Relative Paths in ASP.Net

Question

I am trying to design a web form in ASP.NET using Visual Studio Express 2012.

I need to take data from some text boxes, and write it to a Text file.

This is a very simple program, but I am having trouble setting the file path.

This application will be sent to someone else, and they have to run the project from their computer.

The file I want is called Database.txt and it is found in D:\Project\bin\Database.txt.

So if he pastes this folder in his Desktop, it becomes C:\Users\Desktop\Project\bin\Database.txt.

I am having trouble setting a dynamic path that can find this file regardless of where the project folder is.

Where is that file, on the user's computer, or the server? From asp.net you can only access the server! — Hans Keﬆing
– Hans Keﬆing, Commented Apr 6, 2013 at 10:22
I prefer avoiding use of absolute path while writing into files.. You can use Server.MapPath method to access your application directory — Raghuveer
– Raghuveer, Commented Apr 6, 2013 at 10:34
Unlike forum sites, we don't use "Thanks", or "Any help appreciated", or signatures on Stack Overflow. See "Should 'Hi', 'thanks,' taglines, and salutations be removed from posts?. — John Saunders
– John Saunders, Commented Apr 6, 2013 at 10:48

Ken Clark · Accepted Answer · 2013-04-06 10:26:38Z

2

Use this code:

public void WriteToFile(String text)
{
    string logFileName = Server.MapPath("~/bin/DataBase.txt");
    using (StreamWriter writer = File.AppendText(logFileName))
    {
        writer.WriteLine(text);
        writer.Flush();
        writer.Close();
    }
}

answered Apr 6, 2013 at 10:26

Ken Clark

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1 Comment

Nom Over a year ago

Thank you for the quick response! But this is in C sadly, My project is based off VB. Or is there some way to integrate the two? Thanks in advance again!

Community · Accepted Answer · 2017-05-23 12:09:34Z

1

use Server.MapPath("/") to get physica path of ur virtual directory

see this. post for server.mappath Server.MapPath("."), Server.MapPath("~"), Server.MapPath(@"\"), Server.MapPath("/"). What is the difference?

edited May 23, 2017 at 12:09

CommunityBot

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answered Apr 6, 2013 at 10:38

Amit Gaikwad

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Comments

शेखर · Accepted Answer · 2013-04-06 10:23:47Z

0

What you can do is put the path in web.config file and set the values as per requirement.

Here is some sample code that should help you

This goes into your web.config.

<configuration>
    <appSettings>
        <add key="myFilePath" value="C:\\whatever\\Data\\"/>
    </appSettings>
</configuration>

And this is how you read it:

path = System.Web.Configuration.WebConfigurationManager.AppSettings["myFilePath"].ToString();

answered Apr 6, 2013 at 10:23

शेखर

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6 Comments

Raghuveer Over a year ago

What if other computer doesn't have that path/access permissions?

शेखर Over a year ago

he will have to share the folder for the user who is running the IIS.

Raghuveer Over a year ago

Then why can't you use Server.MapPath? instead of setting manually

शेखर Over a year ago

you can use that also but that's a path where all you files(code files dll etc) will be kept. And you should not keep your file there.

Raghuveer Over a year ago

Why? We can create a folder with name log or temp in root of the application folder. We can use that folder right? and that will not effect other files(code or DLL).. This way all our application files reside only in one folder not on different folders.. This way we can reduces the maintenance of file system also for our website..

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