in the case of using Auto Generate Hierarchy of Grid View if the first record of the partent table has not related record in child's table, grid view can not load other parent child's records.
For example, as shown in the picture (01.png), I have 4 tables.
The Patient table is Parent and 3 other are children (one to many relations). Now if the first record of the Patient table that retrieves to grid data source has no related record in 3 other tables, the grid does not display child's records for other parent table records. shown in picture 02.png.
I'm using .net 4.7 and UI For WinForms 2017_2_613