server/AyaNova/biz/PurchaseOrderBiz.cs

@@ -131,10 +131,11 @@ namespace AyaNova.Biz
 
             //Show PartRequest fields?
             po.DisplayPartRequest = false;
+            po.DisplayTaxes = false;
 
             foreach (PurchaseOrderItem item in po.Items)
             {
-               
+
                 item.DisplayPartNumber = await ct.Part.AsNoTracking().Where(x => x.Id == item.PartId).Select(x => x.PartNumber).SingleAsync();
                 item.DisplayWarehouse = await ct.PartWarehouse.AsNoTracking().Where(x => x.Id == item.PartWarehouseId).Select(x => x.Name).SingleAsync();
                 if (item.WorkorderItemPartRequestId != null)
@@ -149,6 +150,7 @@ namespace AyaNova.Biz
                 {
                     tax = await ct.TaxCode.AsNoTracking().Where(x => x.Id == item.PurchaseTaxCodeId).SingleAsync();
                     item.DisplayTaxCode = tax.Name;
+                    po.DisplayTaxes = true;
                 }
 
                 //Calculate line totals

server/AyaNova/models/PurchaseOrder.cs

@@ -15,7 +15,7 @@ namespace AyaNova.Models
         public long Id { get; set; }
         public uint Concurrency { get; set; }
 
-       
+
         public long Serial { get; set; }//WAS PO NUMBER        
         public string Notes { get; set; }
         public string Wiki { get; set; }
@@ -42,10 +42,12 @@ namespace AyaNova.Models
         [NotMapped, JsonIgnore]
         public AyaType AyaType { get => AyaType.PurchaseOrder; }
 
-		[NotMapped]
+        [NotMapped]
         public bool DisplayWarehouses { get; set; }
-		[NotMapped]
+        [NotMapped]
         public bool DisplayPartRequest { get; set; }
+        [NotMapped]
+        public bool DisplayTaxes { get; set; }
 
     }//eoc
 

server/AyaNova/util/Seeder.cs

@@ -1713,14 +1713,16 @@ namespace AyaNova.Util
                 o.Status = PurchaseOrderStatus.ClosedFullReceived;
                 o.ReferenceNumber = Fake.Finance.Account(6);
                 o.VendorMemo = Fake.Lorem.Sentence();
-                if (Fake.Random.Number(1, 10) == 5)                
-                    o.ProjectId = Fake.Random.Long(1, TotalSeededProjects);                
+                if (Fake.Random.Number(1, 10) == 5)
+                    o.ProjectId = Fake.Random.Long(1, TotalSeededProjects);
 
                 o.Text1 = Fake.Lorem.Sentence(1, 3);
                 o.Text2 = Fake.Lorem.Sentence(1, 3);
 
                 List<long> partsAdded = new List<long>();
                 int partCount = Fake.Random.Int(1, 5);
+                //simulate some items without tax codes
+                bool addTaxCode = (Fake.Random.Number(1, 3) == 2);
                 for (int y = 0; y < partCount; y++)
                 {
                     long partId = 0;
@@ -1730,6 +1732,7 @@ namespace AyaNova.Util
                     } while (partsAdded.Contains(partId));
                     partsAdded.Add(partId);
                     var qty = Fake.Random.Int(1, 100);
+
                     o.Items.Add(new PurchaseOrderItem()
                     {
                         PartId = partId,
@@ -1739,7 +1742,7 @@ namespace AyaNova.Util
                         PurchaseOrderCost = 10,
                         ReceivedCost = 10,
                         ReceivedDate = o.ExpectedReceiveDate,
-                        PurchaseTaxCodeId = 3//sales and goods
+                        PurchaseTaxCodeId = addTaxCode ? 3 : null//sales and goods
                     });
                 }