[转载]DataSet导入到Excel文件

/// <summary>
    /// 将数据导入到Excel
    /// </summary>
    /// <param name="ds">
    /// 需要生成Excel的数据源
    /// DataSet->DataTable->TableName为页（Sheet）名字
    /// DataTable->Column->ColumnName为列名
    /// </param>
    /// <param name="strFilenamePath">生成后文件保存的全路径</param>
    /// <returns></returns>
    public bool ImportToExcel(DataSet ds, string strFilenamePath)
    {
        if (ds.Tables.Count == 0)
            return false;

        try
        {
            Microsoft.Office.Interop.Excel.ApplicationClass objApp = new Microsoft.Office.Interop.Excel.ApplicationClass();
            Microsoft.Office.Interop.Excel._Workbook objWorkbook;//工作薄
            Microsoft.Office.Interop.Excel._Worksheet objWorksheet;//工作页
            objWorkbook = objApp.Workbooks.Add(true);

            object objMissing = System.Reflection.Missing.Value;

            #region 添加数据

            for (int i = 0; i < ds.Tables.Count; i++)
            {
                objWorksheet = (Microsoft.Office.Interop.Excel._Worksheet)objWorkbook.ActiveSheet;

                //书签名字为表名
                objWorksheet.Name = ds.Tables[i].TableName;

                //第一行显示表的列名
                for (int j = 0; j < ds.Tables[i].Columns.Count; j++)
                {
                    objApp.Cells[1, j + 1] = ds.Tables[i].Columns[j].ColumnName;
                }

                //正文内容，从第二行开始
                for (int rows = 0; rows < ds.Tables[i].Rows.Count; rows++)
                {
                    for (int cols = 0; cols < ds.Tables[i].Columns.Count; cols++)
                    {
                        objApp.Cells[rows + 2, cols + 1] = ds.Tables[i].Rows[rows][cols].ToString();
                    }
                }

                if (i < ds.Tables.Count - 1)
                {
                    objApp.Sheets.Add(objMissing, objMissing, 1, Microsoft.Office.Interop.Excel.XlSheetType.xlWorksheet);
                }
            }

            #endregion

            objApp.Visible = true;

            //将Excel保存到指定路径
            objWorkbook.SaveAs(
                strFilenamePath, objMissing, objMissing, objMissing, objMissing,
                objMissing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlShared, objMissing,
                objMissing, objMissing, objMissing, objMissing);

            objApp.Quit();

            return true;
        }
        catch (Exception ex)
        {
            string strEXMessage = ex.Message;

            return false;
        }
    }