C# DataSet数据导入Excel 修正版- .net FrameWork 4.0以上

 引入  Microsoft.Office.Interop.Excel.dll
 格式：标题加了下划线，单元格内容居中
 1 using System;
 using System.Data;
 using System.Data.SqlClient;
 using System.Web.UI;    

      public static void DataSetToExcel(DataTable dataTable, string SaveFile)
             {
                 Microsoft.Office.Interop.Excel.Application excel;  

                 Microsoft.Office.Interop.Excel._Workbook workBook;  

                 Microsoft.Office.Interop.Excel._Worksheet workSheet;  

                 object misValue = System.Reflection.Missing.Value;  

                 excel = new Microsoft.Office.Interop.Excel.Application();

                 workBook = excel.Workbooks.Add(misValue);  

                 workSheet = (Microsoft.Office.Interop.Excel._Worksheet)workBook.ActiveSheet;  

                 int rowIndex = ;  

                 int colIndex = ;

                 //取得标题
                 foreach (DataColumn col in dataTable.Columns)
                 {
                     colIndex++;  

                     excel.Cells[, colIndex] = col.ColumnName;
                     Microsoft.Office.Interop.Excel.Range range = workSheet.Range[workSheet.Cells[, colIndex],workSheet.Cells[,colIndex]];
                     range.Font.Underline = true;
                 }

                 //取得表格中的数据
                 foreach (DataRow row in dataTable.Rows)
                 {
                     rowIndex++;  

                     colIndex = ;  

                     foreach (DataColumn col in dataTable.Columns)
                     {
                        colIndex++;  

                        excel.Cells[rowIndex, colIndex] =   

                             row[col.ColumnName].ToString().Trim();

                        Microsoft.Office.Interop.Excel.Range range = workSheet.Range[excel.Cells[rowIndex, colIndex], excel.Cells[rowIndex, colIndex]];
                        range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter;
                     }
                 }  

                 excel.Visible = false;
                 excel.DisplayAlerts = false;

                 if (workSheet != null)
                 {
                     workBook.SaveAs(SaveFile, Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookNormal, misValue,

                         misValue, misValue, misValue, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive,

                         misValue, misValue, misValue, misValue, misValue);
                 }

                 dataTable = null;  

                 workBook.Close(true, misValue, misValue);  

                 excel.Quit();  

                 releaseObject(workSheet);  

                 releaseObject(workBook);  

                 releaseObject(excel);  

             }  

             private static void releaseObject(object obj)
             {
                 try
                 {
                     System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
                     obj = null;
                 }
                 catch
                 {
                     obj = null;
                 }
                 finally
                 {
                     GC.Collect();
                 }
             }

Call funxction example:

  DataSetToExcel(ds.Tables[], @"D:\ZhaoNick\Desktop\test.xls");

这次需要做一个windowServices，主要的功能就是从local db提取数据存入ftp excel file中，在提取数据成功后存入dataset中，在导入到excel时要给标题加下划线和内容设置居中时，发现报了“Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: “object”未包含“get_Range”的定义”这么一段错误，后来才发现是.net版本问题或者说是写法有问题。。不过最后还是解决了这个坑。