в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:20:32Z

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==All Directories traverses all sub-directories under the root==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.IO.rupression;
using System.Net;
using System.Net.Mail;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Text;
public class MainClass
{
public static void Main()
{
DirectoryInfo root = new DirectoryInfo(@"C:\Program Files\");
DirectoryInfo[] dirs = root.GetDirectories("*", SearchOption.TopDirectoryOnly);
Console.WriteLine("{0} subdirectories:", root.FullName);
foreach (DirectoryInfo subDir in dirs)
{
Console.WriteLine(" {0}", subDir.Name);
}
}
}</source>
<pre class=codeResult>C:\Program Files\ subdirectories:
Adobe
AMD
ATI Technologies
Common Files
ComPlus Applications
CONEXANT</pre>

==Changing current directory to c:\\==

<source lang="csharp">using System;
using System.IO;
static class MainClass
{
static void Main()
{
Directory.SetCurrentDirectory(@"c:\");
}
}</source>

==Create directory structure==

<source lang="csharp">using System;
using System.IO.IsolatedStorage;
using System.IO;
class MainClass
{
static void Main(string[] args)
{
using (IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForAssembly())
{
store.CreateDirectory(@"MyDir\XmlData");
store.CreateDirectory("MyDir\\BinaryData");
store.CreateDirectory("MyDir/TextData");
}
}
}</source>

==Creating Subdirectory and Manipulating File==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
class Tester
{
public static void Main()
{
ExploreDirectory(new DirectoryInfo("c:\\"));
}
private static void ExploreDirectory(DirectoryInfo dir)
{
string newDirectory = "newTest";
DirectoryInfo newSubDir = dir.CreateSubdirectory(newDirectory);
FileInfo[] filesInDir = dir.GetFiles();
foreach (FileInfo file in filesInDir)
{
string fullName = newSubDir.FullName +"\\" + file.Name;
file.CopyTo(fullName);
Console.WriteLine(file.FullName);
}
filesInDir = newSubDir.GetFiles();
int counter = 0;
foreach (FileInfo file in filesInDir)
{
string fullName = file.FullName;
file.MoveTo(fullName + ".bak");
Console.WriteLine("{0} renamed to {1}",fullName, file.FullName);
}
newSubDir.Delete(true);
}
}</source>

==Delete Directory==

<source lang="csharp">using System;
using System.IO;
class MaionClass
{
public static void Main(String[] args)
{
try
{
Directory.Delete(@"C:\WinNT\MyFoo");
Directory.Delete(@"C:\WinNT\MyBar", true);
}
catch(IOException e)
{
Console.WriteLine(e.Message);
}
}
}</source>

==Directory Attributes==

<source lang="csharp">using System;
using System.IO;
class MainClass
{
public static void DecipherAttributes(FileAttributes f)
{
if ((f & FileAttributes.Archive) == FileAttributes.Archive)
Console.WriteLine("Archive");
if ((f & FileAttributes.rupressed) == FileAttributes.rupressed)
Console.WriteLine("Compressed");
if ((f & FileAttributes.Device) == FileAttributes.Device)
Console.WriteLine("Device");
if ((f & FileAttributes.Directory) == FileAttributes.Directory)
Console.WriteLine("Directory");
if ((f & FileAttributes.Encrypted) == FileAttributes.Encrypted)
Console.WriteLine("Encrypted");
if ((f & FileAttributes.Hidden) == FileAttributes.Hidden)
Console.WriteLine("Hidden");
if ((f & FileAttributes.NotContentIndexed) == FileAttributes.NotContentIndexed)
Console.WriteLine("NotContentIndexed");
if ((f & FileAttributes.Offline) == FileAttributes.Offline)
Console.WriteLine("Offline");
if ((f & FileAttributes.ReadOnly) == FileAttributes.ReadOnly)
Console.WriteLine("ReadOnly");
if ((f & FileAttributes.ReparsePoint) == FileAttributes.ReparsePoint)
Console.WriteLine("ReparsePoint");
if ((f & FileAttributes.SparseFile) == FileAttributes.SparseFile)
Console.WriteLine("SparseFile");
if ((f & FileAttributes.System) == FileAttributes.System)
Console.WriteLine("System");
if ((f & FileAttributes.Temporary) == FileAttributes.Temporary)
Console.WriteLine("Temporary");
}
public static void Main()
{
DirectoryInfo di = new DirectoryInfo("c:\\");

FileAttributes f = di.Attributes;
Console.WriteLine("Directory c:\\ has attributes:");
DecipherAttributes(f);
}
}</source>
<pre class=codeResult>Directory c:\ has attributes:
Directory
Hidden
System</pre>

==Directory.Exists==

<source lang="csharp">using System;
using System.IO;
static class MainClass
{
static void Main(string[] args)
{
Console.WriteLine(Directory.Exists("c:\\"));
}
}</source>
<pre class=codeResult>True</pre>

==DirectoryInfo: creation time, last write time, last access time==

<source lang="csharp">using System;
using System.IO;
class MainClass
{
public static void Main(string[] args)
{
FileInfo file = new FileInfo("c:\\test.txt");
// Display directory information.
DirectoryInfo dir = file.Directory;
if (dir.Exists)
{
Console.Write("Directory created: ");
Console.WriteLine(dir.CreationTime.ToString());
Console.Write("Directory last updated: ");
Console.WriteLine(dir.LastWriteTime.ToString());
Console.Write("Directory last accessed: ");
Console.WriteLine(dir.LastAccessTime.ToString());
}

}
}</source>
<pre class=codeResult>Directory created: 27/08/2006 3:07:02 PM
Directory last updated: 25/03/2007 2:04:08 PM
Directory last accessed: 25/03/2007 2:11:11 PM</pre>

==DirectoryInfo: Directory attribute list and Directory contains==

<source lang="csharp">using System;
using System.IO;
class MainClass
{
public static void Main(string[] args)
{
FileInfo file = new FileInfo("c:\\test.txt");
// Display directory information.
DirectoryInfo dir = file.Directory;
if (dir.Exists)
{
Console.Write("Directory attribute list: ");
Console.WriteLine(dir.Attributes.ToString());
Console.WriteLine("Directory contains: " + dir.GetFiles().Length.ToString() + " files");
}
}
}</source>
<pre class=codeResult>Directory attribute list: Hidden, System, Directory
Directory contains: 12 files</pre>

==Exploring Files And Sub directories==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
class Tester
{
static int dirCounter = 1;
static int fileCounter = 0;
public static void Main()
{
ExploreDirectory( new DirectoryInfo( "c:\\") );
}
static void ExploreDirectory( DirectoryInfo dir )
{
FileInfo[] filesInDir = dir.GetFiles();
foreach ( FileInfo file in filesInDir )
{
Console.WriteLine( "{0} [{1}] Size: {2} bytes",
file.Name,
file.LastWriteTime,
file.Length );
fileCounter++;
}
DirectoryInfo[] directories = dir.GetDirectories();
foreach ( DirectoryInfo newDir in directories )
{
dirCounter++; // increment the counter
ExploreDirectory( newDir );
}
}
}</source>

==Get Current Directory==

<source lang="csharp">using System;
using System.IO;
static class MainClass
{
static void Main()
{
Console.WriteLine("Using: " + Directory.GetCurrentDirectory());
}
}</source>
<pre class=codeResult>Using: C:\Java_Dev\WEB\dev\CSharp</pre>

==Get DirectoryInfo from FileInfo: name, parent directory name, directory exists==

<source lang="csharp">using System;
using System.IO;
class MainClass
{
public static void Main(string[] args)
{
FileInfo file = new FileInfo("c:\\test.txt");
// Display directory information.
DirectoryInfo dir = file.Directory;
Console.WriteLine("Checking directory: " + dir.Name);
Console.WriteLine("In directory: " + dir.Parent.Name);
Console.Write("Directory exists: ");
Console.WriteLine(dir.Exists.ToString());
}
}</source>
<pre class=codeResult>Checking directory: c:\
Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an ob
ject.
at MainClass.Main(String[] args)</pre>

==Get relative path==

<source lang="csharp">using System;
using System.IO;
static class MainClass
{
static void Main()
{
Console.WriteLine("The relative path "file.txt" " + Path.GetFullPath("file.txt"));
}
}</source>
<pre class=codeResult>c:\file.txt</pre>

==Get the files from the root directory==

<source lang="csharp">using System;
using System.IO;
class MainClass
{
public static void Main()
{
string[] aFiles = Directory.GetFiles("c:\\");
foreach (string s in aFiles)
Console.WriteLine(s);
}
}</source>
<pre class=codeResult>c:\AUTOEXEC.BAT
c:\boot.ini
c:\CONFIG.SYS
c:\hiberfil.sys
c:\initest.ini
c:\IO.SYS
c:\MSDOS.SYS
c:\myfile.txt
c:\NTDETECT.ru
c:\ntldr
c:\pagefile.sys
c:\records.bin
c:\Test.txt
c:\test.xml
c:\Testing.txt
c:\xmlWriterTest.xml</pre>

==List directory under a directory==

<source lang="csharp">using System;
using System.IO;
public class MainClass
{
static void Main(string[] args)
{
DirectoryInfo MyRoot = new DirectoryInfo(@"c:\projects");
DirectoryInfo[] MySub = MyRoot.GetDirectories();
foreach (DirectoryInfo D in MySub)
{
Console.WriteLine(D.Name);
}
}
}</source>

==List files under a directory==

<source lang="csharp">using System;
using System.IO;
public class MainClass
{
static void Main(string[] args)
{
DirectoryInfo MyRoot = new DirectoryInfo(@"c:\projects");
FileInfo[] MyFiles = MyRoot.GetFiles();
foreach (FileInfo F in MyFiles)
{
Console.WriteLine(F.Name);
}
}
}</source>
<pre class=codeResult>Testing.txt</pre>

==Modify directory structure==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Linq;

class Program
{
static void Main(string[] args)
{
DirectoryInfo dir = new DirectoryInfo(".");
// Create \MyFolder off initial directory.
dir.CreateSubdirectory("MyFolder");
// Capture returned DirectoryInfo object.
DirectoryInfo myDataFolder = dir.CreateSubdirectory(@"MyFolder2\Data");
// Prints path to ..\MyFolder2\Data.
Console.WriteLine("New Folder is: {0}", myDataFolder);
}
}</source>

==Recursely Explore Directories==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
class Tester
{
public static void Main()
{
ExploreDirectory(new DirectoryInfo("c:\\"));
}
private static void ExploreDirectory(DirectoryInfo dir)
{
Console.WriteLine("[{0}] {1} \n",dir.Name, dir.LastAccessTime);
DirectoryInfo[] directories = dir.GetDirectories();
foreach (DirectoryInfo newDir in directories)
{
ExploreDirectory(newDir);
}
}
}</source>

==Recursive Directory use==

<source lang="csharp">using System;
using System.IO;
class MainClass
{
public static void ShowDirectory(DirectoryInfo di, int intLevel)
{
string strPad = new String(" ", 2*intLevel);
Console.WriteLine(strPad + di.Name);
foreach (DirectoryInfo diChild in di.GetDirectories())
ShowDirectory(diChild, intLevel+1);
}
public static void Main()
{
DirectoryInfo di = new DirectoryInfo("c:\\");
ShowDirectory(di, 0);
}
}</source>
<pre class=codeResult>c:\
b
Documents and Settings
All Users
Application Data
Adobe
Acrobat
6.0
Replicate
Security
Microsoft
CoreCon
^CTerminate batch job (Y/N)? n</pre>

==Show basic directory info==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Linq;

class Program
{
static void Main(string[] args)
{
DirectoryInfo dir = new DirectoryInfo(@"C:\Windows");
// Dump directory information.
Console.WriteLine("***** Directory Info *****");
Console.WriteLine("FullName: {0}", dir.FullName);
Console.WriteLine("Name: {0}", dir.Name);
Console.WriteLine("Parent: {0}", dir.Parent);
Console.WriteLine("Creation: {0}", dir.CreationTime);
Console.WriteLine("Attributes: {0}", dir.Attributes);
Console.WriteLine("Root: {0}", dir.Root);
}
}</source>

==Traverse all files under the root==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.IO.rupression;
using System.Net;
using System.Net.Mail;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Text;
public class MainClass
{
public static void Main()
{
DirectoryInfo root = new DirectoryInfo(@"C:\Program Files\");
DirectoryInfo[] dirs = root.GetDirectories("*", SearchOption.TopDirectoryOnly);
Console.WriteLine("{0} subdirectories:", root.FullName);
FileInfo[] files = root.GetFiles();
Console.WriteLine("files:");
foreach (FileInfo file in files)
{
Console.WriteLine(" {0} ({1} bytes)", file.Name, file.Length);
}
}
}</source>
<pre class=codeResult>C:\Program Files\ subdirectories:
files:</pre>

==Use DirectoryInfo to create sub directory==

<source lang="csharp">using System;
using System.IO;
public class MainClass
{
static void Main(string[] args)
{
DirectoryInfo MyRoot = new DirectoryInfo(@"c:\projects");
MyRoot.CreateSubdirectory("MyFolder");
}
}</source>

==Use file filer on a directory==

<source lang="csharp">using System;
using System.IO;
static class MainClass
{
static void Main(string[] args)
{
DirectoryInfo dir = new DirectoryInfo("c:\\a");
FileInfo[] files = dir.GetFiles("*.gif");
// Display the name of all the files.
foreach (FileInfo file in files)
{
Console.Write("Name: " + file.Name + " ");
Console.WriteLine("Size: " + file.Length.ToString());
}
}
}</source>

==Using Directory type==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Linq;

class Program
{
static void Main(string[] args)
{
string[] drives = Directory.GetLogicalDrives();
foreach (string s in drives)
Console.WriteLine("--> {0} ", s);
try
{
Directory.Delete(string.Format(@"{0}\MyFolder", Environment.CurrentDirectory));
Directory.Delete(string.Format(@"{0}\MyFolder2", Environment.CurrentDirectory), true);
}
catch (IOException e)
{
Console.WriteLine(e.Message);
}
}
}</source>

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Csharp/CSharp Tutorial/File Directory Stream/Directory - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия