internal void SetIsExpanded(TreeNodeAdv node, bool value)
{
if (Root == node && !value)
return; //Can't collapse root node
if (value)
OnExpanding(node);
else
OnCollapsing(node);
if (value && !node.IsExpandedOnce)
{
if (AsyncExpanding && LoadOnDemand)
{
AddExpandingNode(node);
node.AssignIsExpanded(true);
Invalidate();
}
ReadChilds(node, AsyncExpanding);
RemoveExpandingNode(node);
}
node.AssignIsExpanded(value);
SmartFullUpdate();
if (value)
OnExpanded(node);
else
OnCollapsed(node);
}
