摘要：Generally, we add a service reference(generate client activity in a workflow project) or generate proxy class then call it in a custom activity to call a WCF service from a workflow.If we try to call the service directly via message activity, we need to wrap the input and output of the service opera 阅读全文

摘要：Scenario:OP has alist of complied workflow types, which is created by using reflection to find all types. var assembly = Assembly.GetAssembly(this.GetType()); foreach (Type objType in assembly.GetTypes()) { if (objType.IsSubclassOf(typeof(Activity))) ... 阅读全文

摘要：If we wan't to manually control the worlflow instance, we can use the new contract called IWorkflowInstanceManagementintroduced in .Net Framework4.0. This contract defines a series of control operations that allow you remotely control workflow instances hosted by WorkflowServiceHost. WorkflowCon 阅读全文

摘要：Effective communications require quality content, language, format, and more. The entire point of communications is to disseminate information; this is where written content comes in. To present the appropriate content, it is imperative to understandaudience and writing purpose. If a document does n 阅读全文

摘要：EDI:Electronic Data InterchangeANSI x12(American National Standards Institute x12):the EDI standard used primarily in North America. Any EDI standard provides specifications for the layout of common business documents, such as Purchases Orders, Invoices, Advance Ship Notices, Medical Claim Forms, an 阅读全文

摘要：在WF中创建一个异步执行的activity，可以直接继承抽象类AsyncCodeActivity或者在NativeActivity使用bookmark实现。AsyncCodeActivity：protected override IAsyncResult BeginExecute(AsyncCodeActivityContext context, AsyncCallback callback, object state)protected override void EndExecute(AsyncCodeActivityContext context, IAsyncResult result 阅读全文