Could not find path in the web application

Question

I am trying to write to a text file usingASP.NET 4.5 with c# using the following code:

using (System.IO.StreamWriter file = new System.IO.StreamWriter(@"./Experiment/main.txt", true))
{
file.WriteLine(DateTime.UtcNow.ToString() + " test");
}

And I am getting this exception:

"Could not find a part of the path 'C:\Windows\SysWOW64\inetsrv\Experiment\main.txt'."

The folder Experiment is the folder of my web application.

When you use a relative path in ASP.NET, it uses the working directory which is not your web root, it's where your IIS is running. — Tobberoth, Nov 14 '13 at 12:40

score 8 · Accepted Answer · edited May 23 '17 at 12:16

8

You need to give physical path instead of relative path, use Server.MapPath("~") to get the root path of your site and then append the path of file to it. You can learn more about Server.MapPath in this post.

using (System.IO.StreamWriter file = new System.IO.StreamWriter(Server.MapPath(@"~/Experiment/main.txt"), true))
{
     file.WriteLine(DateTime.UtcNow.ToString() + " test");
}

edited May 23 '17 at 12:16

Community

1
1

answered Nov 14 '13 at 12:37

Adil

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score 0 · Answer 2 · answered Nov 14 '13 at 13:08

Try this code

using (System.IO.StreamWriter file = new System.IO.StreamWriter(AppDomain.CurrentDomain.BaseDirectory+"Experiment/main.txt", true))
{
         DirectoryInfo dirInfo = new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory+"Experiment/main.txt");
            if (!dirInfo.Exists)
            {
                dirInfo.Create();
            }
     file.WriteLine(DateTime.UtcNow.ToString() + " test");
}

Could not find path in the web application

2 Answers2