C# 获取DataTable数据导出到Excel

 1     protected void ExportExcel(System.Data.DataTable dt)
 2     {
 3         if (dt == null || dt.Rows.Count == 0) return;
 4         Microsoft.Office.Interop.Excel.Application xlsxApp = new Application();
 5         if (xlsxApp == null) return;
 6         //System.Globalization.CultureInfo CurrentCI = System.Threading.Thread.CurrentThread.CurrentCulture;
 7         //System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
 8         Microsoft.Office.Interop.Excel.Workbooks workbooks = xlsxApp.Workbooks;
 9         Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
10         Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];
11         Microsoft.Office.Interop.Excel.Range range;
12         long totalCount = dt.Rows.Count;
13         long rowRead = 0;
14         float percent = 0;
15         for (int i = 0; i < dt.Columns.Count; i++)
16         {
17             worksheet.Cells[1, i + 1] = dt.Columns[i].ColumnName;
18             range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[1, i + 1];
19             range.Interior.ColorIndex = 15;
20         }
21         for (int r = 0; r < dt.Rows.Count; r++)
22         {
23             for (int i = 0; i < dt.Columns.Count; i++)
24             {
25                 try
26                 {
27                     worksheet.Cells[r + 2, i + 1] = dt.Rows[r][i].ToString();
28                 }
29                 catch (Exception)
30                 {
31                     worksheet.Cells[r + 2, i + 1] = dt.Rows[r][i].ToString().Replace("=", "");
32                     throw;
33                 }
34             }
35             rowRead++;
36             percent = ((float)(100 * rowRead)) / totalCount;
37         }
38         ////在Excel的指定位置加入图片
39         //worksheet.Shapes.AddPicture("C:\\Users\\mengmeng.zhao\\Desktop\\1.jpg",
40         //    Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoTrue, 100, 200, 200, 300);
41         ////在Excel的指定位置加入文本框，和里面的内容.
42         //worksheet.Shapes.AddTextEffect(Microsoft.Office.Core.MsoPresetTextEffect.msoTextEffect1,
43         //    "123456", "Red", 15, Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoTrue, 150, 200);
44 
45         xlsxApp.Visible = true;
46     }