ใช้ User และ password ที่กรอก connect database ใน webconfig ต้องเขียนแบบไหนค่ะ

Private Sub LoadCarData()
        Try
            Dim strLoad As String
            strLoad = "----คำสั่ง SQL----"
            daCar = New SqlDataAdapter(strLoad, [color=green]sysconfig)
            Dim dt As New DataTable
            daCar.Fill(dt)
            gvCarData.DataSource = dt
            gvCarData.DataBind()
        Catch ex As Exception
            gvCarData.EmptyDataText = "Load data fail."
        End Try
    End Sub

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
     LoadCarData()
End Sub

 Protected Sub btLoad_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles btLoad.Click
         LoadCarData()
  End Sub