Hello,

We did something similar with a POOrderEntry graph extension that uses the in-field warning to create a hint/message that shows the quantity pricing for the current vendor.  Maybe you could use that as a basis to create what you need to show multiple vendor’s prices?

Here’s the graph extension’s code:

 

using PX.Data;
using PX.Data.BQL;
using PX.Data.BQL.Fluent;
using PX.Objects.AP;
using System;
using System.Text;

namespace PX.Objects.PO
{
    public class POOrderEntry_ExtensionAI : PXGraphExtension<POOrderEntry>
    {
        public static bool IsActive() => true;

        #region Event Handlers

        protected void _(Events.RowUpdated<POLine> e)
        {
            var row = (POLine)e.Row;
            if (row == null || row.InventoryID == null || row.OrderQty == null) return;

            PXUIFieldAttribute.SetWarning<POLine.curyUnitCost>(Base.Transactions.Cache, row, null);
            string msg = GetQtyMessage(row.InventoryID, row.VendorID, row.OrderQty, row.RequestedDate);
            PXUIFieldAttribute.SetWarning<POLine.curyUnitCost>(Base.Transactions.Cache, row, msg);
        }

        protected decimal GetItemQtyTotalOnPO(int? inventoryID)
        {
            decimal retval = 0;

            foreach(POLine line in Base.Transactions.Select())
            {
                if (line.InventoryID == inventoryID)
                {
                    retval += line.OrderQty ?? 0;
                }
            }
            return retval;
        }

        protected string GetQtyMessage(int? inventoryID, int? vendorID, decimal? lineQty, DateTime? requestedDate)
        {
            if (inventoryID == null || vendorID == null || lineQty == null) return null;

            StringBuilder p = new StringBuilder();
            decimal orderQty = GetItemQtyTotalOnPO(inventoryID);
            if (requestedDate == null) requestedDate = Base.Accessinfo.BusinessDate;

            var prices =
                SelectFrom<APVendorPrice>
                .Where<APVendorPrice.inventoryID.IsEqual<@P.AsInt>
                    .And<APVendorPrice.vendorID.IsEqual<@P.AsInt>>
                    .And<APVendorPrice.effectiveDate.IsLessEqual<@P.AsDateTime>
                        .Or<APVendorPrice.effectiveDate.IsNull>>
                    .And<APVendorPrice.expirationDate.IsGreaterEqual<@P.AsDateTime>
                        .Or<APVendorPrice.expirationDate.IsNull>>>
                .View.ReadOnly.Select(Base, inventoryID, vendorID, requestedDate, requestedDate);


            if (prices == null) return null;

            p.AppendLine("Quantity pricing available:");
            foreach (APVendorPrice price in prices)
            {
                p.AppendLine($"{price.BreakQty:n2} @ {price.SalesPrice:n2}");
            }
            p.AppendLine("");
            p.AppendLine($"You have {orderQty:n2} on this Purchase Order");
            return p.ToString();
        }
        #endregion
    }
}