SelectedIndexChanged in WinFrms databind Listbox

Question

I am having a problem with coding the SelectedIndexChange event on a listbox that's bound to data from a database. When I code the SelectedIndexChange event, it is fired when the listbox is populated with the data from the database, which results in a never ending loop and the application gets stuck. I really only want the event to fire when the user selects an item from the listbox, not when it is filled. I also tried SelectedValueChanged and this does the same thing. The combobox has a SelectionChangeCommitted event which works for that but the listbox doesn't have this. Are there any tricks around this? Thanks for your help.

rulec444 · Answer

Finally!! This is working now!! Great suggestion - thank you!!

kevint · Answer

Create a class level bool called _loaded - or whatever you want to call it - then after your initialisation/loading is complete set _loaded to true. Then in the top of your event handler for the SelectedIndexChanged event put if(!_loaded) return; . Regards KevinT

Andrzej Wegierski · Answer

Try to add handler to SelectedIndexChange AFTER retrieving data or use a semaphore to avoid executing it's entry while retrieving data.