A little background.
I'm upgrading a project that was written by someone using k2 2003 to use k2 Blackpearl.
The orignal k2 2003 process has the following destination rule and client event using 1 slot
public class DestinationRule_e68c062c1c8d41f5a80ba96b065f76f7
{
public void Main(ref DestinationRuleContext K2)
{
K2.ResolveQueuesToUsers = true;
K2.Destinations.Add(DestinationType.User, K2.ProcessInstance.Originator.FQN);
}
}
public class EventItem_5e24182cd2b9469aa5314aafaa0abeff
{
public void Main(ClientEventContext K2)
{
K2.VerifyCredentials = false;
try
{
K2.ProcessInstance.DataFieldsK"CurrentSerialNo"].Value = K2.SerialNumber;
}
catch (System.Exception ex)
{
throw new System.Exception(ex.Message);
}
}
NOTE that there is no call to "K2.AddWorklist" in the code above. Should there be?
The process uses a data field to store the serial number and then uses the serial number for opening
a worklistitem and then finishing it like so(using K2ROM dll) from a web app:
//using k2 2003
public void FinishWorkItem()
{
if (this.ProcessInstance != null)
{
if (!string.IsNullOrEmpty(this.CurrentSerialNo))
{
WorklistItem item = null;
Connection connection = GetConnection();
try
{
item = connection.OpenWorklistItem(this.CurrentSerialNo, "ASP");
}
catch { }
if (item != null)
{
this.CurrentSerialNo = string.Empty;
item.Finish();
}
}
}
else
{
throw new Exception("Cannot finish work item where ProcessInstance is null (calling from KOProcessInstance)");
}
}
Note how the OpenWorklistItem uses the "this.CurrentSerialNumber" which is the value of the serial number from the
data field for opening and finishing the worklistitem.
This seems to work fine in 2003
I re-wrote this method to use the BlackPearl API(SourceCode.Workflow.Client.dll) as follows:
//same code using BlackPearl
public void FinishWorkItem(IClientDocumentEntity currentClientDocument)
{
if (this.ProcessInstance != null)
{
if (!string.IsNullOrEmpty(this.CurrentSerialNo))
{
WorklistItem item = null;
item = connection.OpenWorklistItem(this.CurrentSerialNo,"ASP");
if (item != null)
{
if (item.Actions.Count > 0)
{
foreach (SourceCode.Workflow.Client.Action action in item.Actions)
{
if (string.Compare(action.Name, "Finish", true) == 0)
{
action.Execute();
break;
}
}
}
this.CurrentSerialNo = string.Empty;
}
}
}
else
{
throw new Exception("Cannot finish work item where ProcessInstance is null (calling from KOProcessInstance)");
}
}
The connection.OpenWorklistItem(this.CurrentSerialNo,"ASP") is throwing the following error
26030 Worklist item <MYSERVER>,13351,144 not found for <K2:MYDOMAINMYUSERNAME> at <MYSERVERIPADDRESS>
My question is whether there has been a change in behavior in the OpenWorklistItem call from
2003 to Blackpearl?
The "FinishWorkItem" method in my snippet from K2 2003 above is executed by an account that is an 'Admin' in
K2 2003 and it seems to be working fine in Production currently which leads me to believe that K2 2003
allows opening a WorklistItem using serial number regardless of the user to which the item is assigned to
and finishing it if the code is executed by an account that is an Admin on the K2 2003 server. Is this statement correct?
Has this behavior changed in BlackPearl? If so, what should I do differently to make things work.
Also, storing K2.SerialNumber as a data field in the process instance the right thing to do.
I'm not sure I understand whether if there are multiple destination users, will the data field contain the serial number
of the last destination user and whether opening the worklist item using this serial number is the right thing to do.
Thanks.
Abhijeet
