ListViewItem Remove and then reuse

[dascandy]

I have a filtered ListView. It removes items from the ListView itself and then adds them to an ArrayList for turning off the filter again.

The problem is that each time I use remove on the Items collection to remove the given item, it finalizes it and calls in the garbage collector. I'd like to reuse it however since that saves me a copy of the contents (which are non-trivially sized). Turning off the filter (adding the full arraylist to the item collection) takes around 2-3 seconds for a big amount, turning on the filter takes a minute.

Does anybody know how to speed this up or how to make ListView (from which I inherit) not delete the ListViewItem ?

 

[JurkMonkey]

I haven't checked but can't you make a listviewitem invisible?

ListviewItem item = myListview.Items[2];

item.Visible = false;

 

[dascandy]

Nope, ListViewItem's have no Visible member:

http://msdn.microsoft.com/library/d...fSystemWindowsFormsListViewItemClassTopic.asp

If only...