public void CopyTo(View [] array, int arrayIndex)
{
_views.CopyTo(array, arrayIndex);
_layout.Invalidate();
ChildrenAdded?.Invoke(this, new LayoutEventArgs(arrayIndex, array.Length));
}
public void Insert(int index, View item)
{
if (item == null)
{
return;
}
_views.Insert(index, item);
item.Parent = this;
item.Navigation = Parent as NavigationView ?? Parent?.Navigation;
ChildrenAdded?.Invoke(this, new LayoutEventArgs(index, 1));
}
public void AddChildren(IEnumerable <ITreeItem> children)
{
List <ITreeItem> added = new List <ITreeItem>();
foreach (ITreeItem child in children)
{
if (Add(child, false))
{
added.Add(child);
}
}
if (added.Count > 0)
{
TreeItemChildrenAddEventArgs args =
new TreeItemChildrenAddEventArgs(added);
ChildrenAdded?.Invoke(this, args);
}
}
private bool Add(ITreeItem item, bool sendEvent)
{
if (!children.Contains(item))
{
children.Add(item);
item.Parent = this;
if (sendEvent)
{
TreeItemChildrenAddEventArgs args =
new TreeItemChildrenAddEventArgs(new List <ITreeItem>()
{
item
});
ChildrenAdded?.Invoke(this, args);
}
return(true);
}
return(false);
}