Concatenate 2 strings to make a control name

Hi Experts

How would I concatenate 2 strings to make a form control that I can reference with code.

I have a form with several combo box controls, I want a generic fill routine where I pass in the control name and it gets filled.

Here is my routine:

    Private Sub Lookup_Fill(ByVal strType As String)

        Dim lf As New clsLookups
        Dim dt As DataTable = lf.DoLookup(strType)

        Dim FormControl = strType
        With FormControl
           .DataSource = dt
            .DisplayMember = "LookUpValue"
            .SelectedIndex = 0
        End With

    End Sub

This is how I call:
 Lookup_Fill("Status")

I pass the variable into a proc that return a list (That works OK) I hit a problem when I try to refernce the form control (as a string I guess)

How do  do this?