public static void DoProc()
{
using (PeopleContext context = new PeopleContext())
{
context.People4.Add(new Person4()
{
Id = 1, Name = "Steave",
});
context.People4.Add(new Person4()
{
Id = 2, Name = "Bill",
});
context.People4.Add(new Person4()
{
Id = 3, Name = "Mark",
});
context.SaveChanges();
}
using (PeopleContext context = new PeopleContext())
{
Person4 person = context.People4.SingleOrDefault(p => p.Id == 3);
Console.WriteLine(person.Name);
}
}
public static void DoProc()
{
XmlSerializer serializer = new XmlSerializer(typeof(Person4));
string xml;
using (StringWriter stringWriter = new StringWriter())
{
Person4 p = new Person4()
{
Id = 1,
Name = "Taro",
Age = 20,
};
serializer.Serialize(stringWriter, p);
xml = stringWriter.ToString();
}
Console.WriteLine(xml);
using (StringReader stringReader = new StringReader(xml))
{
Person4 p = (Person4)serializer.Deserialize(stringReader);
Console.WriteLine(p.ToString());
}
}
public static void DoProc()
{
//Dictionary<string, IEnumerable<Tuple<Type, int>>> data =
// new Dictionary<string, IEnumerable<Tuple<Type, int>>>();
// 戻り値の方が自明な場合、左辺はvarにすると可読性が向上する
var implicitData = new Dictionary <string, IEnumerable <Tuple <Type, int> > >();
// object initialization syntax
var person = new Person4()
{
Id = 1,
Name = "test",
Age = 10,
};
// the same syntax can be used when creating collections.
var persons = new List <Person4>()
{
new Person4()
{
Id = 2,
Name = "test2",
Age = 20,
},
new Person4()
{
Id = 3,
Name = "test3",
Age = 30,
},
};
// lambda expression (anonymous method)
Func <int, int> myDelegate = delegate(int x)
{
return(x * 2);
};
// lambda expression is syntax sugar, for using Func and Action.
Action <Person4> test = (x) =>
{
Console.WriteLine(x.ToString());
};
test(person);
}
public static void DoProc()
{
_logger.Debug(DateTime.Now);
var person = new Person4
{
Id = 1,
Name = "Taro",
Age = 20
};
IFormatter formatter = new BinaryFormatter();
using (Stream stream = new FileStream("data.bin", FileMode.Create))
{
formatter.Serialize(stream, person);
}
using (Stream stream = new FileStream("data.bin", FileMode.Open))
{
var dPerson = (Person4)formatter.Deserialize(stream);
Console.WriteLine(dPerson.ToString());
}
}