有什么方法可以使用 POI 将工作表的水平滚动条向左移动一列? [英] Is there any way to move horizontal scroll bar the sheet one column to the left using POI?

问题描述

我编写了一个读取 Excel 模板表的程序.其中隐藏了第一列.现在，我有一个以编程方式取消隐藏 excel 列的代码(因此 Column 从 A1 开始).

I have written a program that reads Excel template sheet. In which the first column was hidden. Now, I have a code that un-hide the excel column programmatically (so Column start from A1).

我使用的是 Apache POI 3.16 版本.

I'm using Apache POI 3.16 version.

当我打开一个文件时，它应该显示 A1 中的一列，而不是显示 B1 中的一列.当我为 XLS 编写以下代码时，它工作正常，但不适用于 XLSX 格式.

When I open a file, it should show me a column from A1 instead it shows me from B1 column. When I write below code for XLS, It working properly but didn't work for an XLSX format.

sheet.showInPane(0, 0);

我需要手动移动水平滚动条来查看我的第一列.我应该如何以编程方式实现这一点以自动滚动到 XLSX 格式的第一列?

I need to manually move the horizontal scroll bar to view my first column. How should I achieve this programmatically to auto-scroll to the first column for XLSX format?

这是我的完整代码.

public Workbook readWorkBookAndWriteErrors(String bufId,String inputFile, String ext) throws Exception {
        Workbook workBook =null;
        Sheet sheet = null; 
        if(GlobalVariables.EXCEL_FORMAT_XLS.equalsIgnoreCase(ext)){
             // Get the workbook instance for XLS file
            workBook = new HSSFWorkbook(new FileInputStream(inputFile));
        }else{
            // Get the workbook instance for XLSX file
            workBook = new XSSFWorkbook(new FileInputStream(inputFile));
        }
        sheet = workBook.getSheetAt(0);
        Row row = null;
        if(sheet.isColumnHidden(0)){
            sheet.setColumnHidden(0, false);
            sheet.setActiveCell(new CellAddress("A1"));
            sheet.showInPane(0, 0);
            sheet.createFreezePane(0, 1);

             Iterator<Row> rowIterator = sheet.iterator();
                int rowIndex = 1;
                while (rowIterator.hasNext()) {
                    row = rowIterator.next();
                    if(rowIndex == 1){
                        rowIndex++;
                        continue;
                    }
                    Cell cell = row.createCell(0);
                    cell.setCellValue("error message");
                    rowIndex++;
                }
        }
        return workBook;
    }

推荐答案

这是我问题的答案.请参考此来源

Here is the answer to my question. Please refer this Source

public Workbook readWorkBookAndWriteErrors(String bufId,String inputFile, String ext) throws Exception {
        Workbook workBook =null;
        Sheet sheet = null; 
        if(GlobalVariables.EXCEL_FORMAT_XLS.equalsIgnoreCase(ext)){
             // Get the workbook instance for XLS file
            workBook = new HSSFWorkbook(new FileInputStream(inputFile));
        }else{
            // Get the workbook instance for XLSX file
            workBook = new XSSFWorkbook(new FileInputStream(inputFile));
        }
        sheet = workBook.getSheetAt(0);
        Row row = null;
        if(sheet.isColumnHidden(0)){
            sheet.setColumnHidden(0, false);

            if(sheet instanceof XSSFSheet){
                CTWorksheet ctWorksheet = null; 
                CTSheetViews ctSheetViews = null; 
                CTSheetView ctSheetView = null; 
                XSSFSheet tempSheet = (XSSFSheet) sheet;
                 // First step is to get at the CTWorksheet bean underlying the worksheet. 
                ctWorksheet = tempSheet.getCTWorksheet(); 
                // From the CTWorksheet, get at the sheet views. 
                ctSheetViews = ctWorksheet.getSheetViews(); 
                // Grab a single sheet view from that array 
                ctSheetView = ctSheetViews.getSheetViewArray(ctSheetViews.sizeOfSheetViewArray() - 1); 
                // Se the address of the top left hand cell. 
                ctSheetView.setTopLeftCell("A1"); 
            }else{
                 sheet.setActiveCell(new CellAddress("A1"));
                 sheet.showInPane(0, 0);
            }


             Iterator<Row> rowIterator = sheet.iterator();
                int rowIndex = 1;
                while (rowIterator.hasNext()) {
                    row = rowIterator.next();
                    if(rowIndex == 1){
                        rowIndex++;
                        continue;
                    }
                    Cell cell = row.createCell(0);
                    cell.setCellValue("error message");
                    rowIndex++;
                }
        }
        return workBook;
    }

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