ASP MVC C#: Is it possible to pass dynamic values into an attribute?

Question

Okay I\'m very new to C# and i\'m trying to create a little website using ASP MVC2.

I want to create my own authorization attribute. but i need to pass some values i

Answer 1

Use the value provider:

public class CustomAuthorizeAttribute : FilterAttribute, IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationContext filterContext)
    {
        var result = filterContext.Controller.ValueProvider.GetValue("GroupId"); //groupId should be of type `ValueProviderResult`

        if (result != null)
        {
            int groupId = int.Parse(result.AttemptedValue);

            //Authorize the user using the groupId   
        }
   }

}

This article may help you.

HTHs,
Charles