How can I use Server.MapPath() from global.asax?

Question

I need to use Server.MapPath() to combine some files path that I store in the web.config.

However, since Server.MapPath() relies on the current HttpContext (I think), I am unable to do this. When trying to use the method, even though its "available", I get the following exception:

Server operation is not available in this context.

Is there another method that can map a web root relative directory such as ~/App_Data/ to the full physical path such as C:\inetpub\wwwroot\project\App_data\ ?

Answer 1

You could try HttpContext.Current.Server.MapPath("/") - That's how I have referenced it before in classes.

Answer 2

You could try System.Web.Hosting.HostingEnvironment.MapPath().

No HttpContext required.

Answer 3

When in Global.asax, use the context object:

context.Server.mappath()

Context lets you access also the session collection, the request object, the response object. Very useful when you want to log errors, for example

Answer 4

Use AppDomain.CurrentDomain.BaseDirectory because Context might return null !!