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  • NPOI 1.0

    1 应用组件

     using NPOI.SS.UserModel;

     using NPOI.HSSF.Util;

    2.一个简单demo

      

    2.1 定义单元格常用到样式的枚举

    public enum stylexls
    {

    shead,//头
    surl,
    sdate,//时间
    snumber,//数字
    smoney,//钱
    spercentage,//百分比
    schinaUpper,//中文大写
    scientific,//科学计数法
    sdefault //默认
    }

    2.2定义单元格常用到样式

    static ICellStyle Getcellstyle(IWorkbook wb, stylexls str)
    {
    ICellStyle cellStyle = wb.CreateCellStyle();

    //定义几种字体
    //也可以一种字体,写一些公共属性,然后在下面需要时加特殊的
    IFont font12 = wb.CreateFont();
    font12.FontHeightInPoints = 10;
    font12.FontName = "微软雅黑";


    IFont font = wb.CreateFont();
    font.FontName = "微软雅黑";
    //font.Underline = 1;下划线


    IFont fontcolorblue = wb.CreateFont();
    fontcolorblue.Color = HSSFColor.OLIVE_GREEN.BLUE.index;
    fontcolorblue.IsItalic = true;//下划线
    fontcolorblue.FontName = "微软雅黑";


    //边框
    cellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.DOTTED;
    cellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.HAIR;
    cellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.HAIR;
    cellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.DOTTED;
    //边框颜色
    cellStyle.BottomBorderColor = HSSFColor.OLIVE_GREEN.BLUE.index;
    cellStyle.TopBorderColor = HSSFColor.OLIVE_GREEN.BLUE.index;
    cellStyle.FillForegroundColor = HSSFColor.WHITE.index;
    cellStyle.FillBackgroundColor = HSSFColor.BLUE.index;

    //水平对齐
    cellStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.LEFT;

    //垂直对齐
    cellStyle.VerticalAlignment = VerticalAlignment.CENTER;

    //自动换行
    cellStyle.WrapText = true;

    //缩进;
    cellStyle.Indention = 0;

    //上面基本都是设共公的设置
    //下面列出了常用的字段类型
    switch (str)
    {
    case stylexls.shead:
    // cellStyle.FillPattern = FillPatternType.LEAST_DOTS;
    cellStyle.SetFont(font12);
    break;
    case stylexls.sdate:
    IDataFormat datastyle = wb.CreateDataFormat();

    cellStyle.DataFormat = datastyle.GetFormat("yyyy/mm/dd");
    cellStyle.SetFont(font);
    break;
    case stylexls.snumber:
    cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("0.00");
    cellStyle.SetFont(font);
    break;
    case stylexls.smoney:
    IDataFormat format = wb.CreateDataFormat();
    cellStyle.DataFormat = format.GetFormat("¥#,##0");
    cellStyle.SetFont(font);
    break;
    case stylexls.surl:
    fontcolorblue.Underline = 1;
    cellStyle.SetFont(fontcolorblue);
    break;
    case stylexls.spercentage:
    cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("0.00%");
    cellStyle.SetFont(font);
    break;
    case stylexls.schinaUpper:
    IDataFormat format1 = wb.CreateDataFormat();
    cellStyle.DataFormat = format1.GetFormat("[DbNum2][$-804]0");
    cellStyle.SetFont(font);
    break;
    case stylexls.scientific:
    cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("0.00E+00");
    cellStyle.SetFont(font);
    break;
    case stylexls.sdefault:
    cellStyle.SetFont(font);
    break;
    }
    return cellStyle;


    }

    2.3创建一个常用的xls文件

    IWorkbook wb = new HSSFWorkbook();
    //创建表
    ISheet sh = wb.CreateSheet("索引一");
    //设置单元的宽度
    sh.SetColumnWidth(0, 15 * 256);
    sh.SetColumnWidth(1, 35 * 256);
    sh.SetColumnWidth(2, 15 * 256);
    sh.SetColumnWidth(3, 10 * 256);
    #region 练习合并单元格
    sh.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, 3));

    IRow row0 = sh.CreateRow(0);
    row0.Height = 20 * 20;
    ICell icell1top0 = row0.CreateCell(0);
    icell1top0.CellStyle = Getcellstyle(wb, stylexls.shead);
    icell1top0.SetCellValue("角色人物属性列表");
    #endregion

    #region 设置表头
    IRow row1 = sh.CreateRow(1);
    row1.Height = 20 * 20;

    ICell icell1top = row1.CreateCell(0);
    icell1top.CellStyle = Getcellstyle(wb, stylexls.shead);
    icell1top.SetCellValue("角色");

    ICell icell2top = row1.CreateCell(1);
    icell2top.CellStyle = Getcellstyle(wb, stylexls.shead);
    icell2top.SetCellValue("攻击属性");

    ICell icell3top = row1.CreateCell(2);
    icell3top.CellStyle = Getcellstyle(wb, stylexls.shead);
    icell3top.SetCellValue("防御属性");

    ICell icell4top = row1.CreateCell(3);
    icell4top.CellStyle = Getcellstyle(wb, stylexls.shead);
    icell4top.SetCellValue("附加属性");
    #endregion

    #region 数据绑定
    for (int i = 3; i < 5; i++){

    IRow row = sh.CreateRow(i);
    for (int j = 0; j < 4; j++)
    {
    string values =j==0?"JS"+j:j==1?"100+":"150";
    ICell cell = row.CreateCell(j);
    cell.CellStyle = Getcellstyle(wb, stylexls.sdefault);
    cell.SetCellValue(values);
    }
    }
    #endregion
    using (FileStream stm = File.OpenWrite(@"c:/myMergeCell.xls"))
    {
    wb.Write(stm);
    }

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  • 原文地址:https://www.cnblogs.com/linsu/p/3523577.html
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