diff --git a/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/PetApi.cs b/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/PetApi.cs
index a30ac7a5f1a4..18fefec1cbad 100644
--- a/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/PetApi.cs
+++ b/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/PetApi.cs
@@ -28,7 +28,7 @@ namespace IO.Swagger.Controllers
         [HttpPost]
         [Route("/pet")]
         [SwaggerOperation("AddPet")]
-        public void AddPet([FromBody]Pet body)
+        public virtual void AddPet([FromBody]Pet body)
         { 
             throw new NotImplementedException();
         }
@@ -44,7 +44,7 @@ namespace IO.Swagger.Controllers
         [HttpDelete]
         [Route("/pet/{petId}")]
         [SwaggerOperation("DeletePet")]
-        public void DeletePet([FromRoute]long? petId, [FromHeader]string apiKey)
+        public virtual void DeletePet([FromRoute]long? petId, [FromHeader]string apiKey)
         { 
             throw new NotImplementedException();
         }
@@ -53,7 +53,7 @@ namespace IO.Swagger.Controllers
         /// <summary>
         /// Finds Pets by status
         /// </summary>
-        /// <remarks>Multiple status values can be provided with comma separated strings</remarks>
+        /// <remarks>Multiple status values can be provided with comma seperated strings</remarks>
         /// <param name="status">Status values that need to be considered for filter</param>
         /// <response code="200">successful operation</response>
         /// <response code="400">Invalid status value</response>
@@ -61,7 +61,7 @@ namespace IO.Swagger.Controllers
         [Route("/pet/findByStatus")]
         [SwaggerOperation("FindPetsByStatus")]
         [SwaggerResponse(200, type: typeof(List<Pet>))]
-        public IActionResult FindPetsByStatus([FromQuery]List<string> status)
+        public virtual IActionResult FindPetsByStatus([FromQuery]List<string> status)
         { 
             string exampleJson = null;
             
@@ -75,7 +75,7 @@ namespace IO.Swagger.Controllers
         /// <summary>
         /// Finds Pets by tags
         /// </summary>
-        /// <remarks>Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.</remarks>
+        /// <remarks>Muliple tags can be provided with comma seperated strings. Use tag1, tag2, tag3 for testing.</remarks>
         /// <param name="tags">Tags to filter by</param>
         /// <response code="200">successful operation</response>
         /// <response code="400">Invalid tag value</response>
@@ -83,7 +83,7 @@ namespace IO.Swagger.Controllers
         [Route("/pet/findByTags")]
         [SwaggerOperation("FindPetsByTags")]
         [SwaggerResponse(200, type: typeof(List<Pet>))]
-        public IActionResult FindPetsByTags([FromQuery]List<string> tags)
+        public virtual IActionResult FindPetsByTags([FromQuery]List<string> tags)
         { 
             string exampleJson = null;
             
@@ -97,8 +97,8 @@ namespace IO.Swagger.Controllers
         /// <summary>
         /// Find pet by ID
         /// </summary>
-        /// <remarks>Returns a single pet</remarks>
-        /// <param name="petId">ID of pet to return</param>
+        /// <remarks>Returns a pet when ID &lt; 10.  ID &gt; 10 or nonintegers will simulate API error conditions</remarks>
+        /// <param name="petId">ID of pet that needs to be fetched</param>
         /// <response code="200">successful operation</response>
         /// <response code="400">Invalid ID supplied</response>
         /// <response code="404">Pet not found</response>
@@ -106,7 +106,7 @@ namespace IO.Swagger.Controllers
         [Route("/pet/{petId}")]
         [SwaggerOperation("GetPetById")]
         [SwaggerResponse(200, type: typeof(Pet))]
-        public IActionResult GetPetById([FromRoute]long? petId)
+        public virtual IActionResult GetPetById([FromRoute]long? petId)
         { 
             string exampleJson = null;
             
@@ -128,7 +128,7 @@ namespace IO.Swagger.Controllers
         [HttpPut]
         [Route("/pet")]
         [SwaggerOperation("UpdatePet")]
-        public void UpdatePet([FromBody]Pet body)
+        public virtual void UpdatePet([FromBody]Pet body)
         { 
             throw new NotImplementedException();
         }
@@ -145,7 +145,7 @@ namespace IO.Swagger.Controllers
         [HttpPost]
         [Route("/pet/{petId}")]
         [SwaggerOperation("UpdatePetWithForm")]
-        public void UpdatePetWithForm([FromRoute]long? petId, [FromForm]string name, [FromForm]string status)
+        public virtual void UpdatePetWithForm([FromRoute]string petId, [FromForm]string name, [FromForm]string status)
         { 
             throw new NotImplementedException();
         }
@@ -158,19 +158,13 @@ namespace IO.Swagger.Controllers
         /// <param name="petId">ID of pet to update</param>
         /// <param name="additionalMetadata">Additional data to pass to server</param>
         /// <param name="file">file to upload</param>
-        /// <response code="200">successful operation</response>
+        /// <response code="0">successful operation</response>
         [HttpPost]
         [Route("/pet/{petId}/uploadImage")]
         [SwaggerOperation("UploadFile")]
-        [SwaggerResponse(200, type: typeof(ApiResponse))]
-        public IActionResult UploadFile([FromRoute]long? petId, [FromForm]string additionalMetadata, [FromForm]System.IO.Stream file)
+        public virtual void UploadFile([FromRoute]long? petId, [FromForm]string additionalMetadata, [FromForm]System.IO.Stream file)
         { 
-            string exampleJson = null;
-            
-            var example = exampleJson != null
-            ? JsonConvert.DeserializeObject<ApiResponse>(exampleJson)
-            : default(ApiResponse);
-            return new ObjectResult(example);
+            throw new NotImplementedException();
         }
     }
 }
diff --git a/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/StoreApi.cs b/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/StoreApi.cs
index 048382538849..0ba31771bbb3 100644
--- a/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/StoreApi.cs
+++ b/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/StoreApi.cs
@@ -29,7 +29,7 @@ namespace IO.Swagger.Controllers
         [HttpDelete]
         [Route("/store/order/{orderId}")]
         [SwaggerOperation("DeleteOrder")]
-        public void DeleteOrder([FromRoute]string orderId)
+        public virtual void DeleteOrder([FromRoute]string orderId)
         { 
             throw new NotImplementedException();
         }
@@ -44,7 +44,7 @@ namespace IO.Swagger.Controllers
         [Route("/store/inventory")]
         [SwaggerOperation("GetInventory")]
         [SwaggerResponse(200, type: typeof(Dictionary<string, int?>))]
-        public IActionResult GetInventory()
+        public virtual IActionResult GetInventory()
         { 
             string exampleJson = null;
             
@@ -67,7 +67,7 @@ namespace IO.Swagger.Controllers
         [Route("/store/order/{orderId}")]
         [SwaggerOperation("GetOrderById")]
         [SwaggerResponse(200, type: typeof(Order))]
-        public IActionResult GetOrderById([FromRoute]long? orderId)
+        public virtual IActionResult GetOrderById([FromRoute]string orderId)
         { 
             string exampleJson = null;
             
@@ -89,7 +89,7 @@ namespace IO.Swagger.Controllers
         [Route("/store/order")]
         [SwaggerOperation("PlaceOrder")]
         [SwaggerResponse(200, type: typeof(Order))]
-        public IActionResult PlaceOrder([FromBody]Order body)
+        public virtual IActionResult PlaceOrder([FromBody]Order body)
         { 
             string exampleJson = null;
             
diff --git a/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/UserApi.cs b/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/UserApi.cs
index dd676fac85b0..b73cdd23c8f5 100644
--- a/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/UserApi.cs
+++ b/samples/server/petstore/aspnet5/src/IO.Swagger/Controllers/UserApi.cs
@@ -28,7 +28,7 @@ namespace IO.Swagger.Controllers
         [HttpPost]
         [Route("/user")]
         [SwaggerOperation("CreateUser")]
-        public void CreateUser([FromBody]User body)
+        public virtual void CreateUser([FromBody]User body)
         { 
             throw new NotImplementedException();
         }
@@ -43,7 +43,7 @@ namespace IO.Swagger.Controllers
         [HttpPost]
         [Route("/user/createWithArray")]
         [SwaggerOperation("CreateUsersWithArrayInput")]
-        public void CreateUsersWithArrayInput([FromBody]List<User> body)
+        public virtual void CreateUsersWithArrayInput([FromBody]List<User> body)
         { 
             throw new NotImplementedException();
         }
@@ -58,7 +58,7 @@ namespace IO.Swagger.Controllers
         [HttpPost]
         [Route("/user/createWithList")]
         [SwaggerOperation("CreateUsersWithListInput")]
-        public void CreateUsersWithListInput([FromBody]List<User> body)
+        public virtual void CreateUsersWithListInput([FromBody]List<User> body)
         { 
             throw new NotImplementedException();
         }
@@ -74,7 +74,7 @@ namespace IO.Swagger.Controllers
         [HttpDelete]
         [Route("/user/{username}")]
         [SwaggerOperation("DeleteUser")]
-        public void DeleteUser([FromRoute]string username)
+        public virtual void DeleteUser([FromRoute]string username)
         { 
             throw new NotImplementedException();
         }
@@ -92,7 +92,7 @@ namespace IO.Swagger.Controllers
         [Route("/user/{username}")]
         [SwaggerOperation("GetUserByName")]
         [SwaggerResponse(200, type: typeof(User))]
-        public IActionResult GetUserByName([FromRoute]string username)
+        public virtual IActionResult GetUserByName([FromRoute]string username)
         { 
             string exampleJson = null;
             
@@ -115,7 +115,7 @@ namespace IO.Swagger.Controllers
         [Route("/user/login")]
         [SwaggerOperation("LoginUser")]
         [SwaggerResponse(200, type: typeof(string))]
-        public IActionResult LoginUser([FromQuery]string username, [FromQuery]string password)
+        public virtual IActionResult LoginUser([FromQuery]string username, [FromQuery]string password)
         { 
             string exampleJson = null;
             
@@ -134,7 +134,7 @@ namespace IO.Swagger.Controllers
         [HttpGet]
         [Route("/user/logout")]
         [SwaggerOperation("LogoutUser")]
-        public void LogoutUser()
+        public virtual void LogoutUser()
         { 
             throw new NotImplementedException();
         }
@@ -151,7 +151,7 @@ namespace IO.Swagger.Controllers
         [HttpPut]
         [Route("/user/{username}")]
         [SwaggerOperation("UpdateUser")]
-        public void UpdateUser([FromRoute]string username, [FromBody]User body)
+        public virtual void UpdateUser([FromRoute]string username, [FromBody]User body)
         { 
             throw new NotImplementedException();
         }
diff --git a/samples/server/petstore/aspnet5/src/IO.Swagger/Models/Order.cs b/samples/server/petstore/aspnet5/src/IO.Swagger/Models/Order.cs
index 5b5a9b6d14e2..80c3bcfb69e7 100644
--- a/samples/server/petstore/aspnet5/src/IO.Swagger/Models/Order.cs
+++ b/samples/server/petstore/aspnet5/src/IO.Swagger/Models/Order.cs
@@ -23,7 +23,7 @@ namespace IO.Swagger.Models
         /// <param name="Quantity">Quantity.</param>
         /// <param name="ShipDate">ShipDate.</param>
         /// <param name="Status">Order Status.</param>
-        /// <param name="Complete">Complete (default to false).</param>
+        /// <param name="Complete">Complete.</param>
         public Order(long? Id = null, long? PetId = null, int? Quantity = null, DateTime? ShipDate = null, string Status = null, bool? Complete = null)
         {
             this.Id = Id;
@@ -31,15 +31,7 @@ namespace IO.Swagger.Models
             this.Quantity = Quantity;
             this.ShipDate = ShipDate;
             this.Status = Status;
-            // use default value if no "Complete" provided
-            if (Complete == null)
-            {
-                this.Complete = false;
-            }
-            else
-            {
-                this.Complete = Complete;
-            }
+            this.Complete = Complete;
             
         }