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如何从WF4中的工作流调用方法?

workflow-foundation-4 c#

1

Ronald Wildenberg · 技术社区 · 14 年前

我想在工作流中调用一个简单的方法(没有参数,返回void)。假设我有以下课程:

public class TestClass
{
    public void StartWorkflow()
    {
        var workflow = new Sequence
        {
            Activities =
            {
                new WriteLine { Text = "Before calling method." },
                // Here I would like to call the method ReusableMethod().
                new WriteLine { Text = "After calling method." }
            }
        }
        new WorkflowApplication(workflow).Run();
    }

    public void ReusableMethod()
    {
        Console.WriteLine("Inside method.");
    }
}

我怎么称呼 ReusableMethod 从我的工作流程中?我在看 InvokeAction 但这似乎不是我想要的。我还可以编写一个调用此方法的自定义活动,但我对这个场景特别感兴趣。这有可能吗?

1 回复 | 直到 14 年前

1

5

Kevin Driedger 14 年前

怎么样 InvokeMethod ?

public class TestClass
{
    public void StartWorkflow()
    {
        var workflow = new Sequence
                        {
                            Activities =
                                {
                                    new WriteLine {Text = "Before calling method."},
                                    // Here I would like to call the method ReusableMethod().
                                    new InvokeMethod {MethodName="ReusableMethod", TargetType = typeof(TestClass)},
                                    new WriteLine {Text = "After calling method."}
                                }
                        };
        var wf = new WorkflowApplication(workflow);
        wf.Run();
        var are = new AutoResetEvent(false);
        wf.Completed = new Action<WorkflowApplicationCompletedEventArgs>(arg => are.Set());
        are.WaitOne(5000);
    }

    public static void ReusableMethod()
    {
        Console.WriteLine("Inside method.");
    }
}