How do I enumerate all properties in an object and obtain their values?

Question

I want to enumerate all properties: private, protected, public etc. I wish to use the built in facilities and not use any third party code.

Answer 1

Use Extended RTTI like this (when I tested the code in XE I got exception on ComObject property, so I inserted try - except block):

uses RTTI;
procedure TForm1.Button1Click(Sender: TObject);
var
  C: TRttiContext;
  T: TRttiType;
  F: TRttiField;
  P: TRttiProperty;

  S: string;

begin
  T:= C.GetType(TButton);
  Memo1.Lines.Add('---- Fields -----');
  for F in T.GetFields do begin
    S:= F.ToString + ' : ' + F.GetValue(Button1).ToString;
    Memo1.Lines.Add(S);
  end;

  Memo1.Lines.Add('---- Properties -----');
  for P in T.GetProperties do begin
    try
      S:= P.ToString;
      S:= S + ' : ' + P.GetValue(Button1).ToString;
      Memo1.Lines.Add(S);
    except
      ShowMessage(S);
    end;
  end;
end;