如何在使用任务时使用上一个任务的结果继续使用另一个函数？

I have WCF connector that should get some small amount of data for me, usually it takes up to 20 seconds to get this data for each item ( which is fine ). I want to use Task to get data for me and then add WinForm controls with value from this Tasks.I have WCF connector that should get some small