• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 598
  • Last Modified:

Sort memo by length

Hi,

Does anybody have some code that will sort the lines in a memo by length? longest first.

Thanks
0
zattz
Asked:
zattz
  • 2
  • 2
1 Solution
 
robert_marquardtCommented:
Length of what? Line, sentence, word or something else?
0
 
zattzAuthor Commented:
line
0
 
2266180Commented:
try this:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Memo1: TMemo;
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

function mysort(List: TStringList; Index1, Index2: Integer): Integer;
begin
  result:=length(list[index2])-length(list[index1]);
end;

procedure TForm1.FormCreate(Sender: TObject);
var s:TStringList;
begin
  memo1.lines.add('213');
  memo1.lines.add('rewrqwte');
  memo1.lines.add('w');
  memo1.lines.add('ererer');
  s:=TStringList.Create;
  s.AddStrings(memo1.lines);
  s.CustomSort(mysort);
  memo1.lines.clear;
  memo1.lines.AddStrings(s);
  s.free;
end;

end.


0
 
robert_marquardtCommented:
I would add

  memo1.lines.BeginUpdate;
  memo1.lines.clear;
  memo1.lines.AddStrings(s);
  memo1.lines.EndUpdate;

to speed it up and get less screen activity.
0
 
zattzAuthor Commented:
Good idea:)
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

  • 2
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now