private void viewModel_ExpansionUpdateNeeded(object sender, CustomEventArgs <ExpansionUpdateEvent> e)
{
SequenceElement sequenceElement = sender as SequenceElement;
DependencyObject dObject = null;
ExpansionUpdateEvent updateEvent = e.Value;
if (updateEvent == ExpansionUpdateEvent.Filter)
{
ExpandMatchedNode(sender); // Keeping way open for future filtering feature
}
else
{
if (this.viewModel.SelectedAnimationElementRoot != null && this.viewModel.SelectedAnimationParent != null)
{
if (this.viewModel.SelectedAnimationElement is SequenceElement) // Sequence within a sequence
{
TreeViewItem item = treeViewAnimations.ItemContainerGenerator.ContainerFromItem(this.viewModel.SelectedAnimationElementRoot) as TreeViewItem;
dObject = FindTreeViewItemUnderTreeViewItemByModelName(item, this.viewModel.SelectedAnimationElement.Name);
}
else if (this.viewModel.SelectedAnimationElementRoot.Name == this.viewModel.SelectedAnimationParent.Name) // They are the same element
{
dObject = treeViewAnimations.GetItemFromSelectedObject(this.viewModel.SelectedAnimationParent);
}
else
{
TreeViewItem item = treeViewAnimations.ItemContainerGenerator.ContainerFromItem(this.viewModel.SelectedAnimationElementRoot) as TreeViewItem;
dObject = FindTreeViewItemUnderTreeViewItemByModelName(item, this.viewModel.SelectedAnimationParent.Name);
}
}
else if (this.viewModel.SelectedAnimationElementRoot == null && this.viewModel.SelectedAnimationElement is SequenceElement)
{
dObject = treeViewAnimations.GetItemFromSelectedObject(this.viewModel.SelectedAnimationElement);
}
TreeViewItem tvi = dObject as TreeViewItem;
if (tvi != null)
{
AnimationElement model = tvi.DataContext as AnimationElement;
if (tvi.Items != null && tvi.Items.Count > 0)
{
if (updateEvent != ExpansionUpdateEvent.Delete)
{
tvi.IsExpanded = true;
}
else
{
UpdateExpansions(tvi);
}
}
else
{
tvi.IsExpanded = false;
}
}
}
}
private void viewModel_ExpansionUpdateNeeded(object sender, CustomEventArgs <ExpansionUpdateEvent> e)
{
CrowdModel crowdModel = sender as CrowdModel;
DependencyObject dObject = null;
ExpansionUpdateEvent updateEvent = e.Value;
if (updateEvent == ExpansionUpdateEvent.Filter)
{
ExpandMatchedNode(sender);
}
else if (updateEvent == ExpansionUpdateEvent.DragDrop)
{
if (this.currentDropItemNode != null)
{
this.currentDropItemNode.IsExpanded = true;
}
}
else
{
if (this.selectedCrowdRoot != null && crowdModel != null)
{
TreeViewItem item = treeViewCrowd.ItemContainerGenerator.ContainerFromItem(this.selectedCrowdRoot) as TreeViewItem;
dObject = FindTreeViewItemUnderTreeViewItemByModelName(item, crowdModel.Name);
if (dObject == null)
{
dObject = treeViewCrowd.GetItemFromSelectedObject(crowdModel);
}
}
else
{
dObject = treeViewCrowd.GetItemFromSelectedObject(crowdModel);
}
TreeViewItem tvi = dObject as TreeViewItem;
if (tvi != null)
{
ICrowdMemberModel model = tvi.DataContext as ICrowdMemberModel;
if (tvi.Items != null && tvi.Items.Count > 0)
{
if (updateEvent != ExpansionUpdateEvent.Delete)
{
tvi.IsExpanded = true;
}
else
{
UpdateExpansions(tvi);
}
}
else
{
tvi.IsExpanded = false;
}
}
}
}
