CallExternalMethodActivity.InterfaceType 属性

public:
 virtual property Type ^ InterfaceType { Type ^ get(); void set(Type ^ value); };

[System.Workflow.ComponentModel.Design.TypeFilterProvider(typeof(System.Workflow.Activities.ExternalDataExchangeInterfaceTypeFilterProvider))]
public virtual Type InterfaceType { get; set; }

[<System.Workflow.ComponentModel.Design.TypeFilterProvider(typeof(System.Workflow.Activities.ExternalDataExchangeInterfaceTypeFilterProvider))>]
member this.InterfaceType : Type with get, set

Public Overridable Property InterfaceType As Type

属性值

外部方法的具有 ExternalDataExchangeAttribute 的声明接口。

属性

TypeFilterProviderAttribute

示例

下面的代码示例演示如何设置 InterfaceType 属性。 接口类型必须具有 ExternalDataExchangeAttribute 属性。 此代码示例摘自 PurchaseOrderWorkflow.Designer.cs 文件中的“侦听”SDK 示例。 有关详细信息，请参阅 侦听示例。

this.CreatePO.InterfaceType = typeof(IOrderService);
this.CreatePO.MethodName = "CreateOrder";
this.CreatePO.Name = "CreatePO";
this.CreatePO.MethodInvoking += new System.EventHandler(this.OnBeforeCreateOrder);

Me.CreatePO.InterfaceType = GetType(IOrderService)
Me.CreatePO.MethodName = "CreateOrder"
Me.CreatePO.Name = "CreatePO"
AddHandler Me.CreatePO.MethodInvoking, AddressOf Me.OnBeforeCreateOrder

适用于

另请参阅

• 使用 CallExternalMethod 活动