Print Page - Listbox selection

Title: Listbox selection
Post by: ckoehn on January 16, 2010, 06:11:47 PM

Is it possible to programaticaly remove a selection on an item in a listbox control? There is a SETSELECTED but no DESELECTITEM.

Thanks

Title: Re: Listbox selection
Post by: LarryMc on January 16, 2010, 06:18:15 PM

Use the SETSELECTED command with a position of -1

Larry

Title: Re: Listbox selection
Post by: ckoehn on January 16, 2010, 06:30:28 PM

Thanks Larry. I appreciate your help.

Title: Re: Listbox selection
Post by: ckoehn on January 16, 2010, 06:37:39 PM

Sorry Larry. Setting it to -1 doesn't work. Here is my list settings. It is a multi-selection list box.

I used: SETSELECTED win,2,-1

QuoteCONTROL win,@LISTBOX,"",370,tHeight*2,180,60,@TABSTOP|@CTLISTEXTENDED|@VSCROLL|@CTLISTNOTIFY|@CTLISTSORT,2

Title: Re: Listbox selection
Post by: LarryMc on January 16, 2010, 07:04:04 PM

Went back to the SDk and it states that what I told you to do will not work when you have the multiselect flag set.

The only thing I would know to do is delete all the items in the listbox and then reload it.

I've done it before but right now I don't know where a copy of the program I did it in is located.

Larry

Title: Re: Listbox selection
Post by: LarryMc on January 16, 2010, 07:12:55 PM

Use this to clear out your listbox:

Code Select

CONST LB_RESETCONTENT = 0x184
SENDMESSAGE win,LB_RESETCONTENT,0,0,2

then reload it

Larry

Title: Re: Listbox selection
Post by: sapero on January 17, 2010, 01:53:38 AM

An application sends an LB_SETSEL message to select a string in a multiple-selection list box

Code Select

SendMessage(d1, LB_SETSEL, FALSE, -1, listbox_id)
Should deselect all items. Include windows.inc or windowssdk.inc.

Title: Re: Listbox selection
Post by: LarryMc on January 17, 2010, 09:36:27 AM

I missed that one, Sapero. As always you come through!

Larry

IonicWind Software

IWBasic => General Questions => Topic started by: ckoehn on January 16, 2010, 06:11:47 PM