VB6 用ADO连接mysql解决方法
VB6 用ADO连接mysql
上面是代码,我就测试这个方法,第一次连接是成功的,当我再次调用这个方法是,提示对象已打开,不允许操作,问题我上面有关闭的代码啊,为什么还提示打开了,我都没用rs,
------解决方案--------------------
ByVal gcnmysql1 As ADODB.Connection这里有问题
Public Function MysqlDataOpen(ByVal gcnmysql1 As ADODB.Connection, ByVal server As String, ByVal port As String, ByVal username As String, ByVal pwd As String, ByVal database As String) As Boolean
On Error Resume Next
DoEvents
With gcnmysql1
.Provider = "MSDASQL"
If .State = adStateOpen Then
.Close
End If
MsgBox .State
.ConnectionString = "driver={mysql odbc 5.1 driver};server=" & server & ";port=" & port & ";uid=" & username & ";pwd=" & pwd & ";database=" & database & ";OPTION=3"
.Open
If Err <> 0 Then
MsgBox "连接失败！（请确保用户名与密码输入无误）", vbInformation, "数据库连接"
MsgBox Err.Description
Exit Function
End If
End With
MysqlDataOpen = True
End Function
上面是代码,我就测试这个方法,第一次连接是成功的,当我再次调用这个方法是,提示对象已打开,不允许操作,问题我上面有关闭的代码啊,为什么还提示打开了,我都没用rs,
------解决方案--------------------
ByVal gcnmysql1 As ADODB.Connection这里有问题