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 = 1;  

                int colIndex = 0;
               
                //取得标题  
                foreach (DataColumn col in dataTable.Columns)  
                {  
                    colIndex++;  

                    excel.Cells[1, colIndex] = col.ColumnName;
                    Microsoft.Office.Interop.Excel.Range range = workSheet.Range[workSheet.Cells[1, colIndex],workSheet.Cells[1,colIndex]];
                    range.Font.Underline = true;
                }

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

                    colIndex = 0;  

                    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[0], @"D:haoNickDesktop	est.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。