Code:

{

You sometimes wish to store multiple information in a given class like

in the example: alltogether when it belongs together.

Thus accessing this information from out of the class can be achieved

using property declaration. Its a good way to "clean your code" and

make it as "logic" as possible.

You also may have to store or load information from your class using

file or stream technology. This can be done at once for the recorded

information from within the given class.

}

type

TPersonRecord = Record

FirstName: String;

LastName: String;

BirthDate: TDate;

End;

TForm4 = class(TForm)

Button1: TButton;

procedure Button1Click(Sender: TObject);

private

fActualUser: TPersonRecord;

...

procedure SaveActualUser(S: TFileStream); // it's an example

procedure LoadActualUser(S: TFileStream);

...

public

property FirstName: stringread fActualUser.FirstName

write fActualUser.FirstName;

property LastName : stringread fActualUser.LastName

write fActualUser.LastName;

property BirthDate: TDate read fActualUser.BirthDate

write fActualUser.BirthDate;

end;

procedure TForm4.SaveActualUser(S: TFileStream);

begin

// All that stuff at once in your Stream

S.Write(fActualUser, SizeOf(fActualUser))

end;

procedure TForm4.LoadActualUser(S: TFileStream);

begin

// All that stuff at once back in your class

S.Read(fActualUser, SizeOf(fActualUser));

end;