在工作流内部调用宿主的静态方法终止工作流的执行
业务说明：张三，李四与王五三人审核一份稿件。如果张三审核通过则提交给李四审核，李四审核通过再提交给王五审核。三个人都通过，则稿件审核通过。如果任意一人不通过则工作流结束。
假设现在张三审核通过，李四审核不通过，然后结束了工作流
下面是工作流图：
工作流的内部方法：
public
sealed
partial
class
Workflow1: SequentialWorkflowActivity
{
public Workflow1()
{
InitializeComponent();
}
private void 张三审核_ExecuteCode( object sender, EventArgs e)
{
Console.WriteLine( " 张三通过 " );
}
private void 李四审核_ExecuteCode( object sender, EventArgs e)
{
Console.WriteLine( " 李四不通过 " );
// 调用宿主的静态方法终止工作流
Program.Stop();
}
private void 王五审核_ExecuteCode( object sender, EventArgs e)
{
Console.WriteLine( " 王五通过 " );
}
}
{
public Workflow1()
{
InitializeComponent();
}
private void 张三审核_ExecuteCode( object sender, EventArgs e)
{
Console.WriteLine( " 张三通过 " );
}
private void 李四审核_ExecuteCode( object sender, EventArgs e)
{
Console.WriteLine( " 李四不通过 " );
// 调用宿主的静态方法终止工作流
Program.Stop();
}
private void 王五审核_ExecuteCode( object sender, EventArgs e)
{
Console.WriteLine( " 王五通过 " );
}
}
宿主类：
class
Program
{
static WorkflowRuntime workflowRuntime;
static WorkflowInstance instance;
static AutoResetEvent waitHandle;
static void Main( string [] args)
{
workflowRuntime = new WorkflowRuntime();
waitHandle = new AutoResetEvent( false );
workflowRuntime.WorkflowCompleted += delegate ( object sender, WorkflowCompletedEventArgs e) { waitHandle.Set(); };
workflowRuntime.WorkflowTerminated += delegate ( object sender, WorkflowTerminatedEventArgs e)
{
Console.WriteLine(e.Exception.Message);
waitHandle.Set();
};
instance = workflowRuntime.CreateWorkflow( typeof (BreakWorkflow.Workflow1));
instance.Start();
waitHandle.WaitOne();
}
/// <summary>
/// 终止工作流的实例
/// </summary>
public static void Stop()
{
// 将阻止工作流的线程继续,否则在执行Terminate()方法时会产生异常
waitHandle.Set(); // 如果不执行该语句,在执行Terminate()方法时会产生异常
instance.Terminate( " 终止信息 " );
}
}
{
static WorkflowRuntime workflowRuntime;
static WorkflowInstance instance;
static AutoResetEvent waitHandle;
static void Main( string [] args)
{
workflowRuntime = new WorkflowRuntime();
waitHandle = new AutoResetEvent( false );
workflowRuntime.WorkflowCompleted += delegate ( object sender, WorkflowCompletedEventArgs e) { waitHandle.Set(); };
workflowRuntime.WorkflowTerminated += delegate ( object sender, WorkflowTerminatedEventArgs e)
{
Console.WriteLine(e.Exception.Message);
waitHandle.Set();
};
instance = workflowRuntime.CreateWorkflow( typeof (BreakWorkflow.Workflow1));
instance.Start();
waitHandle.WaitOne();
}
/// <summary>
/// 终止工作流的实例
/// </summary>
public static void Stop()
{
// 将阻止工作流的线程继续,否则在执行Terminate()方法时会产生异常
waitHandle.Set(); // 如果不执行该语句,在执行Terminate()方法时会产生异常
instance.Terminate( " 终止信息 " );
}
}
执行结果如下：