ASP NET MVC - Find Absolute Path to the App Data folder from Controller

Question

What is the correct way to find the absolute path to the App Data folder from a Controller in an ASP NET MVC project  I d like to be able to temporarily work with an  xml file and I don t want to hardcode the path   This does not work      HandleError  public class HomeController   Controller       public ActionResult Index                 string path   VirtualPathUtility ToAbsolute    App Data somedata xml                    do whatever           return View               I think outside of the web context VirtualPathUtility ToAbsolute   doesn t work  string path comes back as  C  App Data somedata xml   Where should I determine the path of the  xml file in an MVC app  global asax and stick it an application-level variable

User · Answer

string path   AppDomain CurrentDomain GetData  DataDirectory   ToString      This is probably a more  correct  way of getting it

User · Answer

I try to get in the habit of using HostingEnvironment instead of Server as it works within the context of WCF services too     HostingEnvironment MapPath     App Data PriceModels xml

User · Answer

ASP NET MVC1 -  MVC3  string path   HttpContext Current Server MapPath    App Data somedata xml        ASP NET MVC4  string path   Server MapPath    App Data somedata xml       MSDN Reference   HttpServerUtility MapPath Method

User · Answer

string filePath   HttpContext Current Server MapPath    folderName filename extension      OR  string filePath   HttpContext Server MapPath    folderName filename extension

User · Answer

Phil Haak has an example that I think is a bit more stable when dealing with paths with crazy     style directory separators  It also safely handles path concatenation  It comes for free in System IO  var fileName   Path GetFileName file FileName   var path   Path Combine Server MapPath    App Data uploads    fileName     However  you could also try  AppDomain CurrentDomain BaseDirector  instead of  Server MapPath

User · Answer

The most correct way is to use HttpContext Current Server MapPath    App Data     This means you can only retrieve the path from a method where the HttpContext is available  It makes sense  the App Data directory is a web project folder structure  1    If you need the path to   App Data from a class where you don t have access to the HttpContext you can always inject a provider interface using your IoC container   public interface IAppDataPathProvider       string GetAppDataPath        Implement it using your HttpApplication   public class AppDataPathProvider   IAppDataPathProvider       public string GetAppDataPath                 return MyHttpApplication GetAppDataPath              Where MyHttpApplication GetAppDataPath looks like   public class MyHttpApplication   HttpApplication          of course you can fetch amp store the value at Application Start     public static string GetAppDataPath                 return HttpContext Current Server MapPath    App Data               1  http   msdn microsoft com en-us library ex526337 28v vs 100 29 aspx

User · Answer

string Index   i              string FileName    Mutton    Index     xml               XmlDocument xmlDoc   new XmlDocument                 var path   Path Combine Server MapPath    Content FilesXML    FileName               xmlDoc Load path      Can use xmlDoc LoadXml YourString     this is the best Solution to get the path what is exactly need for now

[.net] ASP.NET MVC - Find Absolute Path to the App_Data folder from Controller

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