в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:14:37Z

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==Accessing Environment Settings:==

<source lang="csharp">using System;
class MainClass
{
public static void Main()
{
Console.WriteLine("Command Line: {0}", Environment.rumandLine);
Console.WriteLine("Current Directory: {0}", Environment.CurrentDirectory);
Console.WriteLine("Machine Name: {0}", Environment.MachineName);
Console.WriteLine("Stack Trace: {0}", Environment.StackTrace);
Console.WriteLine("System Directory: {0}", Environment.SystemDirectory);
Console.WriteLine("Tick Count: {0}", Environment.TickCount);
Console.WriteLine("Version: {0}", Environment.Version);
Console.WriteLine("Working Set: {0}", Environment.WorkingSet);

}
}</source>
<pre class=codeResult>Command Line: main
Current Directory: C:\Java_Dev\WEB\dev\CSharp
Machine Name: nfex
Stack Trace: at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
at System.Environment.get_StackTrace()
at MainClass.Main()
System Directory: C:\WINDOWS\system32
Tick Count: 753202203
Version: 2.0.50727.42
Working Set: 6426624</pre>

==Accessing Environment Settings: Environment.CurrentDirectory and SystemDirectory==

<source lang="csharp">using System;
class MainClass
{
public static void Main()
{
Console.WriteLine("Current Directory: {0}", Environment.CurrentDirectory);
Console.WriteLine("System Directory: {0}", Environment.SystemDirectory);
}
}</source>
<pre class=codeResult>Current Directory: C:\Java_Dev\WEB\dev\CSharp
System Directory: C:\WINDOWS\system32</pre>

==Accessing Environment Settings: Environment.MachineName and Environment.Version==

<source lang="csharp">using System;
class MainClass
{
public static void Main()
{
Console.WriteLine("Machine Name: {0}", Environment.MachineName);
Console.WriteLine("Version: {0}", Environment.Version);

}
}</source>
<pre class=codeResult>Machine Name: nfex
Version: 2.0.50727.42</pre>

==Accessing Environment Settings: Environment.StackTrace==

<source lang="csharp">using System;
class MainClass
{
public static void Main()
{
Console.WriteLine("Stack Trace: {0}", Environment.StackTrace);

}
}</source>
<pre class=codeResult>Stack Trace: at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
at System.Environment.get_StackTrace()
at MainClass.Main()</pre>

==Accessing Environment Settings: Environment Variables==

<source lang="csharp">using System;
using System.Collections;
class MainClass
{
public static void Main()
{
Console.WriteLine("Environment Variables");
foreach (DictionaryEntry var in Environment.GetEnvironmentVariables())
Console.WriteLine("{0}={1}", var.Key, var.Value);

}
}</source>
<pre class=codeResult>Environment Variables
Path=C:\Program Files\Microsoft.NET\SDK\v2.0\Bin;C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;C:\Pr
ogram Files\Microsoft Visual Studio 8\VC\bin;C:\Program Files\Microsoft Visual Studio 8\Common7\IDE;
...
...</pre>

==Accessing Environment Settings: Get OS version==

<source lang="csharp">using System;
class MainClass
{
public static void Main(string[] args)
{
Console.WriteLine("Current OS:\n{0}\n", Environment.OSVersion);
}
}</source>
<pre class=codeResult>Current OS:
Microsoft Windows NT 5.1.2600 Service Pack 2</pre>

==Accessing Environment Settings: Logical Drives==

<source lang="csharp">using System;
using System.Collections;
class MainClass
{
public static void Main()
{
Console.WriteLine("Logical Drives");
foreach (string drive in Environment.GetLogicalDrives())
Console.WriteLine(" {0}", drive);

}
}</source>
<pre class=codeResult>Logical Drives
C:\
D:\</pre>

==Access the command-line arguments directly through Environment.CommandLine==

<source lang="csharp">using System;
class MainClass
{
public static void Main(string[] args)
{
Console.WriteLine(Environment.rumandLine);
foreach (string s in Environment.GetCommandLineArgs())
{
Console.WriteLine(s);
}
}
}</source>
<pre class=codeResult>main
main</pre>

==Enumerate all special folders and display them==

<source lang="csharp">using System;
class MainClass
{
public static void Main()
{
foreach (Environment.SpecialFolder s in
Enum.GetValues(typeof(Environment.SpecialFolder)))
{
Console.WriteLine("{0} folder : {1}",
s, Environment.GetFolderPath(s));
}
}
}</source>
<pre class=codeResult>Desktop folder : C:\Documents and Settings\Joe\Desktop
Programs folder : C:\Documents and Settings\Joe\Start Menu\Programs
Personal folder : C:\Documents and Settings\Joe\My Documents
Personal folder : C:\Documents and Settings\Joe\My Documents
Favorites folder : C:\Documents and Settings\Joe\Favorites
Startup folder : C:\Documents and Settings\Joe\Start Menu\Programs\Startup
Recent folder : C:\Documents and Settings\Joe\Recent
SendTo folder : C:\Documents and Settings\Joe\SendTo
StartMenu folder : C:\Documents and Settings\Joe\Start Menu
MyMusic folder : C:\Documents and Settings\Joe\My Documents\My Music
DesktopDirectory folder : C:\Documents and Settings\Joe\Desktop
MyComputer folder :
Templates folder : C:\Documents and Settings\Joe\Templates
ApplicationData folder : C:\Documents and Settings\Joe\Application Data
LocalApplicationData folder : C:\Documents and Settings\Joe\Local Settings\Application Data
InternetCache folder : C:\Documents and Settings\Joe\Local Settings\Temporary Internet Files
Cookies folder : C:\Documents and Settings\Joe\Cookies
History folder : C:\Documents and Settings\Joe\Local Settings\History
CommonApplicationData folder : C:\Documents and Settings\All Users\Application Data
System folder : C:\WINDOWS\system32
ProgramFiles folder : C:\Program Files
MyPictures folder : C:\Documents and Settings\Joe\My Documents\My Pictures
CommonProgramFiles folder : C:\Program Files\Common Files</pre>

==Environment.NewLine==

<source lang="csharp">using System;
using System.IO;
static class MainClass
{
static void Main(string[] args)
{
Console.WriteLine(Environment.NewLine);
}
}</source>

==Expand Environment Variables==

<source lang="csharp">using System;
using System.Collections;
class MainClass
{
public static void Main()
{
Console.WriteLine(Environment.ExpandEnvironmentVariables(
"The Path on %computername% is %Path%"));

}
}</source>
<pre class=codeResult>The Path on nfex is C:\Program Files\Microsoft.NET\SDK\v2.0\Bin;
...</pre>

==Get the drives on this box==

<source lang="csharp">using System;
class MainClass
{
public static void Main(string[] args)
{
string[] drives = Environment.GetLogicalDrives();
for(int i = 0; i < drives.Length; i++)
Console.WriteLine("Drive {0} : {1}", i, drives[i]);
}
}</source>
<pre class=codeResult>Drive 0 : C:\
Drive 1 : D:\</pre>

==Is AppDomain Finalizing For Unload(), Environment.HasShutdownStarted==

<source lang="csharp">using System;
using System.Runtime.InteropServices;
using System.Diagnostics;
public sealed class MainClass
{
static void Main()
{
AppDomain currentDomain = AppDomain.CurrentDomain;
if( !currentDomain.IsFinalizingForUnload() &&!Environment.HasShutdownStarted ) {
Console.WriteLine( "Failed to dispose of object!!!" );
Console.WriteLine( "Object allocated at:" );
}
}
}</source>
<pre class=codeResult>Failed to dispose of object!!!
Object allocated at:</pre>

==Retrieve all environment variables targeted at the process==

<source lang="csharp">using System;
using System.Collections;
class MainClass
{
public static void Main()
{
IDictionary vars = Environment.GetEnvironmentVariables(
EnvironmentVariableTarget.Process);
foreach (string s in vars.Keys)
{
Console.WriteLine(s + " = " + vars[s]);
}

}
}</source>
<pre class=codeResult>Path = C:\Program Files\Microsoft.NET\SDK\v2.0\Bin;
...
...</pre>

==Retrieve a named environment variable==

<source lang="csharp">using System;
using System.Collections;
class MainClass
{
public static void Main()
{
Console.WriteLine("Path = " +
Environment.GetEnvironmentVariable("Path"));
}
}</source>
<pre class=codeResult>Path = C:\Program Files\Microsoft.NET\SDK\v2.0\Bin;
...</pre>

==Unload the appdomains and check the working set==

<source lang="csharp">using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Security;
using System.Security.Permissions;
using System.Security.Policy;
public class MainClass
{
public static void Main()
{
List<AppDomain> ads = new List<AppDomain>();
for (int i = 0; i < 10; i++)
{
AppDomain ad = AppDomain.CreateDomain(i.ToString());
ad.DoCallBack(delegate { Type t = typeof(Uri); });
ads.Add(ad);
}
Console.WriteLine("After loading System.dll into 10 AppDomains: {0}", Environment.WorkingSet);

foreach (AppDomain ad in ads)
AppDomain.Unload(ad);
Console.WriteLine("After unloading the AppDomains: {0}", Environment.WorkingSet);
}
}</source>
<pre class=codeResult>After loading System.dll into 10 AppDomains: 8544256
After unloading the AppDomains: 8519680</pre>

==WorkingSet change After loading System.dll into 10 AppDomains==

<source lang="csharp">using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Security;
using System.Security.Permissions;
using System.Security.Policy;
public class MainClass
{
public static void Main()
{
List<AppDomain> ads = new List<AppDomain>();
for (int i = 0; i < 10; i++)
{
AppDomain ad = AppDomain.CreateDomain(i.ToString());
ad.DoCallBack(delegate { Type t = typeof(Uri); });
ads.Add(ad);
}
Console.WriteLine("After loading System.dll into 10 AppDomains: {0}", Environment.WorkingSet);
}
}</source>
<pre class=codeResult>After loading System.dll into 10 AppDomains: 8404992</pre>

==WorkingSet change after loading the DLL==

<source lang="csharp">using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Security;
using System.Security.Permissions;
using System.Security.Policy;
public class MainClass
{
public static void Main()
{
Console.WriteLine("Before: {0}", Environment.WorkingSet);
// Loads System.dll (if it"s not already loaded):
Type uriType = typeof(Uri);
Console.WriteLine("After loading System.dll: {0}", Environment.WorkingSet);
}
}</source>
<pre class=codeResult>Before: 4550656
After loading System.dll: 4964352</pre>

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Csharp/CSharp Tutorial/Development/Environment - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия