I want to compare two excel file cell style. By using apache poi how can i compare styles cell by cell?
And also i need which style is not matched, like align or bold or color..etc. That means unmatched styles should be a string(style name - align, color....)
With Cell.getCellStyle() you can find out the style per cell. With that you can check the fine granular CellStyle settings.
You might do it this way:
sheet.getRow(0).getCell(0).getCellStyle().getCoreXf();
The getCoreXf() method returns:
<xml-fragment numFmtId="14" fontId="0" fillId="2" borderId="0" xfId="0" applyNumberFormat="1" applyFill="1" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:x14ac="http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac"/>
Sample code (to compare styles of two cells):
FileInputStream file = new FileInputStream(new File("res/Book1.xlsx"));
//Get the workbook instance for XLS file
XSSFWorkbook workbook = new XSSFWorkbook (file);
//Get first sheet from the workbook
XSSFSheet sheet = workbook.getSheetAt(0);
CTXf style1 = sheet.getRow(0).getCell(0).getCellStyle().getCoreXf();
CTXf style2 = sheet.getRow(0).getCell(1).getCellStyle().getCoreXf();
System.out.println(style1);
System.out.println(style1.equals(style2)); //true if both are same and false if they are different
This seems to be working fine. Please try!
Related
I've got an Excel file I want to recreate through POI. The existing Excel file uses as DataFormat _(* #.##0_);_(* (#.##0);_(* "-"??_);_(#_). But when I assign that data format through POI, the resulting Excel file will instead use _(* #,##0_);_(* (#,##0);_(* "-"??_);_(#_). Note the tiny difference: a dot changed to a comma. Because of this, the entire format doesn't work anymore. It's not like it's now showing a comma where it used to have a dot; it's formatting the entire value in a completely different way.
Why does this happen? And how do I fix it?
The correct format string _(* #.##0_);_(* (#.##0);_(* "-"??_);_(#_) results in the number being displayed as 13.534.000.
The incorrect format string that Excel or POI changes it to, _(* #,##0_);_(* (#,##0);_(* "-"??_);_(#_) formats the value as 13534000,0.
It's a complete mystery to me why it would do that. I suppose it has something to do with the US and Europe using different formats to display big numbers, but I would imagine that that's exactly what this data format is supposed to address. Instead, it turns it into nonsense.
Apache POI creates Microsoft Office files. Those files never are localized. They always store data in en_US locale. The locale dependent adjustments are done in locale Office applications then. So a Microsoft Office file can be sent around the world without the need to change the stored data to a foreign locale.
So if you set the data format using ...
...
Workbook workbook = new XSSFWorkbook();
DataFormat dataformat = workbook.createDataFormat();
CellStyle cellStyle = workbook.createCellStyle();
cellStyle.setDataFormat(dataformat.getFormat("_(* #,##0_);_(* (#,##0);_(* \"-\"??_);_(#_)"));
...
... the format pattern always needs to be en_US. That means dot is decimal separator, comma is thousands delimiter. A locale Excel application might adjust that to _(* #.##0_);_(* (#.##0);_(* "-"??_);_(#_) then.
Let's have a complete example:
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class CreateExcelNumberFormat {
public static void main(String[] args) throws Exception {
Workbook workbook = new XSSFWorkbook();
DataFormat dataformat = workbook.createDataFormat();
CellStyle cellStyle = workbook.createCellStyle();
cellStyle.setDataFormat(dataformat.getFormat("_(* #,##0_);_(* (#,##0);_(* \"-\"??_);_(#_)"));
Sheet sheet = workbook.createSheet();
Row row = sheet.createRow(0);
Cell cell = row.createCell(0);
cell.setCellValue(1234567.89);
cell.setCellStyle(cellStyle);
row = sheet.createRow(1);
cell = row.createCell(0);
cell.setCellValue(-1234567.89);
cell.setCellStyle(cellStyle);
sheet.setColumnWidth(0, 15*256);
FileOutputStream out = new FileOutputStream("./CreateExcelNumberFormat.xlsx");
workbook.write(out);
out.close();
workbook.close();
}
}
The result Excel file looks in my German Excel like so:
I'm using Microsoft.Office.Interop.Excel to write an Excel file. The code below is not working:
var excel = new Microsoft.Office.Interop.Excel.Application();
var workbook = excel.Workbooks.Add(Type.Missing);
var worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.ActiveSheet;
worksheet.Name = "sheet1";
worksheet.Cells[1,1] = "top left";
worksheet.Cells[1,2] = "top right";
worksheet.Cells[2,1] = "bottom left";
worksheet.Cells[2,2] = "bottom right";
workbook.SaveAs("temp.xlsx");
workbook.Close();
excel.Quit();
It produces an Excel file but it is empty. I'm expecting to see the text "top left", "top right",... in the first 2 by 2 cells. But I see nothing.
Why is it not writing content to my worksheet?
You can find my code at github: https://github.com/gibran-shah/Image2Excel
Perhaps this link might help you: http://csharp.net-informations.com/excel/csharp-create-excel.htm
According to the link above, try using:
var worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.get_Item(1);
To troubleshoot further, I would choose some other name for the sheet, and check that the name is actually being set by opening the workbook and observing the name in the sheet's tab. This would ensure you are indeed adding data to the sheet that you think you are.
I have a list of employee records in a table, i want to generate report out of it. Is there a way to generate and send the generated report in excel format to the browser in response.FYI I'm using Spring boot and reactjs.
You probably want to look at Apache POI
There are some examples of creating XLS[X] files in their developers guide
A quick example from there
Workbook wb = new HSSFWorkbook();
//Workbook wb = new XSSFWorkbook();
CreationHelper createHelper = wb.getCreationHelper();
Sheet sheet = wb.createSheet("new sheet");
// Create a row and put some cells in it. Rows are 0 based.
Row row = sheet.createRow(0);
// Create a cell and put a value in it.
Cell cell = row.createCell(0);
cell.setCellValue(1);
// Or do it on one line.
row.createCell(1).setCellValue(1.2);
row.createCell(2).setCellValue(
createHelper.createRichTextString("This is a string"));
row.createCell(3).setCellValue(true);
// Write the output to a file
try (OutputStream fileOut = new FileOutputStream("workbook.xls")) {
wb.write(fileOut);
}
I am trying to change the font color for specific words with-in a cell. I don't want to change all of the text to the color just specific words. I am using an OfficeWriter ExcelTemplate.
You could use ExcelApplication to Post Process your OfficeWriter Template file.
You want to get a handle on what is referred to as a CharacterRun See the OfficeWriter documentation.
Your code would look something like:
ExcelTemplate xlt = new ExcelTemplate()
//Process Template
ExcelApplication xla = new ExcelApplication();
Workbook wb = xla.Open(xlt)
Worksheet ws = wb.Worksheets[0];
Cell cellA1 = ws.Cells["A1"];
cellA1.Value = "Test";
CharacterRun charRun = cellA1.GetCharacters(0,5);
charRun.Font.Color = Color.Red
In the formula bar, select the words you want to change the color of, then change the text color.
When my Office Writer Excel report opens, it randomly un-hides some of the hidden cells and columns. I have verified that it is not the data that causes the columns or cells to not be hidden. Has anyone experienced this before and is there a way to make sure that all columns or cells stay hidden when the excel file is opened?
I work for SoftArtisans. We have not had any other reports of programmatically hidden columns becoming visible in the output file. We also have not been able to reproduce the behavior you are reporting. It would be helpful to see a code snippet, as well as to know which version of OfficeWriter you are using and which version of Excel is being used to open the output file.
There are two ways to hide columns with our API, both using the ColumnProperties object. You can set the hidden property to true or set the width property to zero. You could do both if you like, although that shouldn't be necessary.
For example:
ExcelApplication xla = new ExcelApplication();
Workbook wb = xla.Create(ExcelApplication.FileFormat.Xlsx);
//or if opening an existing workbook
//Workbook wb = xla.Open(inputFilePath);
//Get a handle on the worksheet
Worksheet ws = wb.Worksheets[0];
//Write a value to a cell
ws.Cells[0, 9].Value = "Hidden Value";
//Get a handle on the column you want to hide
ColumnProperties colProps = ws.GetColumnProperties(9);
//set the column to hidden
colProps.Hidden = true;
//or set the column width to zero
colProps.Width = 0;
//Stream the output file to the response
xla.Save(wb, Page.Response, "HiddenColumnTest.xlsx", false);