《WF in 24 Hours》读书笔记 - Hour 2(2) - Workflow：创建分支和传递参数
1. 修改workflow1.xaml，添加Flowchart，添加Flowdesicion，添加CodeActivity2，并且名字改为下图所示：
2. CodeActivity1和2的代码如下：
1 public sealed class CodeActivity1 : CodeActivity 2 { 3 // Define an activity input argument of type string 4 public InArgument<string> Text { get; set; } 5 6 // If your activity returns a value, derive from CodeActivity<TResult> 7 // and return the value from the Execute method. 8 protected override void Execute(CodeActivityContext context) 9 { 10 Console.WriteLine("executed in the left branch"); 11 } 12 } 13 14 public sealed class CodeActivity2 : CodeActivity 15 { 16 // Define an activity input argument of type string 17 public InArgument<string> Text { get; set; } 18 19 // If your activity returns a value, derive from CodeActivity<TResult> 20 // and return the value from the Execute method. 21 protected override void Execute(CodeActivityContext context) 22 { 23 Console.WriteLine("executed in the right branch"); 24 } 25 }
3. 修改program.cs
1 static void Main(string[] args) 2 { 3 // Add the parameters via a dictionary object 4 Dictionary<string, object> parameters = new Dictionary<string, object>(); 5 parameters.Add("Amount", 1200); 6 7 Activity workflow1 = new Workflow1(); 8 WorkflowInvoker.Invoke(workflow1, parameters); 9 10 // Pause the display 11 Console.WriteLine("Press enter to continue."); 12 Console.Read(); 13 }
4. 打开Workflow1.xaml文件，设置Flowdecision的condition为Amount < 1000
5. 还是在workflow1.xaml中添加Argument
6. 运行。结果如下：
7. 修改program.cs的Amount为900，运行。结果如下：
