Fix for Issue #230. ArgumentException Member does not exist.

AutoMapper.AspNetCore.OData.EFCore/LinqExtensions.cs

@@ -591,8 +591,7 @@ private static List<List<ODataExpansionOptions>> GetExpansions(this IEnumerable<
                 (
                     expansions =>
                     {
-                        segmentExpansions.Reverse();
-                        segmentExpansions.ForEach(exp => expansions.Insert(0, exp));
+                        expansions.InsertRange(0, segmentExpansions);
                         return expansions;
                     }
                 ).ToList();

AutoMapper.OData.EFCore.Tests/AirVinylData/AirVinylDatabaseInitializer.cs

@@ -314,9 +314,15 @@ public static void SeedDatabase(AirVinylDbContext context)
                 new DoorManufacturer { Name = "Ikea" },
                 new DoorManufacturer { Name = "Hardwood" }
             );
+            context.DoorKnobs.AddRange(
+                new DoorKnob { Style = "Circular" },
+                new DoorKnob { Style = "Lever" }
+            );
+
             context.SaveChanges();
 
             ICollection<DoorManufacturer> doorManufacturers = [.. context.DoorManufacturers];
+            ICollection<DoorKnob> doorKnobs = [.. context.DoorKnobs];
 
             context.RecordStores.AddRange(
                 new SpecializedRecordStore()
@@ -335,8 +341,8 @@ public static void SeedDatabase(AirVinylDbContext context)
                         RoomNumbers = [3, 4, 5, 6],
                         Doors =
                         [
-                            new() { Name = "Front Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Serta").Id },
-                            new() { Name = "Side Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Hardwood").Id }
+                            new() { Name = "Front Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Serta").Id, DoorKnobId = doorKnobs.Single(k => k.Style == "Circular").Id },
+                            new() { Name = "Side Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Hardwood").Id, DoorKnobId = doorKnobs.Single(k => k.Style == "Lever").Id }
                         ]
                     }
                 },
@@ -356,8 +362,8 @@ public static void SeedDatabase(AirVinylDbContext context)
                         RoomNumbers = [2, 3, 4, 5],
                         Doors =
                         [
-                            new() { Name = "Main Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Serta").Id },
-                            new() { Name = "Cabinet Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Serta").Id }
+                            new() { Name = "Main Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Serta").Id, DoorKnobId = doorKnobs.Single(k => k.Style == "Circular").Id },
+                            new() { Name = "Cabinet Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Serta").Id, DoorKnobId = doorKnobs.Single(k => k.Style == "Circular").Id}
                         ]
                     }
                 },
@@ -376,8 +382,8 @@ public static void SeedDatabase(AirVinylDbContext context)
                         RoomNumbers = [1, 2, 3, 4],
                         Doors =
                         [
-                            new() { Name = "Bedroom Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Serta").Id },
-                            new() { Name = "Balcony Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Sealy").Id }
+                            new() { Name = "Bedroom Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Serta").Id, DoorKnobId = doorKnobs.Single(k => k.Style == "Circular").Id },
+                            new() { Name = "Balcony Door", DoorManufacturerId = doorManufacturers.Single(m => m.Name == "Sealy").Id, DoorKnobId = doorKnobs.Single(k => k.Style == "Lever").Id}
                         ]
                     }
                 }

AutoMapper.OData.EFCore.Tests/AirVinylData/AirVinylDbContext.cs

@@ -12,6 +12,7 @@ public class AirVinylDbContext : DbContext
         public DbSet<Rating> Ratings { get; set; }
         public DbSet<DynamicProperty> DynamicVinylRecordProperties { get; set; }
         public DbSet<DoorManufacturer> DoorManufacturers { get; set; }
+        public DbSet<DoorKnob> DoorKnobs { get; set; }
 
         public AirVinylDbContext(DbContextOptions<AirVinylDbContext> options)
            : base(options)

AutoMapper.OData.EFCore.Tests/AirVinylData/Door.cs

@@ -9,6 +9,8 @@ public class Door
         public string Name{ get; set; }
         public int AddressId { get; set; }
         public int DoorManufacturerId { get; set; }
+        public int DoorKnobId { get; set; }
         public DoorManufacturer DoorManufacturer { get; set; }
+        public DoorKnob DoorKnob { get; set; }
     }
 }

AutoMapper.OData.EFCore.Tests/AirVinylData/DoorKnob.cs

@@ -0,0 +1,11 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace AutoMapper.OData.EFCore.Tests.AirVinylData
+{
+    public class DoorKnob
+    {
+        [Key]
+        public int Id { get; set; }
+        public string Style { get; set; }
+    }
+}

AutoMapper.OData.EFCore.Tests/AirVinylModel/DoorKnobModel.cs

@@ -0,0 +1,11 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace AutoMapper.OData.EFCore.Tests.AirVinylModel
+{
+    public class DoorKnobModel
+    {
+        [Key]
+        public int Id { get; set; }
+        public string Style { get; set; }
+    }
+}

AutoMapper.OData.EFCore.Tests/AirVinylModel/DoorModel.cs

@@ -9,6 +9,8 @@ public class DoorModel
         public string Name { get; set; }
         public int AddressId { get; set; }
         public int DoorManufacturerId { get; set; }
+        public int DoorKnobId { get; set; }
         public DoorManufacturerModel DoorManufacturer { get; set; }
+        public DoorKnobModel DoorKnob { get; set; }
     }
 }

AutoMapper.OData.EFCore.Tests/ExpansionTests.cs

@@ -89,6 +89,27 @@ static void Test(ICollection<RecordStoreModel> collection)
                 Assert.False(string.IsNullOrEmpty(collection.First().StoreAddress.Doors.First().Name));
                 Assert.NotNull(collection.First().StoreAddress.Doors.First().DoorManufacturer);
                 Assert.False(string.IsNullOrEmpty(collection.First().StoreAddress.Doors.First().DoorManufacturer.Name));
+                Assert.Null(collection.First().StoreAddress.Doors.First().DoorKnob);
+            }
+        }
+
+        [Fact]
+        public async Task GetRecordStoresCanExpandMultipleNavigationPropertiesOfNavigationPropertyUnderComplexType()
+        {
+            string query = "/recordstoremodel?$expand=StoreAddress/Doors($expand=DoorManufacturer,DoorKnob)";
+            Test(await GetAsync<RecordStoreModel, RecordStore>(query));
+
+            static void Test(ICollection<RecordStoreModel> collection)
+            {
+                Assert.True(collection.Count > 0);
+                Assert.True(collection.All(r => r.Ratings.Count == 0));
+                Assert.False(string.IsNullOrEmpty(collection.First().StoreAddress.Country));
+                Assert.NotEmpty(collection.First().StoreAddress.Doors);
+                Assert.False(string.IsNullOrEmpty(collection.First().StoreAddress.Doors.First().Name));
+                Assert.NotNull(collection.First().StoreAddress.Doors.First().DoorManufacturer);
+                Assert.False(string.IsNullOrEmpty(collection.First().StoreAddress.Doors.First().DoorManufacturer.Name));
+                Assert.NotNull(collection.First().StoreAddress.Doors.First().DoorKnob);
+                Assert.False(string.IsNullOrEmpty(collection.First().StoreAddress.Doors.First().DoorKnob.Style));
             }
         }
 

AutoMapper.OData.EFCore.Tests/Mappings/AirVinylMappings.cs

@@ -11,6 +11,8 @@ public AirVinylMappings()
                 .ForAllMembers(o => o.ExplicitExpansion());
             CreateMap<Car, CarModel>()
                 .ForAllMembers(o => o.ExplicitExpansion());
+            CreateMap<DoorKnob, DoorKnobModel>()
+               .ForAllMembers(o => o.ExplicitExpansion());
             CreateMap<Door, DoorModel>()
                 .ForAllMembers(o => o.ExplicitExpansion());
             CreateMap<DoorManufacturer, DoorManufacturerModel>()