Wrong filter Generated in Master/detail master/detail hierachy datagrid

var PosDetailsResult = await possvService.GetPosDetails(new Query { Filter = $@"i => ", Expand = "CatItem,Posso" });

Also > add detail wrong parameter new Dictionary<string, object> { {"ItemID" , data.ItemID} }); This default ItemID instead of ParentID

Tilter do not have parameter