src/System.Web.Mvc/ControllerInstanceFilterProvider.cs


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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.

using System.Collections.Generic;

namespace System.Web.Mvc
{
    public class ControllerInstanceFilterProvider : IFilterProvider
    {
        public IEnumerable<Filter> GetFilters(ControllerContext controllerContext, ActionDescriptor actionDescriptor)
        {
            if (controllerContext.Controller != null)
            {
                // Use FilterScope.First and Order of Int32.MinValue to ensure controller instance methods always run first
                yield return new Filter(controllerContext.Controller, FilterScope.First, Int32.MinValue);
            }
        }
    }
}