WorkflowApplication 构造函数

参考

定义

命名空间:: System.Activities

程序集:: System.Activities.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

重载

WorkflowApplication(Activity)	使用指定的工作流定义创建 WorkflowApplication 类的新实例。
WorkflowApplication(Activity, WorkflowIdentity)	使用指定的工作流定义和定义标识创建 WorkflowApplication 类的新实例。
WorkflowApplication(Activity, IDictionary<String,Object>)	创建 WorkflowApplication 类的新实例，该实例使用指定的工作流定义和自变量值。
WorkflowApplication(Activity, IDictionary<String,Object>, WorkflowIdentity)	使用指定的工作流定义、参数值以及定义标识创建 WorkflowApplication 类的新实例。

WorkflowApplication(Activity)

使用指定的工作流定义创建 WorkflowApplication 类的新实例。

public:
 WorkflowApplication(System::Activities::Activity ^ workflowDefinition);

public WorkflowApplication (System.Activities.Activity workflowDefinition);

new System.Activities.WorkflowApplication : System.Activities.Activity -> System.Activities.WorkflowApplication

Public Sub New (workflowDefinition As Activity)

参数

workflowDefinition: Activity

工作流定义。

示例

下面的示例使用 WorkflowApplication 承载一个工作流。该示例使用包含单个 DiceRoll 活动的工作流定义构造一个 WorkflowApplication 实例。 DiceRoll 活动包含两个表示掷骰子操作结果的输出自变量。工作流完成时，将在 Completed 处理程序中检索输出，并向控制台显示以下输出。

Workflow aae3fb48-7229-4737-b969-d63e131b96b3 Completed.   
The two dice are 1 and 5.

public sealed class DiceRoll : CodeActivity
{
    public OutArgument<int> D1 { get; set; }
    public OutArgument<int> D2 { get; set; }

    static Random r = new Random();

    protected override void Execute(CodeActivityContext context)
    {
        D1.Set(context, r.Next(1, 7));
        D2.Set(context, r.Next(1, 7));
    }
}

 // Create a WorkflowApplication instance.
 WorkflowApplication wfApp = new WorkflowApplication(new DiceRoll());

 // Subscribe to any desired workflow lifecycle events.
 wfApp.Completed = delegate(WorkflowApplicationCompletedEventArgs e)
 {
     if (e.CompletionState == ActivityInstanceState.Faulted)
     {
         Console.WriteLine("Workflow {0} Terminated.", e.InstanceId);
         Console.WriteLine("Exception: {0}\n{1}",
             e.TerminationException.GetType().FullName,
             e.TerminationException.Message);
     }
     else if (e.CompletionState == ActivityInstanceState.Canceled)
     {
         Console.WriteLine("Workflow {0} Canceled.", e.InstanceId);
     }
     else
     {
         Console.WriteLine("Workflow {0} Completed.", e.InstanceId);

         // Outputs can be retrieved from the Outputs dictionary,
         // keyed by argument name.
         Console.WriteLine("The two dice are {0} and {1}.",
             e.Outputs["D1"], e.Outputs["D2"]);
     }
 };

// Run the workflow.
 wfApp.Run();

适用于

WorkflowApplication(Activity, WorkflowIdentity)

使用指定的工作流定义和定义标识创建 WorkflowApplication 类的新实例。

public:
 WorkflowApplication(System::Activities::Activity ^ workflowDefinition, System::Activities::WorkflowIdentity ^ definitionIdentity);

public WorkflowApplication (System.Activities.Activity workflowDefinition, System.Activities.WorkflowIdentity definitionIdentity);

new System.Activities.WorkflowApplication : System.Activities.Activity * System.Activities.WorkflowIdentity -> System.Activities.WorkflowApplication

Public Sub New (workflowDefinition As Activity, definitionIdentity As WorkflowIdentity)

参数

workflowDefinition: Activity

工作流定义。

definitionIdentity: WorkflowIdentity

定义标识。

适用于

WorkflowApplication(Activity, IDictionary<String,Object>)

创建 WorkflowApplication 类的新实例，该实例使用指定的工作流定义和自变量值。

public:
 WorkflowApplication(System::Activities::Activity ^ workflowDefinition, System::Collections::Generic::IDictionary<System::String ^, System::Object ^> ^ inputs);

public WorkflowApplication (System.Activities.Activity workflowDefinition, System.Collections.Generic.IDictionary<string,object> inputs);

new System.Activities.WorkflowApplication : System.Activities.Activity * System.Collections.Generic.IDictionary<string, obj> -> System.Activities.WorkflowApplication

Public Sub New (workflowDefinition As Activity, inputs As IDictionary(Of String, Object))

参数

workflowDefinition: Activity

工作流定义。

inputs: IDictionary<String,Object>

在工作流定义的根活动上定义的自变量的值，由自变量名称键控。

示例

下面的示例使用 WorkflowApplication 承载一个工作流。 WorkflowApplication使用工作流定义构造实例，该工作流定义包含采用两个输入参数的单个Divide活动，以及包含要传递的两个值的输入参数字典（按参数名称键控）。将处理所需的工作流生命周期事件，并通过调用 Run 来调用工作流。完成工作流时，会向控制台显示以下输出。

Workflow 8dc844c1-bbf8-4b21-a9a2-05f89e416055 Completed  
500 / 36 = 13 Remainder 32  
Workflow 8dc844c1-bbf8-4b21-a9a2-05f89e416055 Unloaded.

public sealed class Divide : CodeActivity
{
    [RequiredArgument]
    public InArgument<int> Dividend { get; set; }

    [RequiredArgument]
    public InArgument<int> Divisor { get; set; }

    public OutArgument<int> Remainder { get; set; }
    public OutArgument<int> Result { get; set; }

    protected override void Execute(CodeActivityContext context)
    {
        int quotient = Dividend.Get(context) / Divisor.Get(context);
        int remainder = Dividend.Get(context) % Divisor.Get(context);

        Result.Set(context, quotient);
        Remainder.Set(context, remainder);
    }
}

int dividend = 500;
int divisor = 36;

Dictionary<string, object> inputs = new Dictionary<string, object>();
inputs.Add("Dividend", dividend);
inputs.Add("Divisor", divisor);

// Create a WorkflowApplication instance.
WorkflowApplication wfApp = new WorkflowApplication(new Divide(), inputs);

// Subscribe to any desired workflow lifecycle events.
wfApp.Completed = delegate(WorkflowApplicationCompletedEventArgs e)
{
    if (e.CompletionState == ActivityInstanceState.Faulted)
    {
        Console.WriteLine("Workflow {0} Terminated.", e.InstanceId);
        Console.WriteLine("Exception: {0}\n{1}",
            e.TerminationException.GetType().FullName,
            e.TerminationException.Message);
    }
    else if (e.CompletionState == ActivityInstanceState.Canceled)
    {
        Console.WriteLine("Workflow {0} Canceled.", e.InstanceId);
    }
    else
    {
        Console.WriteLine("Workflow {0} Completed.", e.InstanceId);

        // Outputs can be retrieved from the Outputs dictionary,
        // keyed by argument name.
        Console.WriteLine("{0} / {1} = {2} Remainder {3}",
            dividend, divisor, e.Outputs["Result"], e.Outputs["Remainder"]);
    }
};

// Run the workflow.
wfApp.Run();

适用于

WorkflowApplication(Activity, IDictionary<String,Object>, WorkflowIdentity)

使用指定的工作流定义、参数值以及定义标识创建 WorkflowApplication 类的新实例。

public:
 WorkflowApplication(System::Activities::Activity ^ workflowDefinition, System::Collections::Generic::IDictionary<System::String ^, System::Object ^> ^ inputs, System::Activities::WorkflowIdentity ^ definitionIdentity);

public WorkflowApplication (System.Activities.Activity workflowDefinition, System.Collections.Generic.IDictionary<string,object> inputs, System.Activities.WorkflowIdentity definitionIdentity);

new System.Activities.WorkflowApplication : System.Activities.Activity * System.Collections.Generic.IDictionary<string, obj> * System.Activities.WorkflowIdentity -> System.Activities.WorkflowApplication

Public Sub New (workflowDefinition As Activity, inputs As IDictionary(Of String, Object), definitionIdentity As WorkflowIdentity)

参数

workflowDefinition: Activity

工作流定义。

inputs: IDictionary<String,Object>

定义标识。

definitionIdentity: WorkflowIdentity

在工作流定义的根活动上定义的自变量的值，由自变量名称键控。

适用于

通过

WorkflowApplication 构造函数

定义

重载

WorkflowApplication(Activity)

参数

示例

适用于

WorkflowApplication(Activity, WorkflowIdentity)

参数

适用于

WorkflowApplication(Activity, IDictionary<String,Object>)

参数

示例

适用于

WorkflowApplication(Activity, IDictionary<String,Object>, WorkflowIdentity)

参数

适用于

其他资源