DataTable數據導入Excel

using Microsoft.Office.Interop.Excel; 引用命名空間

 

public bool DataToExcel(System.Data.DataTable dataTable)
       {
		 Application excel = new Application();
           try
           {
               object missingValue = Missing.Value;              
               excel.Visible = false;
               _Workbook workBook = excel.Workbooks.Add(missingValue);
		//加入模板可這樣寫
		//string path = AppDomain.CurrentDomain.BaseDirectory;
                // _Workbook workBook = excel.Workbooks.Add(path+"\\App_Data\\MJ_Template.xlsx");
                // _Worksheet sheet = workBook.Worksheets[1];//下面excel對象改成sheet就行
               int excelRow =0;
               int excelColumn = 0;
               for (int rowIndex = 0; rowIndex <dataTable.Rows.Count; rowIndex++)
               {
                   for (int columnIndex = 0; columnIndex<dataTable.Columns.Count; columnIndex++)
                   {
                        excelRow = rowIndex + 1;
                        excelColumn = columnIndex + 1;
                        if (excelRow == 1)
                        {
                            excel.Cells[excelRow, excelColumn] = dataTable.Columns[columnIndex].ColumnName;//load 表頭
                        }
                        else
                        {                           
                            excel.Cells[excelRow, excelColumn] = dataTable.Rows[rowIndex][columnIndex];
                        }                 
                   }
               }
               workBook.SaveAs(@"D:\ExcelTable.xls", missingValue, null, null,false, false, XlSaveAsAccessMode.xlNoChange, null, null, null,null);
               workBook.Close(false, missingValue, missingValue);
               excel.Quit();
               return true;
           }
           catch(Exception exception)
           {
                return false;
           }
      finally
      {
          excel.Quit();
      }		
  }