I have a controller that passes data to a view:
public ViewResult Details(int id)
In the case that id is invalid i would like to return an empty or error view and not passing data to the Details view that is strongly typed and waits data that cannot arrive.
How can i handle generic error views?
We have an Error action on our base controllers which the real controllers inherit from. If the input fails validation, redirect to the Error action passing some error message text that will be shown in the view. This allows you to have a standard error view across all controller actions.
You could redirect to any view you would like:
return View("Error", "This is a error message");
The code above will redirect to the Error.cshtml view and pass a string with a message.
Just return your error view as required:
if( // id is invalid)
{
return View("MyErrorView");
}
If ID is invalid, do not return empty content, that is in fact typical story for HTTP status 404 - not found - in MVC, you can handle it easy, like this :
if (IdIsInvalid(id))
return HttpNotFound();
As an alternative, you can call
throw new HttpException(404, "NotFound");
and handle your 404 errors globally, for example with setting in your web.config :
<configuration>
<system.web>
<customErrors mode="On">
<error statusCode="404" redirect="~/NotFound"/>
</customErrors>
</system.web>
