public bool addData(DataRow row) { try { if (row != null) { if (validator.check(row)) { rows.Add(ToolRow.createRowCopy(row)); EventHandler h_ = referenceMode.handlerOk; //make backup referenceMode.handlerOk = null; if (h_ != null) { h_.Invoke(this, EventArgs.Empty);// } if (this.getFlagStore().isFlagEnabled(ReferenceFlags.formBatchMode)) { this.clear(); //clear data and handler referenceMode.handlerOk = h_; //will be re-used return(false); //dont close } return(true); } } return(false); } finally { referenceMode.lastBatchModeIndex = -1; } }