access 动态代码链接sql 数据库

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Public Function saConnect(ByVal strServer As String, ByVal strDatabase As String, _
ByVal strUsername As String, ByVal strPassword As String) As Boolean
 
On Error GoTo err

Connect:
Dim strCn As String

strCn = "PROVIDER=SQLOLEDB.1;"

'strCn = strCn & "Workstation Id = HY"
strCn = strCn & "DATA SOURCE=" & strServer & ";"              '服务器
strCn = strCn & "INITIAL CATALOG=" & strDatabase & ";"       '数据库
strCn = strCn & "USER ID=" & strUsername & ";"                              '用户名
strCn = strCn & "PASSWORD=" & strPassword & ";"                               '密码

strCn = strCn & "PERSIST SECURITY INFO=TRUE;"
strCn = strCn & "Use Procedure for Prepare=1;"
strCn = strCn & "Auto Translate=True;"
strCn = strCn & "Packet Size=4096;"

'Debug.Print strCn
CurrentProject.OpenConnection strCn
 
i = True
 
theConnect = True

Exit Function

err:
i = False
MsgBox "错误代码: " & err.Number & vbCrLf & vbCrLf & _
"错误描述: " & err.Description, vbCritical + vbOKOnly, theTitle

 

End Function

 

----调用 参数传进去

Private Sub Command0_Click()
Dim str As String
If CS(Me.Server) = "" Then
MsgBox "服务器名称不可为空,请输入!", vbCritical, 登录错误
Exit Sub
End If
If CS(Me.Database) = "" Then
MsgBox "数据库名称不可为空,请输入!", vbCritical, 登录错误
Exit Sub
End If
If CS(Me.Username) = "" Then
MsgBox "用户名不可为空,请输入!", vbCritical, 登录错误
Exit Sub
End If
If CS(Me.Password) = "" Then
MsgBox "密码不可为空,请输入!", vbCritical, 登录错误
Exit Sub
End If
Call saConnect(Me.Server, Me.Database, Me.Username, Me.Password)
If i = True Then
UServer = Me.Server
Udatebase = Me.Database
DoCmd.Close acForm, Me.name
DoCmd.OpenForm "A-SQLserver", acNormal, , , , acWindowNormal
Forms![A-SQLserver].Label9.Caption = "Server: " + UServer
Forms![A-SQLserver].Label12.Caption = "Datebase: " + Udatebase
Else
End If

 End Sub