Step-By-Step教學(24)：WF4- 錯誤處理

天長地久有時盡,此"當"綿綿無絕期...
試TryCatch大約當了10幾次....

1.建立一個Sequential Workflow Console Application
2.新增一個Arguments

3.加一個TryCatch

4.雙擊TryCatch,在Try區塊加入一個WriteLine

5.設WriteLine的Text屬性

6.拖曳Catch'1到Catches

7.選Exception類型

8.選NullReferenceException

9.拖曳WriteLine到Catches,設定:

10.加入程式至Program.cs

1 Dictionary<string, object> input =

2 new Dictionary<string, object>() { { "name", null } };

3 WorkflowInstance myInstance = new WorkflowInstance(new Sequence1(),input);

11.執行觸發Exception