NOPI 导出 Excel 2007

代码：

 1    public static void ThisTo<T>( List<T> source, string[] colums, Func<T, object[]> action, string savePath, string sheetName = "") 
 2         {
 3             XSSFWorkbook xssfworkbook = new XSSFWorkbook();
 4             ISheet sheet = xssfworkbook.CreateSheet(sheetName);
 5             IRow row = sheet.CreateRow(0);
 6             for (int i = 0; i < colums.Length; i++)
 7             {
 8                 ICell cell = row.CreateCell(i);
 9                 cell.SetCellValue(colums[i]);
10             }
11             for (int i = 0; i < source.Count; i++)
12             {
13                     IRow row1 = sheet.CreateRow(i + 1);
14                      int colIndex = 0;
15                      row1.Cells.AddRange(action(source[i]).Select(p =>
16                      {
17                         var colCell = row1.CreateCell(colIndex,CellType.String);
18                         colCell.SetCellValue(p.ToString());
19                         colIndex++;
20                         return colCell;
21                     }));
22             }
23             MemoryStream stream = new MemoryStream();
24             xssfworkbook.Write(stream);
25             var buf = stream.ToArray();
26             using (FileStream fs = new FileStream(savePath, FileMode.Create, FileAccess.Write))
27             {
28                 fs.Write(buf, 0, buf.Length);
29                 fs.Flush();
30             }
31         }

调用：

1  ThisTo<NAMES>(a, new string[] { "Name","Gender"}, p =>
2             {
3                 return new object[] {
4                   p.Name,
5                   p.Gender
6                 };
7             }, @"D:ABCD.xlsx", "234");

说明：

方法中第一个参数为需导出数据，第二个参数为Excel列名，第三个为导出时数据排布顺序（与第二个参数相对应），第四参数为保存地址，第五参数为sheet名，

调用参照上述调用方法。