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不可分割数据

GcExcel Java 允许用户在导出到PDF文件时将一些行合并到一起不做分割。

此功能非常有用,尤其是当工作表中有大量数据要导出为PDF文件时。例如,假设您有一个表单,其中有多组行经常被隐藏,但最终会在打印时修改页数和分页符。现在,您需要将Excel文件导出为PDF格式,这样它可以将一些行组放合在一起,以便在执行打印操作时不会在分页符或页面之间拆分。在这种情况下,利用此功能在导出到PDF文件时获得完美的打印体验和准确的内容发布是非常有帮助的。


为了使某些行组在分页符上保持在一起,需要首先创建一个单元格区域,其中包含要在PDF文件中一起显示的行。 接下来,创建PrintManager 类的实例,并使用 paginate() 方法确保所需的行一起显示。 完成后,只需使用 savePageInfosToPDF() 方法保存PDF文件。

示例代码

请参阅以下示例代码,以允许用户在导出到PDF文件时在分页符上保留一些行。

// Initialize workbook
Workbook workbook = new Workbook();
        
// Open Excel file
workbook.open("KeepTogether.xlsx");
        
// Fetch default worksheet
IWorksheet worksheet = workbook.getWorksheets().get(0);

/* The first page of the natural pagination is from 
   row 1st to 36th, the second page is from row 37th to 73rd */
List keepTogetherRanges = new ArrayList();

/* The row 37th and 38th need to keep together.
   So the pagination results are: the first page is from row 
   1st to 35th, the second page is from row 36th to 73rd*/
keepTogetherRanges.add(worksheet.getRange("36:37"));

// Create an instance of the PrintManager class
PrintManager printManager = new PrintManager();

// Get the pagination information of the worksheet
List pages = 
printManager.paginate(worksheet, keepTogetherRanges, null);

// Save the modified pages into pdf file
printManager.savePageInfosToPDF("KeepTogether.pdf", pages);