public int getSheetIndex(EvaluationSheet evalSheet) {HSSFSheet sheet = ((HSSFEvaluationSheet)evalSheet).getHSSFSheet();return _uBook.getSheetIndex(sheet);}
public int GetSheetIndex(IEvaluationSheet evalSheet){HSSFSheet sheet = ((HSSFEvaluationSheet)evalSheet).HSSFSheet;return _uBook.GetSheetIndex(sheet);}