[C#]读取不同版本的excel文件的方法

--------------------------------2007及以上的版本--------------------------------

测试如下：

         //DataInterface.Method
         /// <summary>
         /// 读取2007版本excel
         /// </summary>
         /// <param name="filePath">文件路径</param>
         /// <returns>返回一个表</returns>
         public System.Data.DataTable GetExcel2007(string filePath)
         {
             try
             {
                 string strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filePath + ";Extended Properties=\"Excel 12.0;HDR=NO;IMEX =1\"";

                 OleDbConnection conn = new OleDbConnection(strConn);
                 conn.Open();
                 System.Data.DataTable schemaTable = conn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, null);
                 //获取Excel文件中第一个（按字母排序的）sheet页的页名。
                 string tableName = schemaTable.Rows[][].ToString().Trim();

                 string strExcel = "SELECT  * FROM [" + tableName + "]";
                 OleDbDataAdapter myCommand = null;
                 myCommand = new OleDbDataAdapter(strExcel, strConn);
                 DataSet ds = new DataSet();
                 myCommand.Fill(ds, "dtSource");
                 System.Data.DataTable table = ds.Tables["dtSource"];
                 conn.Close();
                 return table;
             }
             catch
             {
                 return null;
             }
         }

--------------------------------2007以下的版本--------------------------------

测试如下：

 /// <summary>
         /// 读取2003版本excel
         /// </summary>
         /// <param name="filePath"></param>
         /// <returns></returns>
         public System.Data.DataTable GetExcel2003(string filePath)
         {
             //读取OMR结果文件(xls)数据
             try
             {
         //由于windows系统的更新，无法正常使用此strConn
         //如果继续想用请对系统更新的补丁卸载即可
                 //string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + xlsPath + 

 ";Extended Properties=\"Excel 8.0;HDR=YES;IMEX=1\"";
         //也可以使用以下strConn
                 string strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filePath + 

 ";Extended Properties=\"Excel 8.0;HDR=NO;IMEX=1\"";
                 OleDbConnection conn = new OleDbConnection(strConn);
                 conn.Open();
                 System.Data.DataTable schemaTable = conn.GetOleDbSchemaTable

 (System.Data.OleDb.OleDbSchemaGuid.Tables, null);
                 //获取Excel文件中第一个(按字母排序的)sheet页的页名。
                 string tableName = schemaTable.Rows[][].ToString().Trim();

                 string strExcel = "SELECT  * FROM [" + tableName + "]";
                 OleDbDataAdapter myCommand = null;
                 myCommand = new OleDbDataAdapter(strExcel, strConn);
                 DataSet ds = new DataSet();
                 myCommand.Fill(ds, "dtSource");
                 System.Data.DataTable table = ds.Tables["dtSource"];
                 conn.Close();
                 return table;
             }
             catch
             {
                 return null;
             }
         }