form1.frm

visual basic 6 与sql连接的几个例子

         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   960
      TabIndex        =   1
      Text            =   "TxtSno"
      Top             =   120
      Width           =   1455
   End
   Begin MSAdodcLib.Adodc AdodcStudent 
      Height          =   375
      Left            =   1560
      Top             =   3480
      Visible         =   0   'False
      Width           =   2415
      _ExtentX        =   4260
      _ExtentY        =   661
      ConnectMode     =   0
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   3
      LockType        =   3
      CommandType     =   2
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   0
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   1
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=学生管理数据库;Data Source=(local)"
      OLEDBString     =   "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=学生管理数据库;Data Source=(local)"
      OLEDBFile       =   ""
      DataSourceName  =   ""
      OtherAttributes =   ""
      UserName        =   "sa"
      Password        =   ""
      RecordSource    =   "Student"
      Caption         =   "AdodcStudent"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      _Version        =   393216
   End
   Begin VB.Label Label5 
      Caption         =   "所在系"
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   375
      Left            =   2760
      TabIndex        =   7
      Top             =   840
      Width           =   975
   End
   Begin VB.Label Label4 
      Caption         =   "年龄"
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   375
      Left            =   3000
      TabIndex        =   6
      Top             =   240
      Width           =   735
   End
   Begin VB.Label Label3 
      Caption         =   "性别"
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   375
      Left            =   240
      TabIndex        =   3
      Top             =   1440
      Width           =   735
   End
   Begin VB.Label Label2 
      Caption         =   "姓名"
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   375
      Left            =   240
      TabIndex        =   2
      Top             =   840
      Width           =   735
   End
   Begin VB.Label Label1 
      Caption         =   "学号"
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   375
      Left            =   240
      TabIndex        =   0
      Top             =   240
      Width           =   735
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub CmdAdd_Click()        ' “添加”命令按钮
  AdodcStudent.Recordset.AddNew
  
  '使“添加”和“删除”按钮为不可用状态
  CmdAdd.Enabled = False
  CmdDel.Enabled = False
  
  '使“更改”和“取消”按钮为可用状态
  CmdUpdate.Enabled = True
  CmdCancel.Enabled = True
End Sub

Private Sub CmdCancel_Click()       ' “取消”命令按钮
  AdodcStudent.Recordset.CancelUpdate
  
  '使“添加”和“删除”按钮为可用状态
  CmdAdd.Enabled = True
  CmdDel.Enabled = True
  
  '使“取消”按钮为不可用状态
  CmdCancel.Enabled = False
  
End Sub

Private Sub CmdDel_Click()         ' “删除”命令按钮
  Dim res As Integer
  res = MsgBox("确实要删除此行记录吗？", _
               vbExclamation + vbYesNo + vbDefaultButton2)  '提示用户
  If res = vbYes Then             '如果确实要删除
    AdodcStudent.Recordset.Delete
    AdodcStudent.Recordset.MoveNext
    If AdodcStudent.Recordset.EOF = True Then
      AdodcStudent.Recordset.MoveLast
    End If
  End If

End Sub

Private Sub CmdExit_Click()     ' “退出”命令按钮
  End
End Sub

Private Sub CmdFirst_Click()    ' “第一条”命令按钮
  AdodcStudent.Recordset.MoveFirst
End Sub

Private Sub CmdLast_Click()     ' “末一条”命令按钮
  AdodcStudent.Recordset.MoveLast
End Sub

Private Sub CmdNext_Click()     ' “下一条”命令按钮
  AdodcStudent.Recordset.MoveNext
  If AdodcStudent.Recordset.EOF = True Then
    '如果已经移到了最后一行之后，则将指针定位在最后一行
    AdodcStudent.Recordset.MoveLast
  End If
End Sub

Private Sub CmdPrevious_Click()   ' “上一条”命令按钮
  AdodcStudent.Recordset.MovePrevious
  If AdodcStudent.Recordset.BOF = True Then
    '如果已经移到了第一行之前，则将指针定位在第一行
    AdodcStudent.Recordset.MoveFirst
  End If
End Sub

Private Sub CmdUpdate_Click()      ' “更新”命令按钮
  '将文本框中的当前值写入结果集相应字段中
  AdodcStudent.Recordset.Fields("Sno") = Trim(TxtSno.Text)
  AdodcStudent.Recordset.Fields("Sname") = Trim(TxtSname.Text)
  AdodcStudent.Recordset.Fields("Ssex") = Trim(TxtSsex.Text)
  AdodcStudent.Recordset.Fields("Sage") = CInt(Trim(TxtSage.Text))
  AdodcStudent.Recordset.Fields("Sdept") = Trim(TxtSdept.Text)
  
  '使更新生效
  AdodcStudent.Recordset.Update
  
   '使“添加”和“删除”按钮为可用状态
  CmdAdd.Enabled = True
  CmdDel.Enabled = True
  
  '使“取消”按钮为不可用状态
  CmdCancel.Enabled = False
End Sub

Private Sub Form_Load()
 
  '初始时使“取消”按钮为不可用状态
  CmdCancel.Enabled = False
End Sub