剛剛愛上MVC3.0，幾個不眠夜的學習越來越有趣。今天隨手嘗試自定義Mvc3.0的視圖引擎，雖然已成功，但是還發現有點小疑問。隨手貼出來希望大家指教指教。

MVC的視圖文件目錄被固定/Views目錄內，區域視圖文件也是被固定在/Areas目錄下，出于好奇和對目錄名的敏感，嘗試修改它。通過reflector找到視圖引擎的構造接口類VirtualPathProviderViewEngine

在MVC2.0中，自定義自己的視圖引擎，繼承它即可，但在3.0中，我發現繼承它會缺少一個函數。再reflector獲得了BuildManagerViewEngine的抽象類，因為RazorViewEngine繼承的是該抽象類。

所以最直接還是在自己的視圖引擎中繼承它。

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);        }    }

NET技術：也玩MVC3.0 Razor自定義視圖引擎來修改默認的Views目錄結構，轉載需保留來源！

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