public int DisplaceUserInProcess(string processID, string userID, string[] displacingUserIDArray) { IUser originalUser = OguMechanismFactory.GetMechanism().GetObjects <IUser>(SearchOUIDType.Guid, userID).FirstOrDefault(); OguObjectCollection <IUser> displacingUsers = OguMechanismFactory.GetMechanism().GetObjects <IUser>(SearchOUIDType.Guid, displacingUserIDArray); List <IUser> distinctUsers = new List <IUser>(); foreach (IUser user in displacingUsers) { if (distinctUsers.Exists(u => u.ID == user.ID) == false) { distinctUsers.Add(user); } } IWfProcess process = WfRuntime.GetProcessByProcessID(processID); int result = 0; foreach (IWfActivity activity in process.Activities) { bool needReplace = false; if (activity.Status != WfActivityStatus.Completed && activity.Status != WfActivityStatus.Aborted) { if (activity.Status == WfActivityStatus.Running || activity.Status == WfActivityStatus.Pending) { needReplace = activity.Assignees.Contains(originalUser.ID); } else { needReplace = activity.Candidates.Contains(originalUser.ID); } if (needReplace) { WfReplaceAssigneesExecutor executor = new WfReplaceAssigneesExecutor(null, activity, originalUser, distinctUsers); executor.ExecuteNotPersist(); result++; } } } using (TransactionScope scope = TransactionScopeFactory.Create()) { WfReplaceAssigneesExecutor.DoUserTaskOperations(); WfRuntime.PersistWorkflows(); scope.Complete(); } return(result); }