CODEWITHSUNDEEP
asp.net-mvc-3
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Reputation: 3236

What is the HttpDelete attribute doing

http://msdn.microsoft.com/en-us/library/system.web.mvc.httpdeleteattribute.aspx Represents an attribute that is used to restrict an action method so that the method handles only HTTP DELETE requests.

But what the heck does that mean for example Mvc 

 @Html.ActionLink("delete", new {id= model.PrimaryKey})//

Is that a Delete Request? how would the browser differentiate between 

 @Html.ActionLink("gridDisplay", new {id= model.PrimaryKey})//

controller 

[HttpDelete] //what is this how does it know?
public action result delete()
{
 delete();//web service deletes something just go with me here 
}
public action result gridDisplay()
{
  return view()
}

Upvotes: 3

Views: 6615

Answers (2)

vcsjones
vcsjones

Reputation: 141688

Delete is an HTTP verb, just like GET, PUT, and POST. This attribute restricts the action method to only handle HTTP delete requests.

It's typical to see this as part of a RESTful web service. This makes it entirely clear that the HTTP request will perform some type of deletion.

You can't just link to an action that will perform an HTTP delete. A link in a browser will usually issue a GET. I would expect you to get a 404 from clicking that link.

Upvotes: 6

Pankaj Upadhyay
Pankaj Upadhyay

Reputation: 13594

First of all, none of the View Code you showed is a delete and won't be treated as an HTTP DELETE verb.

The controller code you shown signifies to an action method decorated with HttpDelete, which means that this code will be executed on Delete request with the same name as the action name.

How does it know it ?

It doesn't. Your View code will have a similar link like HTTP.Post, namely HTTP.Delete link which will direct to this action

Upvotes: 0

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