Codejock Developer Community : Undesired CXTEditListBox behavior

Undesired CXTEditListBox behavior : Actually, that didn't work!...

Mon, 11 Jun 2007 09:04:05 +0000

Author: znakeeye
Subject: 7303
Posted: 11 June 2007 at 9:04am

Actually, that didn't work! When pressing OnDeleteItem() is called directly, and since it too isn't virtual, my overrided function is not called.

CXTEditListBox::PreTranslateMessage()
... OnDeleteItem();

Argh :(

Undesired CXTEditListBox behavior : Hi, Sorry, but EditListItem()is...

Mon, 11 Jun 2007 06:54:50 +0000

Author: znakeeye
Subject: 7303
Posted: 11 June 2007 at 6:54am

Hi,

Sorry, but EditListItem() is not virtual. I had to implement these functions to get the desired behavior:

OnEndLabelEdit()

OnNewItem()

OnDeleteItem()

OnMoveItemUp()

OnMoveItemDown()

Undesired CXTEditListBox behavior : Problem that nowthese message...

Wed, 06 Jun 2007 01:32:32 +0000

Author: Oleg
Subject: 7303
Posted: 06 June 2007 at 1:32am

Problem that now these message implemented as WM_COMMAND - and MFC automatically will return 1 if they was handled.

EditListItem is virtual method, you can override it.

Thanks.

Undesired CXTEditListBox behavior : Hi, When adding/removing items...

Tue, 05 Jun 2007 04:05:16 +0000

Author: znakeeye
Subject: 7303
Posted: 05 June 2007 at 4:05am

Hi,

When adding/removing items from a CXTEditListBox you get notifications in the form of LBN_XT_PRENEWITEM/LBN_XT_NEWITEM and LBN_XT_PREDELETEITEM/LBN_XT_DELETEITEM.

Let's say that you want to display a "Yes/No"-messagebox before deleting an item. Then what? There is no way to cancel the action.

Perhaps it would be a good idea to implement "pre"-messages for all actions (move up/down too) and check the return value. If TRUE, then cancel the action, otherwise perform it as usual.

As for a temporary solution, I guess the best would be to override CXTEditListBox::OnDeleteItem() etc?

Thanks!

/Chris