private void OnGroupsChanged(object sender, NotifyCollectionEventArgs e)
{
switch (e.Event)
{
case NotifyEvent.Insert:
for (int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var group = _group.Groups[i];
var item = new RepositoryGroupListItem(group);
_groupsMapping.Add(group, item);
_items.Insert(i, item);
}
break;
case NotifyEvent.Remove:
for (int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var item = _items[i] as RepositoryGroupListItem;
if (item != null)
{
_groupsMapping.Remove(item.DataContext);
}
}
_items.RemoveRange(e.StartIndex, e.ModifiedItems);
break;
case NotifyEvent.Set:
for (int i = e.StartIndex; i <= e.EndIndex; ++i)
{
var item = _items[i] as RepositoryGroupListItem;
if (item != null)
{
_groupsMapping.Remove(item.DataContext);
}
var group = _group.Groups[i];
item = new RepositoryGroupListItem(group);
_groupsMapping.Add(group, item);
_items[i] = item;
}
break;
case NotifyEvent.Clear:
_groupsMapping.Clear();
_items.RemoveRange(0, e.ModifiedItems);
break;
}
}
private void InsertRepositoryItem(int index, CustomListBoxItemsCollection target, RepositoryListItem itemToInsert)
{
if (!string.IsNullOrWhiteSpace(_txtFilter.Text))
{
if (index == 0)
{
_repositories.Insert(0, itemToInsert);
}
else
{
var dst = _repositories.IndexOf((RepositoryListItem)_lstLocalRepositories.Items[index - 1]);
_repositories.Insert(dst + 1, itemToInsert);
}
if (FilterItem(itemToInsert))
{
target.Insert(index, itemToInsert);
}
}
else
{
_repositories.Insert(index, itemToInsert);
target.Insert(index, itemToInsert);
}
}