Archived:Applying actions on list box items using Symbian C++

Subject:	Applying actions on list box items		TSS000647
	Platform(s):	Device(s), SW version(s):
	S60 1st Edition S60 2nd Edition and FP1, FP2, FP3 S60 3rd Edition and FP1
Category:	Symbian C++
Subcategory:	UI, UI components
Description:	Description: Below is a code snippet demonstrating how to apply actions on a list box item selected by the user. The code to create a simple list box can be obtained from the link below: http://wiki.forum.nokia.com/index.php/How_to_create_a_simple_listbox It is possible to apply any actions (e.g., displaying a popup or a dialog) by catching key events for a list box that currently has keyboard focus. This is done in the OfferKeyEventL() function of the container class that owns the list box. Solution:     TKeyResponse CMyExampleAppView::OfferKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType)         {         if(aType != EEventKey)             {             return EKeyWasNotConsumed;             }         switch(aKeyEvent.iCode)             {             case EKeyUpArrow:             case EKeyDownArrow:                 {                 // Forward up and down key press events to the list box                 return iListBox->OfferKeyEventL( aKeyEvent, aType );                 }             case EKeyOK: // display an information note when item is selected                 {                 _LIT(KFormatMessage, "Selected item: %d");                 TInt idx = iListBox->CurrentItemIndex();                 TBuf<32> message;                 message.Format(KFormatMessage, idx);                 CAknInformationNote* Note = new (ELeave) CAknInformationNote;                 Note->ExecuteLD(message);                 return EKeyWasConsumed;                 }             default:                 break;             }                 return EKeyWasNotConsumed;         } Also make sure to add this line     AddToStackL( iAppView ); in AppUi’s ConstructL() to add the view/container to the control stack and receive OfferKeyEventL() calls.
Creation date:	May 10, 2007
Last modified:	-