I have my Asp.Net Application :
when i press the button the first state in done and then the work flow fired the event idle and every thing is ok .
"operation Sucess " .
then i press again on the button ......the WorkFlow Idle if fired twice .continously
if i press the third time ......the work flow fired idle event " three times continously "
why ???
how can i solve it .
Could you explain how workflows and ASP.net are being used together in your scenario? How is the workflow runtime configured, are you using a state machine or a sequential workflow, how does host application communicate with the workflow, are you using a persistence service?
Hello dear ,
Thanks for ur reply ,
ok i will tell u how I use My work Flow :
First : I create run time in my Global File :
protected void Application_Start(object sender, EventArgs e)
{
// creat new workflowruntime
WorkflowRuntime workFlowRuntime = new WorkflowRuntime();
// add ManualWorkflowSchedulerService
ManualWorkflowSchedulerService manualService = new ManualWorkflowSchedulerService();workFlowRuntime.AddService(manualService);
// Add the External Data Exchange Service ExternalDataExchangeService dataservice = new ExternalDataExchangeService();workFlowRuntime.AddService(dataservice);
// Add a new instance of the OrderService to the External Data Exchange Service OrdersService service = new OrdersService();dataservice.AddService(service);
//Add SqlPersistenceServiceworkFlowRuntime.AddService(
new SqlWorkflowPersistenceService(System.Configuration.ConfigurationSettings.AppSettings["EpaymentConnectionString"]));
//start workFlowRunTime
workFlowRuntime.StartRuntime();
// set workFlow for an applicationApplication[
"WorkflowRuntime"] = workFlowRuntime;}
protected void Application_End(object sender, EventArgs e){
WorkflowRuntime workFlowRuntime = Application["WorkflowRuntime"] as WorkflowRuntime;// stop workflow runtimeworkFlowRuntime.StopRuntime();
}
-
second : in my page Form I write this code :
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
try
{
StartWorkFlow();
_workFlowInstanceId = GetworkFlowInstanceId(_pageContent);
if (_workFlowInstanceId != Guid.Empty){
_service.RaiseRecievedEvent(
new OrdersEventArgs(_workFlowInstanceId));_manualScheduler.RunWorkflow(_workFlowInstanceId);
}
else{
Response.Write(
"Unexpected error");}
}
catch{
Response.Write(
"Unexpected error");}
}
private void StartWorkFlow(){
try{
_workFlowRunTime = Application[
"WorkflowRuntime"] as WorkflowRuntime;_manualScheduler = _workFlowRunTime.GetService<
ManualWorkflowSchedulerService>();_service = _workFlowRunTime.GetService<
OrdersService>();sqlservice = _workFlowRunTime.GetService<
SqlWorkflowPersistenceService>();//create EventHandler for a workflow runtime_workFlowRunTime.WorkflowTerminated +=
new EventHandler<WorkflowTerminatedEventArgs>(WorkFlowrunTime_Terminated);_workFlowRunTime.WorkflowIdled +=
new EventHandler<WorkflowEventArgs>(WorkFlowrunTime_Idled);_workFlowRunTime.WorkflowSuspended +=
new EventHandler<WorkflowSuspendedEventArgs>(_workFlowRunTime_WorkflowSuspended);}
catch{
_summerryLabel.Text =
"UnExpected Error";}
}
private
Guid GetworkFlowInstanceId(){
try{
//create instance work flow_workFlowInstance = _workFlowRunTime.CreateWorkflow(
typeof(BLL.WorkFlow.TransactionWorkflow));//start WorkFlow_workFlowInstance.Start();
Hidden1.Value = _workFlowInstance.InstanceId.ToString();
//return instanceId return _workFlowInstance.InstanceId;}
catch{
return Guid.Empty;}
}
private void WorkFlowrunTime_Terminated(object sender, WorkflowTerminatedEventArgs e){
_summerryLabel.Text = e.Exception.Message;
}
private void WorkFlowrunTime_Idled(object sender, WorkflowEventArgs e){
//upload workflow from memory to database_workFlowInstance.Unload();
}
Now in the form Load I start my work Flow And i raise event to start first state ,,,,and the work Flow idle Works once ....then i press F5 "Frfresh" the form load start and raise event again but the event idle fired twice Contiuously .......if I press F5 as a third time ...the event idle fired three times Contiuously
thanks
hema
