.Net读取Excel(包括Excel2007)

时间：2010-11-17 来源：JangoJing

出现没有配置OleDb.12.0 什么的错误具体提示忘记了~~

就去下载这个:AccessDatabaseEngine.exe

下载地址:

http://download.microsoft.com/download/7/0/3/703ffbcb-dc0c-4e19-b0da-1463960fdcdb/AccessDatabaseEngine.exe

        /// <summary>
        ///根据Excel物理路径、表名(Sheet名)获取数据集

         /// </summary>
        /// <param name="FileFullPath">Excel物理路径param>
        /// <param name="SheetName">表名(Sheet名) 示例"Sheet1$"</param>
        /// <returns>DataTable</returns>
        public static System.Data.DataTable GetExcelToDataTableBySheet(string FileFullPath, string SheetName)
        {
            //string strConn = "Provider=Microsoft.Jet.OleDb.4.0;" + "data source=" + FileFullPath + ";Extended Properties='Excel 8.0; HDR=NO; IMEX=1'"; //此连接只能操作Excel2007之前(.xls)文件
            string strConn = "Provider=Microsoft.Ace.OleDb.12.0;" + "data source=" + FileFullPath + ";Extended Properties='Excel 12.0; HDR=1; IMEX=1'"; //此连接可以操作xls与.xlsx文件
            OleDbConnection conn = new OleDbConnection(strConn);
            conn.Open();
            DataSet ds = new DataSet();
            OleDbDataAdapter odda = new OleDbDataAdapter(string.Format("SELECT * FROM [{0}]", SheetName), conn);                    //("select * from [Sheet1$]", conn);
            odda.Fill(ds, SheetName);
            conn.Close();
            return ds.Tables[0];

        }

         /// <summary>
         /// 根据YExcel物理路径获取Excel文件中所有表名
           /// </summary>
         /// <param name="excelFile">Excel物理路径</param>
         /// <returns>String数组</returns>
        public static String[] GetExcelSheetNames(string excelFile)
        {
            OleDbConnection objConn = null;
            System.Data.DataTable dt = null;

            try
            {
                //string strConn = "Provider=Microsoft.Jet.OleDb.4.0;" + "data source=" + excelFile + ";Extended Properties='Excel 8.0; HDR=NO; IMEX=1'"; //此连接只能操作Excel2007之前(.xls)文件

                string strConn = "Provider=Microsoft.Ace.OleDb.12.0;" + "data source=" + excelFile + ";Extended Properties='Excel 12.0; HDR=NO; IMEX=1'"; //此连接可以操作xls与.xlsx文件


                objConn = new OleDbConnection(strConn);
                objConn.Open();
                dt = objConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
                if (dt == null)
                {
                    return null;
                }
                String[] excelSheets = new String[dt.Rows.Count];
                int i = 0;
                foreach (DataRow row in dt.Rows)
                {
                    excelSheets[i] = row["TABLE_NAME"].ToString();
                    i++;
                }

                return excelSheets;
            }
            catch
            {
                return null;
            }
            finally
            {
                if (objConn != null)
                {
                    objConn.Close();
                    objConn.Dispose();
                }
                if (dt != null)
                {
                    dt.Dispose();
                }
            }
        }