grid question
lazarus / 9-Editor

----------------------------------------------------------------------
eedexter · 2007-08-13 23:20

I have just started to use lazarus and I am a little confused as to
where my code is at... I just ended up with the basic code and it
isn't showing me what changes have been made.  What I am wanting to do
is fit the grid around data that I load into it and be able to define
the columns when I load stuff in and I can't find any of the methods
to code them.  (it is to replace python wxpython code)..  A tutorial
somewhere on how to use lazarus with a sample project would be
helpfull..  apologies in advance if I am asking a dumb question.

https://sourceforge.net/projects/dex-tracker

Code: [Select]
{ TForm1 }

  TForm1 = class(TForm)
    DrawGrid1: TDrawGrid;
  private
    { private declarations }
  public
    { public declarations }
  end;

var
  Form1: TForm1;

implementation

initialization
  {$I unit1.lrs}

end.

----------------------------------------------------------------------
antonio · 2007-08-14 00:00

I am not sure if I understand what you want. There are some sample
projects on http://br.geocities.com/antoniog123456/

----------------------------------------------------------------------
eedexter · 2007-08-14 00:06

I was hopeing to be able to see more of the code like in python so
that I could understand what is happening..  looks like what I did was
barely mentioned...  I.e. where are the column headings that I
entered...  where are the number of columns...  that sort of thing..
 The sample projects may be helpfull I will look into that.

----------------------------------------------------------------------
antonio · 2007-08-14 00:23

There is a lot of others on
http://wiki.lazarus.freepascal.org/Projects_using_Lazarus

----------------------------------------------------------------------
Marc · 2007-08-14 08:48

thats the visual and RTTI part of lazarus FPC. You don't need to put
everything in code.
All visual layout is encoded in a resoucestream (which is encoded in
unit1.lrs)
All classes derived from TComponent know how to read this and while
creating, during the loading phase, all values for the changed
properties are read and set. So unlike other languages, you don't need
to write any code for this yourself.

When adding columns, you probably clicked on the columns property in
the ObjectInspector. All properties you see there are the published
properties os a class. You can access all of them in your code too.
When in the code editor, try typing DrawGrid1. (note the dot) and
press CTRL+Space. Now you see all methods and functions available for
the grid.

----------------------------------------------------------------------
RudieD · 2007-08-14 11:22

Also, don't you maybe need the dbgrid rather ? It will auto create the
required columns for a dataset.

----------------------------------------------------------------------
eedexter · 2007-08-14 14:11

thanks for the help folks.  I liked that grid because the row titles
are blank and I am looking for a spreadsheet that I can sometimes put
words into, But I don't know why or why I wouldn't like the other one
or for that matter what trouble it would cause if I stick with the one
I have, I will look into this a little more that should help a bunch.
 I saw the example with tcl and was wanting to know if I could do the
same with python??  I will have to look closer at all the documention
to see what all is posible.

----------------------------------------------------------------------
eedexter · 2007-08-14 16:08

It seems that I have got the classes coming up.....  I believe I am
fine when it comes to actions clicks exc..  but I don't have a clue
when it comes to getting the data in the form and that probily goes
for the text controls also.