#眉標=Mobile
#副標=Windows Mobile開發系列（1）
#大標= VS 2008與Windows Mobile 6行動開發新技術
#作者=文／沈炳宏
#引言=

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程式1
C# 2.0
public class Person {
private string _firstName;
public string FirstName {
get { return _firstName; }
set { _firstName = value; }
}
private string _lastName;
public string LastName {
get { return _lastName; }
set { _lastName = value; }
}
private int _age;
public int Age {
get { return _age; }
set { _age = value;  }
}
}

C# 3.0
public class Person {
public string FirstName { get; set; }
public string LastName  { get; set; }
public int Age { get; set; }
}

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程式2
C# 2.0
Person person = new Person();
person.FirstName = "Bill";
person.LastName = "Shen";
person.Age = 18;

C# 3.0
Person person = new Person { 
FirstName="Bill", 
LastName="Shen", 
Age=18
};

C# 3.0 Nested Property
Person person = new Person {
      FirstName = "Bill",
      LastName = "Shen"
      Age = 18,
      Address = new Address {
         Street = "One Microsoft Way",
         City = "Redmond",
         State = "WA",
         Zip = 98052
      }
   };

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程式3
使用物件初始化器
List<Person> people = 
new List<Person>();
people.Add( new Person { 
FirstName = "Bill", 
LastName = "Shen", Age = 18 } );
people.Add( new Person { 
FirstName = "YOYO", 
LastName = "Chen", Age = 8 } );
使用物件初始化器與集合初始化器
List<Person> people = new List<Person> {
new Person { 
FirstName = "Bill", 
LastName = "Shen", Age = 18 },
new Person { 
FirstName = "YOYO", 
LastName = "Chen", Age = 8 }};

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程式4
string email = Request.QueryString["email"];
if ( EmailValidator.IsValid(email) ) {   
}

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程式5
string email = Request.QueryString["email"];
if ( email.IsValidEmailAddress() ) {   
}

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程式6
public static class DemoExtensions
{
    public static bool 
IsValidEmailAddress(this string s)
    {
        Regex regex = 
new Regex(@"^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$");
        return regex.IsMatch(s);
    }
}

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