Multiple Selection in a ListBox Control

I have a list box control in a dialog box, which is associated with  CPropertyPage class.I have selected "Multiple Selection".I have associated a CString variable for the listbox through class wizard.Now the prblem is, when ever I click the tab of the next property page (i.e On killing this property page), I see a crash.When I go through the debugger I come to know that the "LB_GETTEXTLEN" message is sent(in MFC's Source DLGDATA.CPP) an the return value is -1.Can any one help me to resolve the crash?
Amaresh080997Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

 
mbhaktaCommented:
What version of VC++ are you using ?
0
 
Amaresh080997Author Commented:
Thanks for replying mbhakta! I am using MFC 4.2.Can u suggest me something?
0
 
cnasarreCommented:
I'm almost sure that you can't handle a multi-select listbox
with a CString. The data exchange process is not implemented.
You have to do it yourself either in DoDataExchange() or
in OnKillActive()/OnSetActive() of your property page.

You have to use GetSelCount() and GetSelItem() to get each
selected item and store them in a list or whatever you need

0

Experts Exchange Solution brought to you by ConnectWise

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
 
Amaresh080997Author Commented:
Thanks for the reply cnasarre! Your answer is certainly acceptable.It is the same thing even I thought of.But I was not sure.
By the way, I still leave the question open for answering so that some one who is doubly sure can give it a shot.
Once again thanks a lot for replying cnasarre!
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.