I have a listbox grid implemented with multiple=true and set all rows selected by default.
The requirement is to get the row/listitem unselected by end user. The selectedItems is giving list of selected items, but is there is a straight way to get the item currently unselected?
Tags
People
Badges
Help
<listbox sclass="listbox" span="true" model="@load(vm.myModel)" multiple="true" checkmark="true" selectedItems="@bind(vm.selectedItemList)" onSelect="@command('itemSelected')" selectedItem="@bind(vm.currentSelectedItem)">
selecteItem is returning the first item in the list. itemSelected action too is giving only those items selected.
Listbox.getSelection() returns you a Set. You can put your original complete data model in a Set, too. Then, find the difference of these 2 sets, you get the unselected data set.
The simplest way is:
completeSet.removeAll(selectionSet);
For other ways, you can refer to https://stackoverflow.com/questions/18644579/getting-the-difference-between-two-sets
Thanks for your quick reply @hawk. I thought there might be an existing feature to get the unselected items something like selectedItem. Now I have used removeAll and the problem is resolved.
Asked: 2019-12-04 11:32:32 +0800
Seen: 12 times
Last updated: Dec 07
