ACCESS - Need to tweak 2 lines of code to cater for Numerical Data

[barton]

Here is the total code.

Dim strGenre As String
    Dim strPlatform As String
    Dim strFilter As String
    'if the value in this combo box is null, then show all records
    If IsNull(Me.cboGenre.Value) Then
        strGenre = "Like '*'"
    Else
        strGenre = "='" & Me.cboGenre.Value & "'"
    End If
     'if the value in this combo box is null, then show all records
    If IsNull(Me.cboPlatform.Value) Then
        strPlatform = "Like '*'"
    Else
        strPlatform = "='" & Me.cboPlatform.Value & "'"
    End If
    'combining criteria to form a WHERE clause
strFilter = "[Genre] " & strGenre & " AND [Platform] " & strPlatform
    
    With Reports![rptTopRented]
         .Filter = strFilter
         .FilterOn = True
    End With

The bit I want to change to allow the numerical data is:

Else
        strPlatform = "=' " & Me.cboPlatform.Value & " ' "
    End If

The combo box names 'cboPlatform' is a list of Number ID's. And since currently its interperated as text, I've been told to maybe adjust or take out the qualifiers (I dont know what a qualifier is) in that bit of code to cater for numerical data.

Also, I have a code, where, I want select a field (which has numbers too) and simply show ONLY the HIGHLEST value. What do I need to add to this code in order to do this?

strFilter = "[Genre] " & strGenre & " AND [Platform] " & strPlatform

help ASAP appreciated. Project due tommorro!