RemoveAt in Observable Collection, also modifies IsSelected Property in ListView

Question

Hi

I would try as much explicit as I can.

I have two UI objects, this is a TabControl and a ListView, both are binded again two different list of the same objects, both have the IsSelected property binded against the Item.IsSelected as the View Model Commands,

this works perfectly, (I can prove it, by selecting in one of the sources, and the other selection it´s updated)

my problem is when removing one item from any of the two lists. The Remove method seems to invoke the IsSelected to FALSE, and the Item is therefore UNSELECTED in the other list that it still appears.

What I´m doing wrong???

any help would be really appreciated.

Thnks in advance

Answer 1

That may be either a bug or an oversight in the controls. What you can do is write your own Remove method that saves the selection, remove the item, and then put the selection back.

Answer 2

What is happening is that whenever you add/remove an item from the observable collection it is refreshing the list. It does this so that any filters/views/etc. will be refreshed/refiltered. Alas, it does--as you have discovered--not maintain the selected item in any bound controls when it refreshes.