What is EmptyResult Asp.Net MVC? How to use EmptyResult in Asp.Net Core MVC?

 In ASP.NET MVC, the EmptyResult class is used to return an empty HTTP response to the client. Here's an example of how to use EmptyResult in a controller action method:

csharp
public EmptyResult MyAction()
{
    // Do some work

    // Return an empty result
    return new EmptyResult();
}

In this example, the MyAction method does some work and then returns an EmptyResult. The EmptyResult class does not have any properties or methods and simply returns an empty HTTP response to the client.

EmptyResult is useful when you want to return a response that does not have any content, such as in cases where you want to indicate that an operation was successful but there is no additional data to return.

You can also use null to return an empty response in some cases. For example, if your action method has a return type of ActionResult, you can return null to indicate that there is no content to return. Here's an example:

csharp
public ActionResult MyAction()
{
    // Do some work

    // Return null to indicate an empty response
    return null;
}

In this example, the MyAction method does some work and then returns null to indicate that there is no content to return. This works because ActionResult is the base class for all action result types in ASP.NET MVC, including EmptyResult.