public static string ObjectInitialiserClassToString
(this ObjectInitialiserClass obj)
{
return
(obj.MyString + " "
+ obj.MyInt.ToString() + " "
+ obj.MyDateTime.ToLongDateString());
}
private static void DemoExtensionMethods()
{
ObjectInitialiserClass c =
new ObjectInitialiserClass()
{
MyDateTime = DateTime.Now,
MyInt = 6,
MyString = "hello"
};
//extension method call
string returnMessage = c.ObjectInitialiserClassToString();
}
private static void DemoObjectInitializer()
{
//you do this in C# prior to 3.0
ObjectInitialiserClass c = new ObjectInitialiserClass();
c.MyDateTime = DateTime.Now;
c.MyInt = 5;
c.MyString = "hello di";
//in C# 3.0, you can do this
ObjectInitialiserClass c2 =
new ObjectInitialiserClass()
{
MyDateTime = DateTime.Now,
MyInt = 6,
MyString = "hello"
};
}
private static void DemoCollectionInitializer()
{
//you do this in C# prior to 3.0
ObjectInitialiserClass c = new ObjectInitialiserClass();
c.MyDateTime = DateTime.Now;
c.MyInt = 5;
c.MyString = "hello di";
ObjectInitialiserClass c2 = new ObjectInitialiserClass();
c2.MyDateTime = DateTime.Now;
c2.MyInt = 6;
c2.MyString = "hello di2";
ObjectInitialiserClass c3 = new ObjectInitialiserClass();
c3.MyDateTime = DateTime.Now;
c3.MyInt = 7;
c3.MyString = "hello di3";
List <ObjectInitialiserClass> l = new List <ObjectInitialiserClass>();
l.Add(c);
l.Add(c2);
l.Add(c3);
//in C# 3.0, you can do this
List <ObjectInitialiserClass> l2 =
new List <ObjectInitialiserClass>()
{
c, c2, c3
};
}