In ASP.NET MVC, how to define in which sequence my custom attributes are checked/applied?

Question

I'm currently investigating the possibility to use custom attributes derived from ActionFilterAttribute. I want to accomplish a couple of things with a couple of attributes. The thing is I want to make sure one of the attributes comes into play first, and not in any random sequence.

Example:

public class Feature1Attrubute : ActionFilterAttribute
{
    /* ... */
}

public class Feature2Attrubute : ActionFilterAttribute
{
    /* ... */
}

public class MyController : Controller
{
    [Feature1, Feature2]
    public ActionResult MyAction ()
    {
        /* ... */
    }
}

Is it so that attributes are applied in the sequence they mentioned in the method decoration?

If not, is there a way to define a particular sequence for a group of [custom] attributes?

Çağdaş Tekin · Accepted Answer · 2009-05-02 22:48:16Z

5

The base class ActionFilterAttribute has a property called Order. That's what you're looking for.

public class MyController : Controller
{
    [Feature1(Order = 1), Feature2(Order = 2)]
    public ActionResult MyAction ()
    {
        /* ... */
    }
}

answered May 2, 2009 at 22:48

Çağdaş Tekin

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1 Comment

User Over a year ago

Right, I remember something of the kind was mentioned in some article, without details however. Thanks. Will give it a try.

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