SelectableListNodeListRemoveSelectedItems(ActionInt32, Object) Method

public void RemoveSelectedItems(
	Action<int, Object?>? docRemoveAction
)

Parameters

docRemoveAction  ActionInt32, Object

You can provide an action here which simultaneously will remove the corresponding document nodes. 1st argument is the index of the ListNode (!) which is removed. 2nd argument is the content of the Tag member of the list node which is removed. When multiple nodes are selected, the nodes with the higher index are removed first.

Reference