public void Refresh()
{
bool changed = false;
using (Helpers.Timer("refreshing smart group {0}", base.Text))
{
ServerTree.Instance.Operation(OperationBehavior.SuspendSort | OperationBehavior.SuspendUpdate | OperationBehavior.SuspendGroupChanged, delegate
{
HashSet <SmartServerRef> set = new HashSet <SmartServerRef>();
base.Nodes.ForEach(delegate(TreeNode s)
{
set.Add(s as SmartServerRef);
});
this.GetParentNodes().VisitNodes(delegate(RdcTreeNode node)
{
if (node is VirtualGroup)
{
return(NodeVisitorResult.NoRecurse);
}
Server server = node as Server;
if (server != null)
{
SmartServerRef item = UpdateForServer(server, ref changed);
set.Remove(item);
}
return(NodeVisitorResult.Continue);
});
if (set.Count > 0)
{
changed = true;
set.ForEach(delegate(SmartServerRef s)
{
ServerTree.Instance.RemoveNode(s);
});
}
});
}
if (changed)
{
ServerTree.Instance.SortGroup(this);
ServerTree.Instance.OnGroupChanged(this, ChangeType.InvalidateUI);
}
}
private SmartServerRef UpdateForServer(Server server, ref bool changed)
{
SmartServerRef smartServerRef = server.FindServerRef <SmartServerRef>(this);
bool flag = RuleGroup != null && RuleGroup.Evaluate(server);
if (smartServerRef != null != flag)
{
changed = true;
if (flag)
{
smartServerRef = new SmartServerRef(server);
ServerTree.Instance.AddNode(smartServerRef, this);
}
else
{
ServerTree.Instance.RemoveNode(smartServerRef);
}
}
return(smartServerRef);
}