how can i get the record field value

how can i get the record field value? for example,

sorry , my Description is not clear, i have a big record like this

type
myRec=record
a:byte;
c:single;
////  a lot of  fields
end;
var
nowmyrec:myrec;
tmystr:TMemoryStream;
implementation
procedure TForm1.FormCreate(Sender: TObject);
begin
tmystr:tmemerystream.create;
tmystr.LoadFromFile(ExtractFilePath(Application.exename)+'1.data');
tmstr.Position:=0;
tmstr开发者_开发问答.readbuffer(nowmyRec,sizeof(myRec));
end;

if fields of nowmyRec is 1000, how can i get the dll of field value to 1000 form.edits , please donot use record point ,i want use rtti of record,but delphi2007 donot support that. if i donot use delphi2010 ,do you have other ways?

Blockquote

You question is "how do I use RTTI to access record fields in Delphi 2007?" The answer is that you can't, you need Delphi 2010.

You can declare the record like this

type
    TmyRec = record
        a: byte;
        b: array [0 .. 35] of widechar;
        c: single;
    end;

And use it like this

var
    myRec1, MyRec2: TmyRec;
    ms: TMemoryStream;
    x: single;
begin
    ms := TMemoryStream.Create;
    try
        // Create a record
        myRec1.a :=1;
        myRec1.c :=1.50;

        // Save record to TMemoryStream
        ms.WriteBuffer(myRec1, SizeOf(TmyRec));

        // Read one record from TMemoryStream
        ms.Position := 0;
        ms.ReadBuffer(myRec2, SizeOf(TMyRec));

        // Get a value
        x := MyRec2.c;
        ShowMessage(FloatToStr(x));
    finally
        ms.Free;
    end;
end;

you need to first declare the record variable like Rec1: myRec;

var
  Rec1: myRec;
  myValue: Single;
begin
  myValue := Rec1.c
end;

Is this what you want?