เชื่อมต่อ mysql ในไฟล Global.asax ได้รึเปล่าครับ แบบว่า php เคยใช้วิธี include อะครับ

Imports System.Data
Imports MySql.Data.MySqlClient
Imports System.Configuration
Public Class clsDatabase
    Private objConn As MySqlConnection
    Private objCmd As MySqlCommand
    Private Trans As MySqlTransaction
    Private strConnString As String

    Public Sub New()
        strConnString = System.Configuration.ConfigurationSettings.AppSettings("ConnectionString")
    End Sub

    Public Function QueryDataReader(ByVal strSQL As String) As MySqlDataReader
        Dim dtReader As MySqlDataReader
        objConn = New MySqlConnection
        With objConn
            .ConnectionString = strConnString
            .Open()
        End With
        objCmd = New MySqlCommand(strSQL, objConn)
        dtReader = objCmd.ExecuteReader()
        Return dtReader '*** Return DataReader ***'
    End Function