NPOI/README.md

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NPOI

This project is migrated from Tony Qu's NPOI by .NET Core Community.

Announcement

The root upstream project of the NPOI project is tonyqus/NPOI, which is the .NET version of the Apache POI. tonyqus/NPOI is the project with the largest number of downloads of nuget package in the Chinese-speaking area. Developers at home and abroad know that this kind of glory and contribution cannot be obliterated. Just like Linux has derived so many distributions, but no one can deny Linus's contribution.

Install NuGet Package

Install-Package DotNetCore.NPOI

How can it work on Linux?

On Linux, you need install libgdiplus. Since 1.2.0 libdl is also required.

• Ubuntu 16.04 and above:

  • apt-get install libgdiplus libc6-dev
  • cd /usr/lib
  • ln -s libgdiplus.so gdiplus.dll

• Fedora 23 and above:

  • dnf install libgdiplus
  • cd /usr/lib64/
  • ln -s libgdiplus.so.0 gdiplus.dll

• CentOS 7 and above:

  • yum install autoconf automake libtool
  • yum install freetype-devel fontconfig libXft-devel
  • yum install libjpeg-turbo-devel libpng-devel giflib-devel libtiff-devel libexif-devel
  • yum install glib2-devel cairo-devel
  • git clone https://github.com/mono/libgdiplus
  • cd libgdiplus
  • ./autogen.sh
  • make
  • make install
  • cd /usr/lib64/
  • ln -s /usr/local/lib/libgdiplus.so gdiplus.dll

• Docker

  • Alpine

    # base sdk-alpine/aspnetcore-runtime-alpine images
    
    RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
    RUN apk --update add libgdiplus
    

  • Debian

    FROM microsoft/dotnet:2.1-aspnetcore-runtime
    RUN apt-get update && apt-get install -y libgdiplus libc6-dev && ln -s /usr/lib/libgdiplus.so /usr/lib/gdiplus.dll
    ...
    

Getting Started

Export Excel

var newFile = @"newbook.core.xlsx";

using (var fs = new FileStream(newFile, FileMode.Create, FileAccess.Write)) {

    IWorkbook workbook = new XSSFWorkbook();

    ISheet sheet1 = workbook.CreateSheet("Sheet1");

    sheet1.AddMergedRegion(new CellRangeAddress(0, 0, 0, 10));
    var rowIndex = 0;
    IRow row = sheet1.CreateRow(rowIndex);
    row.Height = 30 * 80;
    row.CreateCell(0).SetCellValue("this is content");
    sheet1.AutoSizeColumn(0);
    rowIndex++;

    var sheet2 = workbook.CreateSheet("Sheet2");
    var style1 = workbook.CreateCellStyle();
    style1.FillForegroundColor = HSSFColor.Blue.Index2;
    style1.FillPattern = FillPattern.SolidForeground;

    var style2 = workbook.CreateCellStyle();
    style2.FillForegroundColor = HSSFColor.Yellow.Index2;
    style2.FillPattern = FillPattern.SolidForeground;

    var cell2 = sheet2.CreateRow(0).CreateCell(0);
    cell2.CellStyle = style1;
    cell2.SetCellValue(0);

    cell2 = sheet2.CreateRow(1).CreateCell(0);
    cell2.CellStyle = style2;
    cell2.SetCellValue(1);

    workbook.Write(fs);
}

Export Word

var newFile2 = @"newbook.core.docx";
using (var fs = new FileStream(newFile2, FileMode.Create, FileAccess.Write)) {
    XWPFDocument doc = new XWPFDocument();
    var p0 = doc.CreateParagraph();
    p0.Alignment = ParagraphAlignment.CENTER;
    XWPFRun r0 = p0.CreateRun();
    r0.FontFamily = "microsoft yahei";
    r0.FontSize = 18;
    r0.IsBold = true;
    r0.SetText("This is title");

    var p1 = doc.CreateParagraph();
    p1.Alignment = ParagraphAlignment.LEFT;
    p1.IndentationFirstLine = 500;
    XWPFRun r1 = p1.CreateRun();
    r1.FontFamily = "·ÂËÎ";
    r1.FontSize = 12;
    r1.IsBold = true;
    r1.SetText("This is content, content content content content content content content content content");

    doc.Write(fs);
}