42 lines
1.4 KiB
C#
42 lines
1.4 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System.Collections.Generic;
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using System.Linq;
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using Microsoft.AspNetCore.Mvc.Razor;
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namespace MvcSubAreaSample.Web
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{
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public class SubAreaViewLocationExpander : IViewLocationExpander
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{
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private const string _subAreaKey = "subarea";
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public IEnumerable<string> ExpandViewLocations(
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ViewLocationExpanderContext context,
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IEnumerable<string> viewLocations)
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{
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if (context.Values.ContainsKey(_subAreaKey))
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{
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var subArea = RazorViewEngine.GetNormalizedRouteValue(context.ActionContext, _subAreaKey);
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var subareaViewLocations = new string[]
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{
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"/Areas/{2}/Areas/" + subArea + "/Views/{1}/{0}.cshtml"
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};
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viewLocations = subareaViewLocations.Concat(viewLocations);
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}
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return viewLocations;
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}
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public void PopulateValues(ViewLocationExpanderContext context)
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{
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var subArea = context.ActionContext.ActionDescriptor.RouteConstraints.FirstOrDefault(
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s => s.RouteKey == "subarea" && !string.IsNullOrEmpty(s.RouteValue));
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if (subArea != null)
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{
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context.Values[_subAreaKey] = subArea.RouteValue;
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}
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}
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}
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}
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