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  • NPOI开源组件(操作Execl)创建Workbook和Sheet,创建单元格,设置行列样式等

    using NPOI.SS.UserModel; 
    using NPOI.HSSF.UserModel; 
    
    //创建Execl
    IWorkbook hssfworkbook =new HSSFWorkbook(); 
    
    //创建一个Sheet
    hssfworkbook.CreateSheet("Sheet1"); 
    
    //HSSFWorkbook实例写入文件
    FileStream file = new FileStream(@"test.xls", FileMode.Create); 
    hssfworkbook.Write(file); 
    file.Close(); 
    
    
    //要创建单元格首先要创建单元格所在的行,比如,下面的代码创建了第0行: 
    ISheet sheet1 = hssfworkbook.CreateSheet("Sheet1"); 
    IRow row1=sheet1.CreateRow(0); 
    
    //行建好了,就可以建单元格了,比如创建A1位置的单元格: 
    row1.CreateCell(0).SetCellValue("This is a Sample"); 
    
    //或者sheet1.GetRow(0).CreateCell(0).SetCellValue("This is a Sample"); 
    
    
    //set header text 设置页眉
    s1.Header.Center = "This is a test sheet"; 
    //set footer text 设置页脚
    s1.Footer.Left = "Copyright NPOI Team"; 
    s1.Footer.Right = "created by 123"; 
    
    //set date format 设置单元格格式
    ICellStyle cellStyle = hssfworkbook.CreateCellStyle();
    IDataFormat format = hssfworkbook.CreateDataFormat(); 
    cellStyle.DataFormat = format.GetFormat("yyyy年m月d日");
    //cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("0.00"); 单元格格式为“0.00”来表示,"¥#,##0"美元显示,"0.00%"百分比显示
    cell.CellStyle=cellStyle;
    
    //合并单元格
    IRow row = sheet.CreateRow(0); 
    ICell cell = row.CreateCell(0); 
    cell.SetCellValue("Sales Report"); 
    ICellStyle style = hssfworkbook.CreateCellStyle(); 
    style.Alignment = HorizontalAlignment.CENTER; 
    IFont font = hssfworkbook.CreateFont(); 
    font.FontHeight = 20*20; 
    style.SetFont(font); 
    cell.CellStyle = style;
    sheet.AddMergedRegion(new Region(0, 0, 0, 5)); 
    

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  • 原文地址:https://www.cnblogs.com/smartsmile/p/6234401.html
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