Hi Mary,
With regards to DirectedTreeLayout and hiding child nodes,The Directed-Tree layout allows you to arrange the nodes in a tree-like structure. This layout can be applied to any diagram that comprises a directed tree graph with unique root and child nodes. This makes creating diagrams easier because the node position is determined automatically, based on the connections. However, it is necessary to specify a layout root for the tree layout. The Directed-Tree layout will position the nodes based on the layout root.Currently we do not have a support to achive your requirement.
In order to have a better track with this, please create your customer account in Direct Trac and open a new incident so that we will assist you accordingly.
Our Direct Trac support system can be accessed from the following link:
Link:
https://www.syncfusion.com/account/login?ReturnUrl=%2fsupport%2fdirecttrac%2fincidentsFor more information, you can contact our sales team at salessupport@syncfusion.com
Please let us know if you have any concerns.
Regards,
Ramya