You're welcome. Try looking into the msdn groups
for .net and stackoverflow - both have some very helpful people on
basic-
advanced .net stuff. Here is the idea creating a
seperate class for your Birthday type and using it as a field in your PersonData
type.
{code}
using System;
namespace ConsoleApplication1
{
class
Program
{
static void Main(string[]
args)
{
try
{
PersonData pd = new
PersonData(new
DateTime(2009,4,12));
//If you make BirthDay.Valid
public you could call it like
such.
//I'd leave it as a private
method of the class like my first example.
//if
(pd.Bd.Valid(new DateTime(2009, 4,
12)))
//{
//
//...
//}
}
catch
(ArgumentException ae)
{
// do bad data
stuff
}
}
public class
PersonData
{
//readonly
makes bd only able to be set during instantiation of the type.
//remove and
add a setter to the BirthDay property to be able to set this
//property whenever
you like.
private readonly
BirthDay bd;
public
PersonData(DateTime dt)
{
bd = new
BirthDay(dt);
}
public BirthDay
Bd
{
get { return bd;
}
}
}
public class BirthDay
{
private DateTime dt;
public BirthDay(DateTime
dt)
{
Dt =
dt;
}
//throw an error if bad data is passed
in.
public DateTime
Dt
{
get { return dt;
}
set
{
if
(Valid(value))
dt = value;
else
throw
(new ArgumentException("Bad
birthday"));
}
}
private bool Valid(DateTime
d)
{
//do your testing return true or
false
return
false;
}
}
}
}
{code}
