I am looking at a sample application of a GridControl being used to bind to a hierarchical data and in doing so, I am unable to understand how come without assigning anything to datasource (or GridModel in this case) the data is rendered in the Grid. The GridSaveCellInfo and GridQueryCellInfo have been implemented and there is a sub classing as well. There are various CellModels associated with the Model. However, I do not see any actual data being assigned to the model and it is being constructed polymorphically. So I need to understand how GridControl data assignment is done via a tutorial. Thanks.