Help with drop down list

[bbesase]

I have this code for my drop down list on my webpage but its not returning any information. Can someone please help me out?

 Sub getRimTypeTW()

        Dim ss As New SQL
        Dim da As DataAccess
        Dim dt As New DataTable

        dt = da.returnDataTable(ss.ddlRimTypeData)
        Me.ddlRimType.DataSource = dt
        Me.ddlRimType.DataTextField = "RIM_TYPE"
        Me.ddlRimType.DataValueField = "IDENTIFIER"
        Me.ddlRimType.DataBind()

    End Sub