form1.frm

ADO对象通过OLE DB连接Access 数据库+密码

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "ADO对象通过OLE DB连接Access"
   ClientHeight    =   1710
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4755
   LinkTopic       =   "Form1"
   ScaleHeight     =   1710
   ScaleWidth      =   4755
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton cmdConn 
      Caption         =   "连接数据库"
      Height          =   375
      Left            =   3360
      TabIndex        =   4
      Top             =   1200
      Width           =   1215
   End
   Begin VB.TextBox txtPassword 
      Height          =   270
      IMEMode         =   3  'DISABLE
      Left            =   1320
      PasswordChar    =   "*"
      TabIndex        =   3
      Top             =   720
      Width           =   2175
   End
   Begin VB.TextBox txtDBName 
      Height          =   270
      Left            =   1320
      TabIndex        =   1
      Top             =   240
      Width           =   3255
   End
   Begin VB.Label Label3 
      Caption         =   "密码："
      Height          =   255
      Left            =   240
      TabIndex        =   2
      Top             =   720
      Width           =   1095
   End
   Begin VB.Label Label1 
      Caption         =   "数据库："
      Height          =   255
      Left            =   240
      TabIndex        =   0
      Top             =   240
      Width           =   1095
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim ConnX As ADODB.Connection
Private Sub cmdConn_Click()
    '生成连接字符串
    If txtPassword.Text = "" Then
        '数据库没有密码
        ConnX.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0" & _
                            ";Data Source=" & txtDBName.Text
    Else
        '数据库有密码
        ConnX.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0" & _
                            ";Data Source=" & txtDBName.Text & _
                            ";Jet OLEDB:Database Password=" & txtPassword.Text
    End If
On Error GoTo ConnErr
    '连接数据库
    ConnX.Open
    MsgBox "连接数据库成功！", vbInformation, "连接"
    Exit Sub
ConnErr:
    MsgBox "连接数据库错误！", vbInformation, "连接"
    
End Sub
Private Sub Form_Load()
    Set ConnX = New Connection
End Sub
Private Sub Form_Unload(Cancel As Integer)
    
    Set ConnX = Nothing
End Sub