server/AyaNova/biz/PartAssemblyBiz.cs

@@ -118,7 +118,10 @@ namespace AyaNova.Biz
                 {
                     pai.PartViz = partNames.Where(z => z.Id == pai.PartId).First().Name;
                 }
+                //sort in place by partviz
+                ret.Items.Sort((lhs,rhs)=> lhs.PartViz.CompareTo(rhs.PartViz));
             }
+            
             return ret;
         }