Cannot access file from MVC5 class

Question

I have a class that inherits from DelegatingHandler. In one of the methods of that class I am trying to access a text files like so:

string filePath = HttpContext.Current.Server.MapPath("~/test.txt");

if (!string.IsNullOrWhiteSpace(filePath))
{
    using (StreamWriter w = File.AppendText(filePath))
    {
        w.WriteLine(string.Format("{0}|{1})", DateTime.Now, ex.ToString()));
    }
}

But I keep getting a null error on HttpContext.Current cannot be null

string filePath = HttpContext.Current.Server.MapPath("~/test.txt");

What could the issue be? I have made sure the file does exist at the site root?

Have you given the administrator priviliges to your compiler ? — omerv2
– omerv2, Commented Nov 7, 2016 at 12:52

Jani Devang · Accepted Answer · 2016-11-07 16:53:59Z

1

string filePath = Server.MapPath("~/test.txt");

Use this Server.MapPath, it return the current full path of application

edited Nov 7, 2016 at 16:53

answered Nov 7, 2016 at 12:50

Jani Devang

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