Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

■ The following properties are read-only at both design time
  and run time:
 
  Property       Object
  ═════════════  ═════════════════════════════════════════════
  ActiveControl  Any control
  ActiveForm     Form
  Height         Combo box (Style = 1), drive list box, and
                 PRINTER
  Left(1)        Form when attached scroll bars are present
  List           Directory list box, drive list box, and file
                 list box
  ListCount      Combo box, directory list box, drive list
                 box, file list box, and list box
  Parent         Any control
  Text           Combo box (Style = 2), and list box
  Top(1)         Form when attached scroll bars are present
  Width          PRINTER
  ───────────────────────────────────────────────────────────
  (1) Left and Top are read-only at run time only when the
  implied form contains attached scroll bars (that is, when
  Attached = True).
 
■ Possible solution:
 
  • Change the property reference to read the value rather
    than set it.
 
■ If you need additional help, move the cursor to a keyword
  and press F1 to open the Help window.