/// <summary> /// Executes on type to instance change /// </summary> /// <param name="uiapp"></param> /// <param name="text"></param> /// <param name="values"></param> private void ExecuteParameterChange(UIApplication uiapp, String text, List <string> values, string type) { UIDocument uidoc = uiapp.ActiveUIDocument; Document doc = uidoc.Document; if (!doc.IsFamilyDocument) { Command.global_message = "Please run this command in a family document."; TaskDialog.Show("Message", Command.global_message); } if ((uidoc != null)) { using (TransactionGroup tg = new TransactionGroup(doc, "Parameter Type To Instance")) { tg.Start(); using (Transaction trans = new Transaction(uidoc.Document)) { FailureHandlingOptions failureHandlingOptions = trans.GetFailureHandlingOptions(); FailureHandler failureHandler = new FailureHandler(); failureHandlingOptions.SetFailuresPreprocessor(failureHandler); failureHandlingOptions.SetClearAfterRollback(true); trans.SetFailureHandlingOptions(failureHandlingOptions); // Since we'll modify the document, we need a transaction // It's best if a transaction is scoped by a 'using' block // The name of the transaction was given as an argument if (trans.Start(text) == TransactionStatus.Started) { FamilyManager mgr = doc.FamilyManager; foreach (var value in values) { FamilyParameter fp = mgr.get_Parameter(value); if (fp.IsInstance) { mgr.MakeType(fp); } else { mgr.MakeInstance(fp); }; } } doc.Regenerate(); trans.Commit(); uidoc.RefreshActiveView(); if (failureHandler.ErrorMessage != "") { if (EncounteredError != null) { EncounteredError(this, null); } } } tg.Assimilate(); } } }