Problem setting text property of label

 Hi I am trying to set the text property of label with the value of an attribute from a class. I have added a couple of Msg box functions to the code to see if the values are being populated from the sp and they appear OK. Can somebody give me some guidance to why the labels are not populating with the value?
  Code behind:
 
    Protected Sub item_code_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles item_code.TextChanged

        Dim LookupCode As New Itemlookup

        If item_code.Text <> "" Then

            strItemCode = UCase(item_code.Text)
            strItemCode = Replace(strItemCode, "-", "")
         &nb ...