So far we have seen the following built-in action result types and the action helper methods that return them.
| Action Result | Helper Method | Link |
| ContentResult | Content | Content Result: Day 9 |
| RedirectResult | Redirect | Redirect Result: Day 10 |
| ViewResult | View | View Result: Day 11 |
| JavaScriptResult | JavaScript | JavaScript Result: Day 12 |
| JsonResult | Json | JSON Result: Day 13 |
| HttpStatusCodeResult HttpUnauthorizedResult HttpNotFoundResult | HttpNotFound | HttpNotFound Result: Day 14 |
| FileResult FilePathResult | File File Result: Day 15 |
Now let's see the custom action result method step-by-step:
Create a MVC project from the "Empty" template.
Right-click on the project and select "Add" > "Class".
Name it "XMLResult".
Inherit the XMLResult class from ActionResult and override the "ExecuteResult" method.
Create an object of "HttpResponseBase" class, that is a base class for classes that provides Http response information from an ASP.NET operations.
Set the content type to application/XML. Create a parameterized constructor of the XMLResult class and pass a datatable as the parameter. Assign a datatable objet to the local datatable object inside the constructor. Create a dataset object inside the ExecuteResult method and add a datatable to that object.
Now add a controller. Right-click on "Controllers" then select "Add" >> "Controller".
Select "MVC 5 Controller – Empty" and press the "Add" button.
Name it as follows:
Create a datatable object and fill it with some values in the Index action result method.
Return XMLResult with datatable.
Now run the project and you will see that our datatable is converted into XML using our custom action result.
