Sort order on existing mobile grid

Thanks for your suggestion. Overriding the view looks like the correct approach, I got bogged down with the mobile app was looking for options there. I’ve overridden the view and changed the sort order, and this works. However, it has led to a further problem, all the filtering has been lost from the view. Now the grid shows every shipment in the database.

Looking at the source code for this view. I see the following view definition:

public
			SelectFrom<SOShipLineSplit>
			.InnerJoin<SOShipLine>.On<SOShipLineSplit.FK.ShipmentLine>
			.OrderBy<SOShipLineSplit.shipmentNbr.Asc, SOShipLineSplit.isUnassigned.Desc, SOShipLineSplit.lineNbr.Asc>
			.View Picked;

followed by an enumerable definition:

protected virtual IEnumerable picked()
		{
			var assignedOnly =
				SelectFrom<SOShipLineSplit>.
				InnerJoin<SOShipLine>.On<SOShipLineSplit.FK.ShipmentLine>.
				InnerJoin<INLocation>.On<SOShipLineSplit.locationID.IsEqual<INLocation.locationID>>.
				Where<SOShipLineSplit.shipmentNbr.IsEqual<Header.refNbr.FromCurrent>>.
				View.Select(Base)
				.AsEnumerable()
				.Cast<PXResult<SOShipLineSplit, SOShipLine, INLocation>>();

			IEnumerable<PXResult<SOShipLineSplit, SOShipLine, INLocation>> splits;
			if (HeaderView.Current.Mode.IsIn(Modes.Pick, Modes.Free) || HeaderView.Current.Mode.IsIn(Modes.Pack, Modes.Free) && NoPick)
			{
				var unassignedOnly =
					SelectFrom<Unassigned.SOShipLineSplit>.
					InnerJoin<SOShipLine>.On<Unassigned.SOShipLineSplit.FK.ShipmentLine>.
					InnerJoin<INLocation>.On<Unassigned.SOShipLineSplit.locationID.IsEqual<INLocation.locationID>>.
					Where<Unassigned.SOShipLineSplit.shipmentNbr.IsEqual<Header.refNbr.FromCurrent>>.
					View.Select(Base).AsEnumerable()
					.Cast<PXResult<Unassigned.SOShipLineSplit, SOShipLine, INLocation>>()
					.Select(r => new PXResult<SOShipLineSplit, SOShipLine, INLocation>(MakeAssigned(r), r, r));

				splits = assignedOnly.Concat(unassignedOnly);
			}
			else
				splits = assignedOnly;

			(var picked, var nonpicked) = splits.DisuniteBy(s => s.GetItem<SOShipLineSplit>().PickedQty >= s.GetItem<SOShipLineSplit>().Qty);

			var delegateResult = new PXDelegateResult { IsResultSorted = true };

			delegateResult.AddRange(
				nonpicked
				.OrderBy(
					r => Setup.Current.ShipmentLocationOrdering == SOPickPackShipSetup.shipmentLocationOrdering.Pick
						? r.GetItem<INLocation>().PickPriority
						: r.GetItem<INLocation>().PathPriority)
				.ThenBy(r => r.GetItem<SOShipLineSplit>().IsUnassigned == false) // unassigned first
				.ThenBy(r => r.GetItem<SOShipLineSplit>().InventoryID)
				.ThenBy(r => r.GetItem<SOShipLineSplit>().LotSerialNbr));

			delegateResult.AddRange(
				picked
				.OrderByDescending(
					r => Setup.Current.ShipmentLocationOrdering == SOPickPackShipSetup.shipmentLocationOrdering.Pick
						? r.GetItem<INLocation>().PickPriority
						: r.GetItem<INLocation>().PathPriority)
				.ThenByDescending(r => r.GetItem<SOShipLineSplit>().InventoryID)
				.ThenByDescending(r => r.GetItem<SOShipLineSplit>().LotSerialNbr));

			return delegateResult;
		}

I think this method is applying filter and sorting too. 
I read somewhere that the method with the same name is the view will also need to be overridden is the view is overridden. Does this sound correct? I started trying to override the method but I’m struggling to fix various errors/find types and values. Want to ensure I’m following the correct route before spending more time trying to get it working. 

Thanks

Steve

Thanks Dioris, 
Yes, in this case it is the view delegate which is setting the sorting on the view, not the view itself. The view has it’s own OrderBy statement which confused me for a while because this OrderBy statement is replaced by the sorting in the view delegate. By changing the sorting on the view delegate I was able to change the sorting which appeared in the UI.
Thanks
Steve