//读取获得数据private static DataTable GetExcelTablenew(string uploadPath){DataSet ds = new DataSet();Workbook workbook = new Workbook();workbook.Open(uploadPath);Names NameList = workbook.Worksheets.Names;Worksheet wsts = workbook.Worksheets[0];if (wsts.Cells.Count > 0){int MaxR = wsts.Cells.MaxRow;int MaxC = wsts.Cells.MaxColumn;if (MaxR > 0 && MaxC > 0){DataTable dt = wsts.Cells.ExportDataTableAsString(0, 0, MaxR + 1, MaxC + 1, true);ds.Tables.Add(dt);}}if (ds.Tables.Count < 1){return new DataTable();}return ds.Tables[0];}

 1  /// <summary>
 2         /// 分解数据表
 3         /// </summary>
 4         /// <param name="originalTab">需要分解的表</param>
 5         /// <param name="rowsNum">每个表包含的数据量</param>
 6         /// <returns></returns>
 7         public static string[] SplitDataTable(DataTable originalTab, int rowsNum,string filePath)
 8         {
 9             Console.WriteLine("分隔真的要开始咯");
10             string[] ListName=new string[10];
11             //获取所需创建的表数量
12             int tableNum = originalTab.Rows.Count / rowsNum;
13
14             //获取数据余数
15             int remainder = originalTab.Rows.Count % rowsNum;
16
17             DataSet ds = new DataSet();
18
19             //如果只需要创建1个表，直接将原始表存入DataSet
20             if (tableNum == 0)
21             {
22                 ds.Tables.Add(originalTab);
23             }
24             else
25             {
26                 DataTable[] tableSlice = new DataTable[tableNum];
27
28                 //Save orginal columns into new table.
29                 for (int c = 0; c < tableNum; c++)
30                 {
31                     tableSlice[c] = new DataTable();
32                     foreach (DataColumn dc in originalTab.Columns)
33                     {
34                         tableSlice[c].Columns.Add(dc.ColumnName, dc.DataType);
35                     }
36                 }
37                 //Import Rows
38                 for (int i = 0; i < tableNum; i++)
39                 {
40                     // if the current table is not the last one
41                     if (i != tableNum - 1)
42                     {
43                         for (int j = i * rowsNum; j < ((i + 1) * rowsNum); j++)
44                         {
45                             tableSlice[i].ImportRow(originalTab.Rows[j]);
46                         }
47                     }
48                     else
49                     {
50                         for (int k = i * rowsNum; k < ((i + 1) * rowsNum + remainder); k++)
51                         {
52                             tableSlice[i].ImportRow(originalTab.Rows[k]);
53                         }
54                     }
55                 }
56
57                 for (int i = 0; i < tableSlice.Length; i++) {
58                     Console.WriteLine("进行写入文件咯");
59                     ListName[i] = TableTntoCsv(tableSlice[i], filePath, i);
60                 }
61             }
62
63             return ListName;
64
65         }