Not sure if this is the correct place for this question. I created a module for handling connect and disconnect actions to my database. The reason was to prevent from having to put the same 20+ lines of code in each button action or form that queried the db. This way I can call the DbConnect, handle my db business, the call the DbDisconnect. Here is my module so far:

Code:
Friend Module Connections
    Public Sub DbConnect()
        Using conn As New MySql.Data.MySqlClient.MySqlConnection
            Try

                Dim myConnectionString As String = "server=127.0.0.1;" _
                    & "uid=root;" _
                    & "pwd=12345;" _
                    & "database=test"
                conn.ConnectionString = myConnectionString
                conn.Open()

            Catch ex As MySql.Data.MySqlClient.MySqlException
                MessageBox.Show(ex.Message)
            End Try
        End Using
    End Sub

    Public Sub DbDisconnect()

    End Sub
End Module
The question is how do I reference conn in the DbDisconnect in order to .close and .dispose the connection? As a side question, is it OK to do it this way? My reasoning was that if I ever had to change my connection string, it was only in one place.

Thanks for any assistance or recommendations.
(VS 2019, MySQL 8.0)