c# ACCESS/SQL 部分实现代码

c# ACCESS/SQL 部分实现代码

  
    

   
     
   
     

   
     //
   
     执行更新类,返回影响行数的操作
   
     

   
     OleDbConnection oconn1 
   
     =
   
      
   
     new
   
      OleDbConnection(
   
     "
   
     Provider=Microsoft.Jet.OleDb.4.0;Data Source=
   
     "
   
      
   
     +
   
      MainForm.MDbFile);


   
     string
   
      Sqlstr 
   
     =
   
      
   
     string
   
     .Format(
   
     "
   
     update clt_list set type='{0}' where id='{1}'
   
     "
   
     , Aphonetype, Aphone);

　　　　
   
     try
   
     
 {
 oconn1.Open();
 OleDbCommand comm1 
   
     =
   
      
   
     new
   
      OleDbCommand(Sqlstr, oconn1);
 
   
     int
   
      res 
   
     =
   
      comm1.ExecuteNonQuery();
 
   
     return
   
      res;
 }
 
   
     catch
   
      { 
   
     return
   
      
   
     0
   
     ; }
 
   
     finally
   
      { oconn1.Close();}


   
     //
   
     查询/读取类,返回reader(习惯称记录集)
   
     

   
     if
   
      (Acoid 
   
     ==
   
      
   
     0
   
      
   
     &&
   
      Alinkmanid 
   
     ==
   
      
   
     0
   
     )
 
   
     return
   
      
   
     new
   
      CallType.PhoneInfo();

 CallType.PhoneInfo pPI 
   
     =
   
      
   
     new
   
      CallType.PhoneInfo();
 List
   
     <
   
     CallType.PhoneInfo.PhoneList
   
     >
   
      phoneList1 
   
     =
   
      
   
     new
   
      List
   
     <
   
     CallType.PhoneInfo.PhoneList
   
     >
   
     ();
 CallType.PhoneInfo.PhoneList tmpList 
   
     =
   
      
   
     new
   
      CallType.PhoneInfo.PhoneList();

 OleDbConnection oconn1 
   
     =
   
      
   
     new
   
      OleDbConnection(
   
     "
   
     Provider=Microsoft.Jet.OleDb.4.0;Data Source=
   
     "
   
      
   
     +
   
      MainForm.MDbFile);
 
   
     try
   
     
 {
 List
   
     <
   
     CallType.wpLoginInfo
   
     >
   
      Userlist 
   
     =
   
      
   
     new
   
      List
   
     <
   
     CallType.wpLoginInfo
   
     >
   
     ();
 
   
     string
   
      wheretext 
   
     =
   
      
   
     ""
   
     ;
 wheretext 
   
     =
   
      wheretext 
   
     +
   
      
   
     "
   
      and co_id=
   
     "
   
      
   
     +
   
      Acoid.ToString(); 
 wheretext 
   
     =
   
      wheretext 
   
     +
   
      
   
     "
   
      and clt_id=
   
     "
   
      
   
     +
   
      Alinkmanid.ToString(); 

 
   
     string
   
      cmdText 
   
     =
   
      
   
     "
   
     select autoid, phone_type,phone from clt_phone_list where phone<>'' 
   
     "
   
      
   
     +
   
      wheretext;
 OleDbCommand odcommand 
   
     =
   
      
   
     new
   
      OleDbCommand(cmdText, oconn1);
 oconn1.Open();
 OleDbDataReader odReader 
   
     =
   
      odcommand.ExecuteReader();
 
   
     while
   
      (odReader.Read())
 { CallType.wpLoginInfo tmpUser 
   
     =
   
      
   
     new
   
      CallType.wpLoginInfo();
 
   
     if
   
      (
   
     !
   
     odReader.IsDBNull(
   
     0
   
     )) { tmpList.PhoneId 
   
     =
   
      odReader.GetInt32(
   
     0
   
     ); }
 
   
     if
   
      (
   
     !
   
     odReader.IsDBNull(
   
     1
   
     )) { tmpList.PhoneType 
   
     =
   
      odReader.GetString(
   
     1
   
     ); }
 
   
     if
   
      (
   
     !
   
     odReader.IsDBNull(
   
     2
   
     )) { tmpList.PhoneNum 
   
     =
   
      odReader.GetString(
   
     2
   
     ); }
 phoneList1.Add(tmpList);
 }
 odReader.Close();
 pPI.Phone 
   
     =
   
      phoneList1;
 
   
     return
   
      pPI ;
 }
 
   
     catch
   
      (Exception)
 {
 
   
     return
   
      pPI;
 }
 
   
     finally
   
     
 {
 oconn1.Close();
 }