protected void Collections_PopulateNodes(object sender, FlyTreeNodeEventArgs e)
{
int collectionID = int.Parse(e.Node.Value);
using (WindchimeEntities wce = new WindchimeEntities())
{
var children = (from Collection c in wce.Collections
where c.EntityID == collectionID
select c.Children).First();
foreach (Collection c in children)
{
var node = new FlyTreeNode(c.Name, c.EntityID.ToString());
//node.ImageUrl = "~/Images/folder-small.png";
// if there are children out there, populate them later. if not, no point in confusing the user
c.Children.Load();
if (c.Children.Count != 0)
{
node.PopulateNodesOnDemand = true;
}
else
{
node.PopulateNodesOnDemand = false;
}
e.Node.ChildNodes.Add(node);
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (IsPostBack)
{
return;
}
// fresh tree
//Collections_tree.Nodes.Clear();
using (WindchimeEntities wce = new WindchimeEntities())
{
// only want to display top level collections at the root level
var topLevelCollections = from Collection c in wce.Collections
where c.Parents.Count == 0
select c;
foreach (Collection c in topLevelCollections)
{
var node = new FlyTreeNode(c.Name, c.EntityID.ToString());
//node.ImageUrl = "~/Images/folder-small.png";
// if there are children out there, populate them later. if not, no point in confusing the user
c.Children.Load();
if (c.Children.Count != 0)
{
node.PopulateNodesOnDemand = true;
}
else
{
node.PopulateNodesOnDemand = false;
}
Collections_tree.Nodes.Add(node);
}
}
}
