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I think I am doing this wrong, won't copy to relative path

public void Save_Token(string _Token)
{
var Token_Location = #".\token.txt";
using (StreamWriter sw = new StreamWriter(Token_Location))
{
sw.WriteLine(_Token);
}
}
I tried to get the token from the api (json) and I deserialized and saved it. I would like to write to the file to save for later. But I want this application to be ran on anyone's PC. So I don't want to use the full path.
I also tried
Path.Combine(Environment.CurrentDirectory,Token_Location);
still nothing is written, unless I use the full path.

You can't guarantee that the current user has write access to the folder from where the file is executed. There is a special folder (APP_DATA) that applications are supposed to use when storing user data on a computer:
public void Save_Token(string _Token)
{
var tokenDirectory = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "YourCompanyOrOrganizationName");
var tokenFile = Path.Combine(tokenDirectory, "token.txt");
Directory.CreateDirectory(tokenDirectory);
File.WriteAllText(tokenFile, _Token);
}
Your file will then be stored in a path like "C:\Users\yourusername\AppData\Roaming\YourCompanyOrOrganizationName\token.txt"
It is generally a bad idea to use a relative path in software source code because the "current working directory" of the process that the relative path is relative to can change over the runtime of the application.
Activities like showing a file open dialog or using a third-party component can unexpectedly change the current working directory so that it is dangerous to assume a certain current working directory.

How do i access and create txt files in the same directory as the program in c#

http://pastebin.com/DgpMx3Sx
Currently i have this, i need to find a way to make it so that as opposed to writing out the directory of the txt files, i want it to create them in the same location as the exe and access them.
basically i want to change these lines
string location = #"C:\Users\Ryan\Desktop\chaz\log.txt";
string location2 = #"C:\Users\Ryan\Desktop\chaz\loot.txt";
to something that can be moved around your computer without fear of it not working.

If you're saving the files in the same path as the executable file then you can get the directory using:
string appPath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);

Normally you wouldn't do that, mostly because the install path will be found in the Program Files folders, which require Administrative level access to be modified. You would want to store it in the Application Data folder. That way it is hidden, but commonly accessible through all the users.
You could accomplish such a feat by:
string path = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
string fullPath = Path.Combine(path, #"NameOfApplication");
With those first two lines you'll always have the proper path to a globally accessible location for the application.
Then when you do something you would simply combine the fullPath and the name of the file you attempt to manipulate with FileStream or StreamWriter.
If structured correctly it could be as simple as:
private static void WriteToLog(string file)
{
string path = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
string fullPath = Path.Combine(path, #"NameOfApplication");
// Validation Code should you need it.
var log = Path.Combine(fullPath, file);
using(StreamWriter writer = new StreamWriter(log))
{
// Data
}
}
You could obviously structure or make it better, this is just to provide an example. Hopefully this points you in the right direction, without more specifics then I can't be more help.
But this is how you can access data in a common area and write out to the file of your choice.

write to the file system in a directory

I would like to write to the file system in a directory C: \ directory name, for the moment I have this code:
if (! System.IO.File.Exists (HttpContext.Current.Server.MapPath (filename)))
{
TXTFile = new System.IO.StreamWriter (HttpContext.Current.Server.MapPath (filename));
}
else
{
TXTFile = System.IO.File.AppendText (HttpContext.Current.Server.MapPath (filename));
}
but in this way writes on the application folder.
How to fix it?

Just do
Path.Combine(#"C:\", filename)
instead of
HttpContext.Current.Server.MapPath (filename)
Ensure your application has write access to the destination.

It seems you are doing this from a web application?
Although it is possible (with the correct rights) to write to the C:\ root, it is not very good practice.
You'd probably be safer to save it somewhere else. Also look into this method Environment.GetFolderPath

How to read existing text files without defining path

Most of the examples shows how to read text file from exact location (f.e. "C:\Users\Owner\Documents\test1.txt"). But, how to read text files without writing full path, so my code would work when copied to other computers. With visual studio I added 2 text files to project (console project) and don't know best way to read those files. Hope I described my problem clearly. Maybe I needed to add those txt files differentely (like directly to same folder as .exe file)?

You could use Directory.GetCurrentDirectory:
var path = Path.Combine(Directory.GetCurrentDirectory(), "\\fileName.txt");
Which will look for the file fileName.txt in the current directory of the application.

If your application is a web service, Directory.CurrentDirectory doesn't work.
Use System.IO.Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory, "yourFileName.txt")) instead.

When you provide a path, it can be absolute/rooted, or relative. If you provide a relative path, it will be resolved by taking the working directory of the running process.
Example:
string text = File.ReadAllText("Some\\Path.txt"); // relative path
The above code has the same effect as the following:
string text = File.ReadAllText(
Path.Combine(Environment.CurrentDirectory, "Some\\Path.txt"));
If you have files that are always going to be in the same location relative to your application, just include a relative path to them, and they should resolve correctly on different computers.

You need to decide which directory you want the file to be relative to. Once you have done that, you construct the full path like this:
string fullPathToFile = Path.Combine(dir, fileName);
If you don't supply the base directory dir then you will be at the total mercy of whatever happens to the working directory of your process. That is something that can be out of your control. For example, shortcuts to your application may specify it. Using file dialogs can change it.
For a console application it is reasonable to use relative files directly because console applications are designed so that the working directory is a critical input and is a well-defined part of the execution environment. However, for a GUI app that is not the case which is why I recommend you explicitly convert your relative file name to a full absolute path using some well-defined base directory.
Now, since you have a console application, it is reasonable for you to use a relative path, provided that the expectation is that the files in question will be located in the working directory. But it would be very common for that not to be the case. Normally the working directory is used to specify where the user's input and output files are to be stored. It does not typically point to the location where the program's files are.
One final option is that you don't attempt to deploy these program files as external text files. Perhaps a better option is to link them to the executable as resources. That way they are bound up with the executable and you can completely side-step this issue.

You absolutely need to know where the files to be read can be located. However, this information can be relative of course so it may be well adapted to other systems.
So it could relate to the current directory (get it from Directory.GetCurrentDirectory()) or to the application executable path (eg. Application.ExecutablePath comes to mind if using Windows Forms or via Assembly.GetEntryAssembly().Location) or to some special Windows directory like "Documents and Settings" (you should use Environment.GetFolderPath() with one element of the Environment.SpecialFolder enumeration).
Note that the "current directory" and the path of the executable are not necessarily identical. You need to know where to look!
In either case, if you need to manipulate a path use the Path class to split or combine parts of the path.

As your project is a console project you can pass the path to the text files that you want to read via the string[] args
static void Main(string[] args)
{
}
Within Main you can check if arguments are passed
if (args.Length == 0){ System.Console.WriteLine("Please enter a parameter");}
Extract an argument
string fileToRead = args[0];
Nearly all languages support the concept of argument passing and follow similar patterns to C#.
For more C# specific see http://msdn.microsoft.com/en-us/library/vstudio/cb20e19t.aspx

This will load a file in working directory:
static void Main(string[] args)
{
string fileName = System.IO.Path.GetFullPath(Directory.GetCurrentDirectory() + #"\Yourfile.txt");
Console.WriteLine("Your file content is:");
using (StreamReader sr = File.OpenText(fileName))
{
string s = "";
while ((s = sr.ReadLine()) != null)
{
Console.WriteLine(s);
}
}
Console.ReadKey();
}
If your using console you can also do this.It will prompt the user to write the path of the file(including filename with extension).
static void Main(string[] args)
{
Console.WriteLine("****please enter path to your file****");
Console.Write("Path: ");
string pth = Console.ReadLine();
Console.WriteLine();
Console.WriteLine("Your file content is:");
using (StreamReader sr = File.OpenText(pth))
{
string s = "";
while ((s = sr.ReadLine()) != null)
{
Console.WriteLine(s);
}
}
Console.ReadKey();
}
If you use winforms for example try this simple example:
private void button1_Click(object sender, EventArgs e)
{
string pth = "";
OpenFileDialog ofd = new OpenFileDialog();
if (ofd.ShowDialog() == DialogResult.OK)
{
pth = ofd.FileName;
textBox1.Text = File.ReadAllText(pth);
}
}

There are many ways to get a path. See CurrentDirrectory mentioned. Also, you can get the full file name of your application by using
Assembly.GetExecutingAssembly().Location
and then use Path class to get a directory name.

Be careful about the leading \\
string path2 = "\\folderName\\fileName.json";
string text = File.ReadAllText(Path.Combine(Directory.GetCurrentDirectory(), path2));
If path2 does not include a root (for example, if path2 does not start with a separator character \\ or a drive specification), the result is a concatenation of the two paths, with an intervening separator character. If path2 includes a root, path2 is returned.
Path.Combine Method (System.IO) | Microsoft Learn

How can I save an Image to the File System?

I'm trying to create a folder on the directory where the .exe file is and save a picture in that folder.
Right now that folder doesn't exist so I'd like to be created. Here's the code I have:
public void SavePictureToFileSystem(string path, Image picture)
{
string pictureFolderPath = path + "\\" + ConfigurationManager.AppSettings["picturesFolderPath"].ToString();
picture.Save(pictureFolderPath + "1.jpg");
}
The Image isn't being saved to the pictureFolderPath but to the path variable. What do I need to accomplish this?
Thanks for the help! This is what I ended up with:
public void SavePictureToFileSystem(string path, Image picture)
{
var pictureFolderPath = Path.Combine(path, ConfigurationManager.AppSettings["picturesFolderPath"].ToString());
if (!Directory.Exists(pictureFolderPath))
{
Directory.CreateDirectory(pictureFolderPath);
}
picture.Save(Path.Combine(pictureFolderPath, "1.jpg"));
}

I suspect your problem is that ConfigurationManager.AppSettings["picturesFolderPath"].ToString() returns a folder-path that is empty or, more likely, does not end with a trailing back-slash. This would mean that the final constructed path would end up looking like c:\dir1.jpg rather than c:\dir\1.jpg, which is what I think you really want.
In any case, it's much better to rely onPath.Combinethan to try to deal with the combining logic yourself. It deals with precisely these sorts of corner-cases, plus, as a bonus, it's platform-independent.
var appFolderPath = ConfigurationManager.AppSettings["picturesFolderPath"]
.ToString();
// This part, I copied pretty much verbatim from your sample, expect
// using Path.Combine. The logic does seem a little suspect though..
// Does appFolder path really represent a subdirectory name?
var pictureFolderPath = Path.Combine(path, appFolderPath);
// Create folder if it doesn't exist
Directory.Create(pictureFolderPath);
// Final image path also constructed with Path.Combine
var imagePath = Path.Combine(pictureFolderPath, "1.jpg")
picture.Save(imagePath);

I suspect ConfigurationManager.AppSettings["picturesFolderPath"].ToString() might be empty, so the pictureFolderPath variable is only being set to the path value. Make sure it is set properly and the value is being returned. Put a breakpoint on that line and check it in the Watch/Immediate windows.

You could try to create the directory first:
Directory.CreateDirectory(pictureFolderPath);