Programming Forums > Application Development > C#

teishu · Jun 6th, 2008, 10:06 AM

Hi,

I'm having trouble referencing files relativly. Here is my file structure:

- BH
     - System
            *BH.exe (My application)
            *Various.dlls
     - Logs
            *Error.log
            *General.log
     - Temp
            *Database.mdb

I'm trying to access the Error.log file from BH.exe, i'm using the following:

(Toggle Plain Text)

string ErrorFile = @"..\Logs\Error.log";
StreamWriter sw = new StreamWriter(ErrorFile, true);

Can anyone see what is wrong with this ?

I'd be very greatful if someone could point me in the right direction.

Cheers

The Dark · Jun 8th, 2008, 5:49 PM

You need to use \\ to put a backslash into a hard coded string in c++. Otherwise the \ character is used to escape the next character on.

(Toggle Plain Text)

string ErrorFile = @"..\\Logs\\Error.log";

Also note that the relative path is relative to the directory your program started in, which may not be the program's directory. If you are using a Window's shortcut to start the program, you can choose whichever directory you want. You might have to allow for this in your program.

xavier · Jun 9th, 2008, 12:04 AM

This is C# and he used an @ in front of the string - so he doesn't need to escape anything.

Your second point is probably what's happened
"Also note that the relative path is relative to the directory your program started in, which may not be the program's directory. If you are using a Window's shortcut to start the program, you can choose whichever directory you want. You might have to allow for this in your program."

The Dark · Jun 9th, 2008, 1:45 AM

Oops, my bad - didn't notice the forum

Maybe the second part of my reply is still valid.

Jun 6th, 2008, 10:06 AM	#1
teishu Programmer Join Date: May 2006 Posts: 51 Rep Power: 3	Relative File References Hi, I'm having trouble referencing files relativly. Here is my file structure: (Toggle Plain Text) - BH - System BH.exe (My application) Various.dlls - Logs Error.log General.log - Temp Database.mdb - BH - System BH.exe (My application) Various.dlls - Logs Error.log General.log - Temp Database.mdb I'm trying to access the Error.log file from BH.exe, i'm using the following: (Toggle Plain Text) string ErrorFile = @"..\Logs\Error.log"; StreamWriter sw = new StreamWriter(ErrorFile, true); string ErrorFile = @"..\Logs\Error.log"; StreamWriter sw = new StreamWriter(ErrorFile, true); Can anyone see what is wrong with this ? I'd be very greatful if someone could point me in the right direction. Cheers __________________ AMD Athlon X2 4200+ -- Asus V3-M2V890 -- 2GB Kingston -- Vista Ultimate 32bit + Ubuntu 8.04 Intel C2D T5870 2.0GHZ -- Vostro 1510 -- 2048MB -- Windows XP SP2 *ASCII stupid question, get a stupid ANSI !*

Jun 8th, 2008, 5:49 PM	#2
The Dark Expert Programmer Join Date: Jun 2005 Posts: 852 Rep Power: 4	Re: Relative File References You need to use \\ to put a backslash into a hard coded string in c++. Otherwise the \ character is used to escape the next character on. (Toggle Plain Text) string ErrorFile = @"..\\Logs\\Error.log"; string ErrorFile = @"..\\Logs\\Error.log"; Also note that the relative path is relative to the directory your program started in, which may not be the program's directory. If you are using a Window's shortcut to start the program, you can choose whichever directory you want. You might have to allow for this in your program.

Jun 9th, 2008, 12:04 AM	#3
xavier Professional Programmer Join Date: Oct 2004 Location: .ro Posts: 383 Rep Power: 4	Re: Relative File References This is C# and he used an @ in front of the string - so he doesn't need to escape anything. Your second point is probably what's happened "Also note that the relative path is relative to the directory your program started in, which may not be the program's directory. If you are using a Window's shortcut to start the program, you can choose whichever directory you want. You might have to allow for this in your program." __________________ Don't take life too seriously, it's not permanent !

Jun 9th, 2008, 1:45 AM	#4
The Dark Expert Programmer Join Date: Jun 2005 Posts: 852 Rep Power: 4	Re: Relative File References Oops, my bad - didn't notice the forum Maybe the second part of my reply is still valid.

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Programming Forums > Application Development > C#

Relative File References