VB中的数据库编程-Vb的ADO与DAO.ppt

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * rstemp.Close mysql = insert into titles (书籍编号,所属主题,作者,书籍名称,价格,数量) values ( mysql = mysql + Text1(0).Text + , mysql = mysql + Text1(1).Text + , mysql = mysql + Text1(2).Text + , mysql = mysql + Text1(3).Text + , mysql = mysql + Text1(4).Text + , mysql = mysql + Text1(5).Text + ) cnn.Execute mysql MsgBox 保存成功！“ 6.5.5 ADO对象编程 Case 1 Text1(0).Locked = True 书籍编号是主键，不能改 mysql = update Titles set 所属主题= +  Text1(1).Text + ,作者= mysql = mysql + Text1(2).Text + ,书籍名称= mysql = mysql + Text1(3).Text + ,价格= mysql = mysql + Text1(4).Text + ,数量= mysql = mysql + Text1(5).Text + where 书籍编号= + Text1(0).Text + “ MsgBox 修改完毕！ Text1(0).Locked = False edirf = 0 End Select 6.5.5 ADO对象编程 For i = 0 To 5 Text1(i).Enabled = False Next i cmdsave.Enabled = False cmdcancel.Enabled = False cmdadd.Enabled = True cmdedit.Enabled = True cmddelete.Enabled = True cmdmove(0).Enabled = True cmdmove(1).Enabled = True cmdmove(2).Enabled = True cmdmove(3).Enabled = TrueEnd Sub 6.5.5 ADO对象编程 Private Sub cmdmove_Click(Index As Integer) 记录指针移动 On Error Resume Next Select Case Index Case 0 rs.MoveFirst Case 1 rs.MovePrevious If rs.BOF Then rs.MoveFirst Case 2 rs.MoveNext If rs.EOF Then rs.MoveLast 6.5.5 ADO对象编程 Case 3 rs.MoveLast End Select Call viewdataEnd SubPrivate Sub cmdExit_Click() Unload MeEnd Sub 进入 * * * * * * * * * * * * * * * * * * * * * * * * * * * 6.5.5 ADO对象编程 Private Sub cmdcancel_Click() 放弃修改 Adodc1.Recordset.CancelUpdateFor i = 0 To 5 Text1(i).Enabled = False Next i cmdsave.Enabled = False cmdcancel.Enabled = False cmdadd.Enabled = True cmdedit.Enabled = True cmddelete.Enabled = True 6.5.5 ADO对象编程 cmdmove(0).Enabled = True cmdmove(1).Enabled = True cmdmove(2).Enabled = True cmdmove(3).Enabled = TrueEnd Sub 6.5.5 ADO对象编程