We have developed a workflow application similar to the order workflow sample
we get this error
"Event \"RequestApproved\" on interface type \"RequestLocalServices.IRequestService\" for instance id \"8ce3ae0f-a8f5-4c15-826d-59dfbadf2515\" cannot be delivered."
Can any one plz help
Thanks Tom for such a quick reply
We have been using Beta2.
hosting the state machine workflow with a web application
Could you please give the location and line of code to be put in the code?
Pasting my code here
using
using
System.Collections.Generic;using
System.Text;namespace
RequestLocalServices{
[
Serializable]public class RequestService : IRequestService{
public RequestService(){
}
public void RaiseRequestCreatedEvent(string RequestId, Guid instanceId){
if (RequestCreated != null)RequestCreated(
null, new RequestEventArgs(instanceId, RequestId));}
public void RaiseRequestApprovedEvent(string RequestId, Guid instanceId){
if (RequestApproved != null)RequestApproved(
null, new RequestEventArgs(instanceId, RequestId));}
public void RaiseRequestRejectedEvent(string RequestId, Guid instanceId){
if (RequestRejected != null)RequestRejected(
null, new RequestEventArgs(instanceId, RequestId));}
public void RaiseRequestProcessedEvent(string RequestId, Guid instanceId){
if (RequestProcessed != null)RequestProcessed(
null, new RequestEventArgs(instanceId, RequestId));}
public event EventHandler<RequestEventArgs> RequestCreated;public event EventHandler<RequestEventArgs> RequestApproved;public event EventHandler<RequestEventArgs> RequestRejected;public event EventHandler<RequestEventArgs> RequestProcessed;}
}
--
using
System;using
System.Collections.Generic;using
System.Text;using
System.Workflow.ComponentModel;using
System.Workflow.Activities;namespace
RequestLocalServices{
[
Serializable]public class RequestEventArgs : ExternalDataEventArgs{
private string _RequestId;public RequestEventArgs(Guid instanceId, string RequestId):
base(instanceId){
_RequestId = RequestId;
}
public string RequestId{
get { return _RequestId; }set { _RequestId = value; }}
}
[
ExternalDataExchange]public interface IRequestService{
event EventHandler<RequestEventArgs> RequestCreated;event EventHandler<RequestEventArgs> RequestApproved;event EventHandler<RequestEventArgs> RequestRejected;event EventHandler<RequestEventArgs> RequestProcessed;}
}
Thanks,
Shivali
Thanks Tom for such a quick reply
We have been using Beta2.
hosting the state machine workflow with a web application
Could you please give the location and line of code to be put in the code?
Pasting my code here
using
using
System.Collections.Generic;using
System.Text;namespace
RequestLocalServices{
[
Serializable]public class RequestService : IRequestService{
public RequestService(){
}
public void RaiseRequestCreatedEvent(string RequestId, Guid instanceId){
if (RequestCreated != null)RequestCreated(
null, new RequestEventArgs(instanceId, RequestId));}
public void RaiseRequestApprovedEvent(string RequestId, Guid instanceId){
if (RequestApproved != null)RequestApproved(
null, new RequestEventArgs(instanceId, RequestId));}
public void RaiseRequestRejectedEvent(string RequestId, Guid instanceId){
if (RequestRejected != null)RequestRejected(
null, new RequestEventArgs(instanceId, RequestId));}
public void RaiseRequestProcessedEvent(string RequestId, Guid instanceId){
if (RequestProcessed != null)RequestProcessed(
null, new RequestEventArgs(instanceId, RequestId));}
public event EventHandler<RequestEventArgs> RequestCreated;public event EventHandler<RequestEventArgs> RequestApproved;public event EventHandler<RequestEventArgs> RequestRejected;public event EventHandler<RequestEventArgs> RequestProcessed;}
}
--
using
System;using
System.Collections.Generic;using
System.Text;using
System.Workflow.ComponentModel;using
System.Workflow.Activities;namespace
RequestLocalServices{
[
Serializable]public class RequestEventArgs : ExternalDataEventArgs{
private string _RequestId;public RequestEventArgs(Guid instanceId, string RequestId):
base(instanceId){
_RequestId = RequestId;
}
public string RequestId{
get { return _RequestId; }set { _RequestId = value; }}
}
[
ExternalDataExchange]public interface IRequestService{
event EventHandler<RequestEventArgs> RequestCreated;event EventHandler<RequestEventArgs> RequestApproved;event EventHandler<RequestEventArgs> RequestRejected;event EventHandler<RequestEventArgs> RequestProcessed;}
}
Thanks,
Shivali
In one case I had omitted to create an instance of the object that implements the interface containing the event definitions. In your case, this would be RequestService. Make sure your application that is going to raise the event is creating that object and adding as a service. Something like:
// Get a new workflow runtime
WorkflowRuntime wr = new WorkflowRuntime();
// Add the external data service
ExternalDataExchangeService dataService = new ExternalDataExchangeService();
wr.AddService(dataService);
// Add custom manual charge service
requestService = new RequestService();
dataService.AddService(requestService);
// Start
wr.StartRuntime();
RequestCreated(this, new RequestEventArgs(instanceId, RequestId));
instead of :RequestCreated(null, new RequestEventArgs(instanceId, RequestId));
Bad code on my part; but I wish the exception could be a bit more explicit about what is wrong.
I have downloaded and installed Visual Studio 2005 Extensions for Windows Workflow Foundation RC2(EN). When i try to install the WWF debugger, i get this window -
Platform Prerequisites Missing
Based on the components you selected to install, you must first install the following prerequisites.
Some required prerequisites are unavailable. You will not be able to automatically download updates.
Please guide
Thanks
I am having exactly the same "windows workflow foundation version 3.0.4125.0 required" message
I have a clean installation of vista 64 bit, and the SDK.
The instructions state the the WF component is part of Vista, so... where is it I ask myself?
JK
