工作流程应用输出

发布于 2024-11-18 23:41:14 字数 283 浏览 3 评论 0原文

为了从 Workflowinvoker 获取输出，我们必须使用

          var output = WorkflowInvoker.Invoke(new Activity1() { str = night  });
          HttpContext.Current.Response.Write(output["res"]);

WorkflowApplication 命令，但我们必须使用什么？我尝试了与 Workflowinvoker 相同的方法，但它不起作用。

原文

In order to get output from Workflowinvoker we have to use

          var output = WorkflowInvoker.Invoke(new Activity1() { str = night  });
          HttpContext.Current.Response.Write(output["res"]);

but what do we have to use for the WorkflowApplication command? I tried the same as Workflowinvoker but it doesnt works.

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久夏青 2024-11-25 23:41:14

您需要设置 Completed 回调。 WorkflowApplication 异步执行工作流，而 WorkflowInvoker 会阻塞直至完成。

var flag = new ManualResetEvent(); 
var app = new WorkflowApplication(activity);
Dictionary<string,object> results = null;
app.Completed = x =>
{
    results = x.Outputs;
    flag.Set();
};
app.Run();
// run the application, wait for it to complete
flag.WaitOne(Timeout.Infinite);
// Completed has executed at this point

You need to set the Completed callback. The WorkflowApplication executes the workflow asynchronously, whereas the WorkflowInvoker blocks until it completes.

var flag = new ManualResetEvent(); 
var app = new WorkflowApplication(activity);
Dictionary<string,object> results = null;
app.Completed = x =>
{
    results = x.Outputs;
    flag.Set();
};
app.Run();
// run the application, wait for it to complete
flag.WaitOne(Timeout.Infinite);
// Completed has executed at this point

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