private void viewModel_RosterUpdated(object sender, EventArgs e)
{
CollectionViewSource source = (CollectionViewSource)(this.Resources["ParticipantsView"]);
ListCollectionView view = (ListCollectionView)source.View;
if (view != null && view.Groups != null && view.Groups.Count > 1)
{
view.Refresh();
foreach (CollectionViewGroup cvg in view.Groups)
{
if (rosterGroupExpansionStates.ContainsKey(cvg.Name.ToString()))
{
bool isExpanded = rosterGroupExpansionStates[cvg.Name.ToString()];
if (isExpanded)
{
GroupItem groupItem = this.RosterViewListBox.ItemContainerGenerator.ContainerFromItem(cvg) as GroupItem;
if (groupItem != null)
{
groupItem.UpdateLayout();
Expander expander = ControlUtilities.GetDescendantByType(groupItem, typeof(Expander)) as Expander;
if (expander != null)
{
expander.IsExpanded = true;
}
}
}
}
}
}
}
private void viewModel_SequenceUpdated(object sender, EventArgs e)
{
CollectionViewSource source = (CollectionViewSource)(this.Resources["SequenceView"]);
ListCollectionView view = (ListCollectionView)source.View;
if (view != null && view.Groups != null && view.Groups.Count > 0)
{
view.Refresh();
CollectionViewGroup cvg = view.Groups.First() as CollectionViewGroup;
if (cvg.Name.ToString() == Constants.HOLDING_CHARACTERS_GROUP_NAME && view.Groups.Count > 1)
{
cvg = view.Groups[1] as CollectionViewGroup;
}
GroupItem groupItem = this.SequenceViewListBox.ItemContainerGenerator.ContainerFromItem(cvg) as GroupItem;
if (groupItem != null)
{
groupItem.UpdateLayout();
Expander expander = Helper.GetDescendantByType(groupItem, typeof(Expander)) as Expander;
if (expander != null)
{
expander.IsExpanded = true;
}
}
}
}