection, System.Workflow.Runtime, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/> <!--技术WF注册服务--> </configSections> <!--WF注册服务--> <WorkflowRuntime Name="WorkflowServiceContainer"> <Services> <add type="System.Workflow.Runtime.Hosting.ManualWorkflowSchedulerService, System.Workflow.Runtime, Version=3.0.00000.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/> <add type="System.Workflow.Activities.ExternalDataExchangeService, System.Workflow.Activities, Version=3.0.00000.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/> </Services> </WorkflowRuntime> <!--结束注册服务--> <appSettings/> <connectionStrings/>
添加一个全局Global.asax 文件,添加如下代码
protected void Application_Start(object sender, EventArgs e) { WorkflowRuntime workflowRuntime = new WorkflowRuntime("WorkflowRuntime"); workflowRuntime.StartRuntime(); Application["WorkflowRuntime"] = workflowRuntime; } protected void Session_Start(object sender, EventArgs e) { WorkflowRuntime workflowRuntime = Application["WorkflowRuntime"] as WorkflowRuntime; workflowRuntime.StopRuntime(); }
向Default.aspx中添加3个控件,Textbox,button,label ,双击Button为其添加单击事件,并在default.aspx.cs 中添加如下代码
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Workflow.Runtime; using System.Workflow.Runtime.Hosting; using System.Workflow.ComponentModel; using System.Workflow.Activities; namespace AspNet { public partial class _Default : System.Web.UI.Page { string Result = string.Empty; protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { StartWorkflow(); Label1.Text = Result; } private void StartWorkflow() { WorkflowRuntime workflowRuntime = Application["WorkflowRuntime"] as WorkflowRuntime; ManualWorkflowSchedulerService scheduler = workflowRuntime.GetService(typeof(ManualWorkflowSchedulerService)) as ManualWorkflowSchedulerService; workflowRuntime.WorkflowCompleted += new EventHandler<WorkflowCompletedEventArgs>(workflowRuntime_WorkflowCompleted); Dictionary<String, Object> wfPara = new Dictionary<string, object>(); wfPara.Add("Name", TextBox1.Text); WorkflowInstance workflowInstance = workflowRuntime.CreateWorkflow(typeof(WF.Workflow1), wfPara); workflowInstance.Start(); scheduler.RunWorkflow(workflowInstance.InstanceId); } void workflowRuntime_WorkflowCompleted(object sender, WorkflowCompletedEventArgs e) { if (e.OutputParameters.ContainsKey("Result")) { Result = (string)e.OutputParameters["Result"]; } } } }
好了,下面,在WF项目中的Workflow1,拖入一个Code控件,如下图
为CodeActivety1.添加事件代码,方法名字可以自己取,也可以用默认的,我这里用了一个Exefun的方法名,
代码如下
namespace WF { public sealed partial class Workflow1 : SequentialWorkflowActivity { public string Name { get; set; } public string Result { get; set; } public Workflow1() { InitializeComponent(); } private void ExeFun(object sender, EventArgs e) { Result = "你好:" + Name; } } }
冯瑞涛