using System;
using System.Diagnostics;
   
public class TestClass
{
    public void Method1()
    {
        Console.WriteLine("Hello from Method1!");
    }
   
    [Conditional("DEBUG")]
    public void Method2()
    {
        Console.WriteLine("Hello from Method2!");
    }
   
    public void Method3()
    {
        Console.WriteLine("Hello from Method3!");
    }
   
}
   
class MainClass
{
    public static void Main()
    {
        TestClass MyTestClass = new TestClass();
   
        MyTestClass.Method1();
        MyTestClass.Method2();
        MyTestClass.Method3();
    }
}

    

   


// compile with: csc /r:system.dll file_1.cs

using System;
using System.Diagnostics;

class MyClass
{
    public MyClass(int i)
    {
        this.i = i;
    }
    
    [Conditional("DEBUG")]
    public void VerifyState()
    {
        Debug.Assert(i == 0, "Bad State");
    }
    
    int i = 0;
}

public class DefensiveProgrammingAsserts
{
    public static void Main()
    {
        Debug.Listeners.Clear();
        Debug.Listeners.Add(new TextWriterTraceListener(Console.Out));
        MyClass c = new MyClass(1);
        
        c.VerifyState();
    }
}
           
          

   

using System;
using System.Collections;
using System.Diagnostics;

class Class1 {
   static void Main(string[] args) {
     Debug.Fail("Fail Message", "An unexpected exception has been thrown.

");
   }
}


           
          

   

/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy

Publisher: Sybex;
ISBN: 0782129110
*/


/*
  Example19_4.cs illustrates refusing permissions
*/

using System;
using System.IO;
using System.Security.Permissions;

[assembly:FileIOPermissionAttribute(SecurityAction.RequestRefuse,
Unrestricted=true)]

public class Example19_4 
{

    public static void Main() 
    {

        // Create a new file to work with
        FileStream fsOut = File.Create(@"c:	emp	est.txt");
        // Create a StreamWriter to handle writing
        StreamWriter sw = new StreamWriter(fsOut);
        // And write some data
        sw.WriteLine("'Twas brillig, and the slithy toves");
        sw.WriteLine("Did gyre and gimble in the wabe.");
        sw.Flush();
        sw.Close();
    }
}
           
          

   

/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy

Publisher: Sybex;
ISBN: 0782129110
*/
/*
  Example19_3.cs illustrates requesting a permission set
*/

using System;
using System.IO;
using System.Security.Permissions;

[assembly:PermissionSetAttribute(SecurityAction.RequestMinimum,
 Name="FullTrust")]

public class Example19_3 
{

    public static void Main() 
    {

        // Create a new file to work with
        FileStream fsOut = File.Create(@"c:	emp	est.txt");
        // Create a StreamWriter to handle writing
        StreamWriter sw = new StreamWriter(fsOut);
        // And write some data
        sw.WriteLine("'Twas brillig, and the slithy toves");
        sw.WriteLine("Did gyre and gimble in the wabe.");
        sw.Flush();
        sw.Close();

    }

}
           
          

   

/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy

Publisher: Sybex;
ISBN: 0782129110
*/

/*
  Example19_2.cs illustrates requesting optional permissions
*/

using System;
using System.IO;
using System.Security.Permissions;

[assembly:FileIOPermissionAttribute(SecurityAction.RequestOptional,
All=@"c:	emp")]

public class Example19_2 
{

    public static void Main() 
    {

        // Create a new file to work with
        FileStream fsOut = File.Create(@"c:	emp	est.txt");
        // Create a StreamWriter to handle writing
        StreamWriter sw = new StreamWriter(fsOut);
        // And write some data
        sw.WriteLine("'Twas brillig, and the slithy toves");
        sw.WriteLine("Did gyre and gimble in the wabe.");
        sw.Flush();
        sw.Close();
    }
}
          
          

   

/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy

Publisher: Sybex;
ISBN: 0782129110
*/

/*
  Example19_1.cs illustrates requesting minimum permissions
*/

using System;
using System.IO;
using System.Security.Permissions;

[assembly:FileIOPermissionAttribute(SecurityAction.RequestMinimum,
 All=@"c:	emp")]

public class Example19_1 
{

    public static void Main() 
    {

        // Create a new file to work with
        FileStream fsOut = File.Create(@"c:	emp	est.txt");
        // Create a StreamWriter to handle writing
        StreamWriter sw = new StreamWriter(fsOut);
        // And write some data
        sw.WriteLine("'Twas brillig, and the slithy toves");
        sw.WriteLine("Did gyre and gimble in the wabe.");
        sw.Flush();
        sw.Close();

    }

}