MVC的视图文件目录被固定/Views目录内，区域视图文件也是被固定在/Areas目录下，出于好奇和对目录名的敏感，尝试修改它。通过reflector找到视图引擎的构造接口类VirtualPathProviderViewEngine
在MVC2.0中，自定义自己的视图引擎，继承它即可，但在3.0中，我发现继承它会缺少一个函数。再reflector获得了BuildManagerViewEngine的抽象类，因为RazorViewEngine继承的是该抽象类。
所以最直接还是在自己的视图引擎中继承它。
public class myViewEngine : BuildManagerViewEngine { // Fields internal static readonly string ViewStartFileName = "_ViewStart"; // Methods public myViewEngine() : this(null) { } public myViewEngine(IViewPageActivator viewPageActivator) : base(viewPageActivator) { base.AreaViewLocationFormats = new string[] { "~/Areas/{2}/Views/{1}/{0}.cshtml", "~/Areas/{2}/Views/{1}/{0}.vbhtml", "~/Areas/{2}/Views/Shared/{0}.cshtml", "~/Areas/{2}/Views/Shared/{0}.vbhtml" }; base.AreaMasterLocationFormats = new string[] { "~/Areas/{2}/Views/{1}/{0}.cshtml", "~/Areas/{2}/Views/{1}/{0}.vbhtml", "~/Areas/{2}/Views/Shared/{0}.cshtml", "~/Areas/{2}/Views/Shared/{0}.vbhtml" }; base.AreaPartialViewLocationFormats = new string[] { "~/Areas/{2}/Views/{1}/{0}.cshtml", "~/Areas/{2}/Views/{1}/{0}.vbhtml", "~/Areas/{2}/Views/Shared/{0}.cshtml", "~/Areas/{2}/Views/Shared/{0}.vbhtml" }; base.ViewLocationFormats = new string[] { "~/T/{1}/{0}.cshtml", "~/T/Shared/{0}.cshtml" }; base.MasterLocationFormats = new string[] { "~/T/{1}/{0}.cshtml", "~/T/Shared/{0}.cshtml" }; base.PartialViewLocationFormats = new string[] { "~/T/{1}/{0}.cshtml", "~/T/Shared/{0}.cshtml" }; base.FileExtensions = new string[] { "cshtml", "vbhtml" }; } protected override IView CreatePartialView(ControllerContext controllerContext, string partialPath) { string layoutPath = null; bool runViewStartPages = false; IEnumerable<string> fileExtensions = base.FileExtensions; return new RazorView(controllerContext, partialPath, layoutPath, runViewStartPages, fileExtensions, base.ViewPageActivator); } protected override IView CreateView(ControllerContext controllerContext, string viewPath, string masterPath) { string layoutPath = masterPath; bool runViewStartPages = true; IEnumerable<string> fileExtensions = base.FileExtensions; return new RazorView(controllerContext, viewPath, layoutPath, runViewStartPages, fileExtensions, base.ViewPageActivator); } }
上面是原Razor视图引擎的构造类，我只是拷贝下来修改修改我希望的目录结构，比如将原Views目录改成了T，然后在程序初始化的时候，注册加入这个自己的视图引擎类。
ViewEngines.Engines.Clear();
ViewEngines.Engines.Add(new myViewEngine());
将项目中Views目录改名T，调试成功。这样，以后的目录结构我们自己可以任意定义。非常方便。
但是，有人可能会说那6个目录定义属性都是public的，可以直接调出来修改，结果我也这样试过，没成功，无论我直接调用RazorViewEngine封装，还是VirtualPathProviderViewEngine继承后为属性设定值。都没成功，可能我的方法有问题。 如果你知道，希望可以告诉我。
另外这样自定义目录结构后，在View和Controller之间不能定位了，VS环境还是认为Views目录是视图文件目录，自己定义的T目录没有了“脚手架”...
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