public void Drop(IDragSource node, DropPosition mode, bool copy)
{
var cvm = node as NodeViewModel;
if (copy) cvm = new NodeViewModel(cvm.Node, cvm.Parent);
switch (mode)
{
case DropPosition.Add:
this.Children.Add(cvm);
cvm.Parent = this;
this.IsExpanded = true;
break;
case DropPosition.InsertBefore:
int index = this.Parent.Children.IndexOf(this);
Parent.Children.Insert(index, cvm);
cvm.Parent = this.Parent;
break;
case DropPosition.InsertAfter:
int index2 = this.Parent.Children.IndexOf(this);
Parent.Children.Insert(index2 + 1, cvm);
cvm.Parent = this.Parent;
break;
}
}
public NodeViewModel(Node Node, NodeViewModel parent)
{
this.Node = Node;
this.Parent = parent;
this.IsExpanded = true;
}
public NodeViewModel AddChild()
{
var cn = this.Node as CompositeNode;
if (cn == null)
{
return null;
}
var newChild = new CompositeNode() { Name = "New node" };
cn.Children.Add(newChild);
var vm = new NodeViewModel(newChild, this);
this.Children.Add(vm);
return vm;
}
public NodeViewModel(Node Node, NodeViewModel parent)
{
this.Node = Node;
this.Parent = parent;
this.IsExpanded = true;
}