Question

I’m reading a file that may or may not be on the server like this:

string TheFile = System.IO.File.
ReadAllText(HttpContext.Current.Server.MapPath("~\\Scripts\\MyScript.js"));

If the file is not there, it throws an exception. I could control this with a try/catch but I was wondering if there’s a way to know if a file exists using a less dramatic approach.

Thanks for your suggestions.

Answer 1

You can do it this way by giving relative path in MapPath with forward slash. More about MapPath as under.

• Server.MapPath(“.”) returns the current physical directory of the file (e.g. aspx) being executed
• Server.MapPath(“..”) returns the parent directory

• Server.MapPath(“~”) returns the physical path to the root of the
  application

• Server.MapPath(“/”) returns the physical path to the root
  of the domain name

  if(File.Exists(HttpContext.Current.Server.MapPath("~/Scripts/MyScript.js"))
  { 
  
  }