Phil HaackのAreaRouteHelper拡張機能をいくらか変更することで、問題を解決することになりました。
public static class AreaRouteHelper
{
public static void MapAreas(this RouteCollection routes, string url, string rootNamespace, string[] areas)
{
Array.ForEach(areas, area =>
{
Route route = new Route("{area}/" + url, new MvcRouteHandler());
route.Constraints = new RouteValueDictionary(new { area });
string areaNamespace = rootNamespace + ".Areas." + area + ".Controllers";
route.DataTokens = new RouteValueDictionary(new { namespaces = new string[] { areaNamespace } });
route.Defaults = new RouteValueDictionary(new { action = "Index", controller = "Landing", id = "" });
routes.Add(route);
});
}
public static void MapRootArea(this RouteCollection routes, string url, string rootNamespace, object defaults)
{
Route route = new Route(url, new MvcRouteHandler());
route.DataTokens = new RouteValueDictionary(new { namespaces = new string[] { rootNamespace + ".Controllers" } });
route.Defaults = new RouteValueDictionary(new { area = "", action = "Index", controller = "Lobby", id = "" });
routes.Add(route);
}
}
（基本的に、デフォルトのRootAreaのデフォルトから「root」という単語を削除し、デフォルトをHomeではなく標準の「Lobby」と「Landing」に変更する必要がありました。デフォルトの「root」をそのままにしておくと、「ルート」が機能しなかったフォルダ構造に）
次に、RegisterRoutesから次の2つのルートを削除し、次のように置き換えました。
routes.MapAreas("{controller}/{action}/{id}", "WebUI", new[] { "Admin", "Analysis" });
routes.MapRootArea("{controller}/{action}/{id}",
"WebUI",
new { controller = "Lobby", action = "Index", id = "" });
この修正には、エリア対応のビューエンジンが必要です。Haackのプロジェクトの1つは1.0Webフォームビューエンジンです。私はすでにどこかで別の投稿から削り取ったエリア認識のかみそりビューエンジンを持っていて、これは機能しました。正直なところ、どの投稿で見つけたか覚えていないか、著者の功績を称えるために直接リンクします。しかし、これはどのように見えるかです（ここの誰かがそれを書いた人を知っているなら、私はそれをその人に喜んで帰します）。ここでのマッピングは私のプロジェクトと一致し、調整なしではおそらく他の人のマッピングとは一致しないことに注意してください。
public class RazorAreaAwareViewEngine :RazorViewEngine
{
private static readonly string[] EmptyLocations = { };
public RazorAreaAwareViewEngine()
{
MasterLocationFormats = new string[]
{
"~/Views/{1}/{0}.master",
"~/Views/Shared/{0}.master"
};
ViewLocationFormats = new string[]
{
"~/Areas/{2}/Views/{1}/{0}.cshtml",
"~/Areas/{2}/Views/Shared/{0}.cshtml",
"~/{2}/{0}.cshtml",
"~/Views/{1}/{0}.cshtml",
"~/Views/Shared/{0}.cshtml",
};
PartialViewLocationFormats = ViewLocationFormats;
}
public override ViewEngineResult FindView(ControllerContext controllerContext, string viewName,string masterName, bool useCache)
{
if (controllerContext == null)
{
throw new ArgumentNullException("controllerContext");
}
if (string.IsNullOrEmpty(viewName))
{
throw new ArgumentNullException(viewName,
"Value cannot be null or empty.");
}
string area = GetArea(controllerContext);
return FindAreaView(controllerContext, area, viewName,
masterName, useCache);
}
public override ViewEngineResult FindPartialView(ControllerContext controllerContext, string partialViewName,bool useCache)
{
if (controllerContext == null)
{
throw new ArgumentNullException("controllerContext");
}
if (string.IsNullOrEmpty(partialViewName))
{
throw new ArgumentNullException(partialViewName,
"Value cannot be null or empty.");
}
string area = GetArea(controllerContext);
return FindAreaPartialView(controllerContext, area,
partialViewName, useCache);
}
protected string GetArea(ControllerContext controllerContext)
{
object area = null;
if (controllerContext.RouteData.DataTokens.ContainsKey("area"))
{
area = controllerContext.RouteData.DataTokens["area"];
}
if (area == null)
{
controllerContext.RouteData.Values.TryGetValue("area", out area);
}
if(area !=null)
{
return area.ToString();
}
return null;
}
protected virtual ViewEngineResult FindAreaView(ControllerContext controllerContext, string areaName, string viewName,string masterName, bool useCache)
{
string controllerName =
controllerContext.RouteData.GetRequiredString("controller");
string[] searchedViewPaths;
string viewPath = GetPath(controllerContext, ViewLocationFormats,
"ViewLocationFormats", viewName, controllerName, areaName, "View",
useCache, out searchedViewPaths);
string[] searchedMasterPaths;
string masterPath = GetPath(controllerContext, MasterLocationFormats,
"MasterLocationFormats", masterName, controllerName, areaName,
"Master", useCache, out searchedMasterPaths);
if (!string.IsNullOrEmpty(viewPath) &&
(!string.IsNullOrEmpty(masterPath) ||
string.IsNullOrEmpty(masterName)))
{
return new ViewEngineResult(CreateView(controllerContext, viewPath,
masterPath), this);
}
return new ViewEngineResult(
searchedViewPaths.Union<string>(searchedMasterPaths));
}
protected virtual ViewEngineResult FindAreaPartialView(ControllerContext controllerContext, string areaName,string viewName, bool useCache)
{
string controllerName =
controllerContext.RouteData.GetRequiredString("controller");
string[] searchedViewPaths;
string partialViewPath = GetPath(controllerContext,
ViewLocationFormats, "PartialViewLocationFormats", viewName,
controllerName, areaName, "Partial", useCache,
out searchedViewPaths);
if (!string.IsNullOrEmpty(partialViewPath))
{
return new ViewEngineResult(CreatePartialView(controllerContext,
partialViewPath), this);
}
return new ViewEngineResult(searchedViewPaths);
}
protected string CreateCacheKey(string prefix, string name,
string controller, string area)
{
return string.Format(CultureInfo.InvariantCulture,
":ViewCacheEntry:{0}:{1}:{2}:{3}:{4}:",
base.GetType().AssemblyQualifiedName,
prefix, name, controller, area);
}
protected string GetPath(ControllerContext controllerContext,string[] locations, string locationsPropertyName, string name,
string controllerName, string areaName, string cacheKeyPrefix,bool useCache, out string[] searchedLocations)
{
searchedLocations = EmptyLocations;
if (string.IsNullOrEmpty(name))
{
return string.Empty;
}
if ((locations == null) || (locations.Length == 0))
{
throw new InvalidOperationException(string.Format("The property " +
"'{0}' cannot be null or empty.", locationsPropertyName));
}
bool isSpecificPath = IsSpecificPath(name);
string key = CreateCacheKey(cacheKeyPrefix, name,
isSpecificPath ? string.Empty : controllerName,
isSpecificPath ? string.Empty : areaName);
if (useCache)
{
string viewLocation = ViewLocationCache.GetViewLocation(
controllerContext.HttpContext, key);
if (viewLocation != null)
{
return viewLocation;
}
}
if (!isSpecificPath)
{
return GetPathFromGeneralName(controllerContext, locations, name,
controllerName, areaName, key, ref searchedLocations);
}
return GetPathFromSpecificName(controllerContext, name, key,
ref searchedLocations);
}
protected string GetPathFromGeneralName(ControllerContext controllerContext,string[] locations, string name, string controllerName,
string areaName, string cacheKey, ref string[] searchedLocations)
{
string virtualPath = string.Empty;
searchedLocations = new string[locations.Length];
for (int i = 0; i < locations.Length; i++)
{
if (string.IsNullOrEmpty(areaName) && locations[i].Contains("{2}"))
{
continue;
}
string testPath = string.Format(CultureInfo.InvariantCulture,
locations[i], name, controllerName, areaName);
if (FileExists(controllerContext, testPath))
{
searchedLocations = EmptyLocations;
virtualPath = testPath;
ViewLocationCache.InsertViewLocation(
controllerContext.HttpContext, cacheKey, virtualPath);
return virtualPath;
}
searchedLocations[i] = testPath;
}
return virtualPath;
}
protected string GetPathFromSpecificName(ControllerContext controllerContext, string name, string cacheKey,ref string[] searchedLocations)
{
string virtualPath = name;
if (!FileExists(controllerContext, name))
{
virtualPath = string.Empty;
searchedLocations = new string[] { name };
}
ViewLocationCache.InsertViewLocation(controllerContext.HttpContext,
cacheKey, virtualPath);
return virtualPath;
}
protected static bool IsSpecificPath(string name)
{
char ch = name[0];
if (ch != '~')
{
return (ch == '/');
}
return true;
}
}
これらの変更を行った後、内側と外側の両方のアクションリンクが適切に生成され、内側と外側の両方のエリアをルーティングできました。