In virtual mode, the Tree Grid is created on demand. In this case, Child records are created and initialized when the parent record is expanded.

Fix front door	Sven Saylor	3 hours
Decorate living room	Nancy Winkler	3 hours
Office supplies	Sven Rossi	5 hours
Fix front door	Mayumi Nodier	8 hours
Paint wall	Lars Peterson	6 hours
Housewares	Martin Bjorn	1 hour
Fix lights	Antoni Peterson	4 hours
Fix lights	Cheryl Bjorn	9 hours
Paint bedroom	Yoshi Ohno	2 hours
Office supplies	Elio Saylor	10 hours