OpenEuphoria

Re: Matt re:setListviewIndex

• Posted by Derek Parnell <ddparnell at bigpond.com> Jul 30, 2001
• 375 views

Couldn't one just create a ListView with LVS_SINGLESEL style? Would that
work?

  MyLV = create(ListView,..., LVS_SINGLESEL)

----
Derek.

----- Original Message -----
From: "Matthew Lewis" <matthewwalkerlewis at YAHOO.COM>
To: "EUforum" <EUforum at topica.com>
Subject: Re: Matt re:setListviewIndex


>
> ----- Original Message -----
> From: "Tony Steward" <figjam at nlc.net.au>
>
> > Hi Matt or anyone who can help,
> > Matt sent me the routine below so I could set the index of a listview,
> > which works well thanks thankyou. At the moment when you set one index
that
> > index is made visible and highlighted. If you then set a second index
both
> > are highlighted. I would prefer that when an index is set that the
previous
> > selection be cleared. Is this possible.
>
> You're correct.  That code only changes the status of the item you've
> specified, but doesn't 'unselect' the currently selected item(s).  I'm not
> certain when I sent that to you, but in my copy of .55, I've modified
setIndex
> (did it on 1/26/01):
>
> I added integers:
> integer msg,
> -- added for listview:
>     start, check, ix, count
>
> and added an elsif clause that cycles through the listview and
> deselects/selects as appropriate.  It might be faster for larger listviews
to
> merely get the selected group of items and deselect those, then selecting
your
> list.
>
> elsif window_type[id] = ListView then
>
>     if atom( index ) then
>         index = { index }
>     end if
>
>     start = 0
>
>     result = struct_LVITEM( LVIF_STATE, start, 0, 0,
>         LVIS_SELECTED, 0, 0, 0 )
>
>     store( result, LVITEM_stateMask, LVIS_SELECTED )
>     count = sendMessage( id, LVM_GETITEMCOUNT, 0, 0)
>     while count do
>
>         ix = getLVItemlParam( id, start )
>         if find( ix, index ) then
>             store( result, LVITEM_state, LVIS_SELECTED )
>         else
>             store( result, LVITEM_state, 0 )
>         end if
>
>         VOID = sendMessage( id, LVM_SETITEMSTATE, start, result )
>         start += 1
>         count -= 1
>     end while
>
>     -- release the structure from memory
>     ix = new_memset()
>     manage_mem( ix, result )
>     release_mem( ix )
>     return
>
>
> =====
> Matt Lewis
> http://www14.brinkster.com/matthewlewis
>
>