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System.IO.Directory

 
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System.IO.Directory
nbarten
4 Apr, 2008 - 08:13 AM
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hi all.

Well, i wanted to use the System.IO.Directory library because i want to get all the files in a certain directory...

The problem is, when i type in Visual Studio 2008 at the first lines 'System.IO.' then i see only four options, but not Directory with them. So i decided to type it anyway, but it doesn't work, it just can't find the library i think.

I tried it also in Visual C# 2005 Express Edition, but with no luck. I have .NET Framework 3.5 installed (also downloaded it again and 'repaired' it, but still with no luck at all).

So i hope you guys can help.

Thanx
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Martyr2
RE: System.IO.Directory
4 Apr, 2008 - 08:51 AM
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Directory is an object of the System.IO namespace. So you can't specify it as if it was a separate namespace under the System.IO namespace.

At the top of the file just specify System.IO; nothing more. Then in your code you can type "Directory" and you will see the object there to use. You only use the dot notation at the top to include namespaces. Since the Directory object is in the System.IO namespace itself, you just include System.IO.

That is all you need. smile.gif
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nbarten
RE: System.IO.Directory
4 Apr, 2008 - 09:58 AM
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ah ok, thanks.

But then i still have a problem i don't understand. This is my little test code:

CODE
namespace xmltest
{
    class Program
    {
        Directory mapDir = new Directory("Maps");

        static void Main(string[] args)
        {
            
            //mapDir = new Directory("Maps");
            File[] files = mapDir.GetFiles();
            foreach (File f in files)
            {
                Console.WriteLine("{0}", f.FullName);
            }


Just a part of it of course. Now, it gives me this error:

'Error 1 Cannot declare a variable of static type 'System.IO.Directory'

Thanks for your help.

This post has been edited by nbarten: 4 Apr, 2008 - 09:59 AM
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zakary
RE: System.IO.Directory
4 Apr, 2008 - 10:26 AM
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change to
static Directory mapDir = new Directory("Maps");
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nbarten
RE: System.IO.Directory
4 Apr, 2008 - 10:29 AM
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don't work:

'Error 1 Cannot declare a variable of static type 'System.IO.Directory'

Very weird (well i think), because the Directory object isn't made in a static class?

This post has been edited by nbarten: 4 Apr, 2008 - 10:33 AM
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nbarten
RE: System.IO.Directory
4 Apr, 2008 - 10:43 AM
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Solved my problem, my C# book is a bit outdated i think.

This will work:

CODE
DirectoryInfo mapDir = new DirectoryInfo("Maps");
            FileInfo[] files = mapDir.GetFiles();
            
            foreach (FileInfo f in files)
            {
                Console.WriteLine("{0}", f.FullName);
            }


Thanks for all the help anyway. icon_up.gif
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Martyr2
RE: System.IO.Directory
4 Apr, 2008 - 12:05 PM
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csharp


String files[] = Directory.GetFiles("c:\mydirectory");




Its an object, a static object meaning you don't create an instance of it. You just use the methods and variables associated with it. DirectoryInfo will work but keep what I have said above in mind because you will need it in the future.

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