private void AddNode(CsgNode node)
{
if (root == null)
{
return;
}
CsgNodeWrapper wrapper = root.Node.Repository.GetWrapper(node);
CsgNodeTreeViewItem item = nodeView.SelectedItem as CsgNodeTreeViewItem;
CsgGroupWrapper selected = null;
while (item != null)
{
selected = item.Node as CsgGroupWrapper;
if (selected != null)
{
break;
}
item = item.Parent as CsgNodeTreeViewItem;
}
if (selected == null)
{
selected = root.Node as CsgGroupWrapper;
}
if (selected != null)
{
selected.AddChild(wrapper);
}
}
protected override void OnDrop(DragEventArgs e)
{
string[] ids = (e.Data.GetData(DataFormats.Text) as string ?? string.Empty).Split('|');
e.Handled = true;
if (ids.Length == 2)
{
CsgNodeWrapper wrapper = Node.Repository.GetWrapperById(ids[0]);
if (e.Effects == DragDropEffects.Move)
{
CsgGroupWrapper parent = Node.Repository.GetWrapperById(ids[1]) as CsgGroupWrapper;
if (wrapper != null && parent != null)
{
CsgNodeTreeViewItem item = this;
while (item != null)
{
if (item.Node == wrapper)
{
return;
}
item = item.Parent as CsgNodeTreeViewItem;
}
if (parent.RemoveChild(wrapper))
{
if (!Group.AddChild(wrapper))
{
parent.AddChild(wrapper);
}
}
IsSelected = true;
}
}
else if (e.Effects == DragDropEffects.Link)
{
if (wrapper != null)
{
Group.AddChild(wrapper);
IsSelected = true;
}
}
}
base.OnDrop(e);
}