DataSet을 Excel로 가져오고 여러 DataTable를 여러 Sheet으로 나누며 Sheet은 TableName

        #region  DataSet   Excel ，  DataTable    Sheet,Sheet TableName  (  Microsoft.Office.Interop.Excel 11.0)

        /// <summary>

        /// DataSet   Excel ，  DataTable    Sheet,Sheet  TableName  

        /// </summary>

        /// <param name="DS">    Excel</param>

        /// <param name="FilePathAndName">          </param>

        public static void DataSetToExcel(DataSet DS, string FilePathAndName)

        {

            string strName = FilePathAndName.Replace(@"\\", @"\").Replace(@"\\", @"\").Replace(@"\\", @"\");

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

            try

            {

                excel.Visible = false;

                //                 

                excel.DisplayAlerts = false;

                excel.AlertBeforeOverwriting = false;

                //       

                Microsoft.Office.Interop.Excel.Workbook book = excel.Workbooks.Add(true);

                System.Reflection.Missing miss = System.Reflection.Missing.Value;

                //     

                Microsoft.Office.Interop.Excel.Worksheet sheets = (Microsoft.Office.Interop.Excel.Worksheet)

                    book.Worksheets.Add(miss, miss, 19, Microsoft.Office.Interop.Excel.XlSheetType.xlWorksheet);

                for (int i = 0; i < DS.Tables.Count; i++)

                {

                    System.Data.DataTable table = DS.Tables[i];

                    //       

                    //Microsoft.Office.Interop.Excel.Worksheet sheet = book.Worksheets[i + 1] as Microsoft.Office.Interop.Excel.Worksheet;



                    Microsoft.Office.Interop.Excel.Worksheet sheet = book.Worksheets.Add(book.Worksheets[i + 1], Type.Missing, Type.Missing, Type.Missing) as Microsoft.Office.Interop.Excel.Worksheet;

                    int rowIndex = 1;

                    int colIndex = 0;

                    foreach (DataColumn col in table.Columns)

                    {

                        colIndex++;

                        sheet.Cells[1, colIndex] = col.ColumnName;

                    }

                    foreach (DataRow row in table.Rows)

                    {

                        rowIndex++;

                        colIndex = 0;

                        foreach (DataColumn col in table.Columns)

                        {

                            colIndex++;

                            sheet.Cells[rowIndex, colIndex] = row[col.ColumnName].ToString();

                        }

                    }

                    //sheet.Name = tableNames[i];

                    sheet.Name = Common.GetLegalFileName(DS.Tables[i].TableName.ToString());

                }

                //    Sheet

                for (int g = 1; g <= book.Worksheets.Count; g++)

                {

                    Microsoft.Office.Interop.Excel.Worksheet sheet = book.Worksheets[g] as Microsoft.Office.Interop.Excel.Worksheet;



                    if (sheet.Name.Length > 5 && sheet.Name.Substring(0, 5) == "Sheet")

                    {

                        sheet.Delete();

                        g--;

                    }

                }

                //book.Save();

                book.SaveAs(strName, Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookNormal, Type.Missing,

                    Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive,

                    Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

                book.Close(false, miss, miss);

                book = null;

            }

            catch (Exception)

            {

                throw;

            }

            finally

            {

                KillExcelProcess(excel);//  Excel                  

                GC.WaitForPendingFinalizers();

                GC.Collect();

            }

        }



        //using System.Runtime.InteropServices;

        [DllImport("user32.dll", SetLastError = true)]

        static extern int GetWindowThreadProcessId(IntPtr hWnd, out int lpdwProcessId);



        /// <summary>

        /// kill the excel.exe Process

        /// </summary>

        private static void KillExcelProcess(Microsoft.Office.Interop.Excel.Application _ApplicationClass)

        {

            try

            {

                if (_ApplicationClass != null)

                {

                    int lpdwProcessId;

                    GetWindowThreadProcessId(new IntPtr(_ApplicationClass.Hwnd), out lpdwProcessId);

                    System.Diagnostics.Process.GetProcessById(lpdwProcessId).Kill();

                }

            }

            catch (Exception ex)

            {

                //ErrorLogManager.Log("Kill Excel Process", ex.Source, ex.StackTrace);



            }

        }



        



        #endregion

ataSet ds = new DataSet();



            string sql = "select top 5  * from Table_Table1";

            SqlDbHelper db = new SqlDbHelper();

            ds.Tables.Add(db.GetDataTable(sql));



            string sqlB = "select top 5  * from Table_Table2";

            ds.Tables.Add(db.GetDataTable(sqlB));



            string FilePathAndName = Server.MapPath("Temp.xls");

            DataSetToExcel(ds, FilePathAndName);