How do I target records on an Access form that meet certain criteria?

I have a form on which I want to do something in records that meet certain criteria.  In my test code below, I loop through the recordset for the form, but my code sets the values for every record to the values appropriate to the first record.  The code below sets Text304 on every record to True if "rst!DateEntered > #9/27/2018 9:02:36 AM#" is true for the first record and every record to false otherwise.

Right now I'm just writing to a text field to diagnose the problem, but what I want to do is to make a field on certain records editable. How do I do that?



Private Sub Form_Load()

    Me.txtTitle.SetFocus
    Dim rst As DAO.Recordset
    Dim fld As Field
 
    Set rst = Me.Recordset
    Do While Not rst.EOF
        If rst!DateEntered > #9/27/2018 9:02:36 AM# Then
            Text304 = "True"
        Else
            Text304 = "False"
        End If
        rst.MoveNext
    Loop
    Me.Refresh
   
End Sub