Question

Multiply lines of richedit

Asked by: delphiuser2009

I have a richedit component with a number of lines in it, how can multiply these lines by enter a number in a editbox.

The lines should be seperated by white space.

For example.

1 Amsterdam.
2 New York.
3 London.

Number entered in editbox = 2. (lines in richedit becomes:)

1 Amsterdam.
2 New York.
3 London.

1 Amsterdam.
2 New York.
3 London.

Btw, is it possible to put numbers before the lines (just like above).

Thanks

This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.

Subscribe now for full access to Experts Exchange and get

Instant Access to this Solution

  • Plus...
  • 30 Day FREE access, no risk, no obligation
  • Collaborate with the world's top tech experts
  • Unlimited access to our exclusive solution database
  • Never be left without tech help again

Subscribe Now

Asked On
2009-09-01 at 22:28:54ID24700298
Tags

Richedit

,

delphi 2009

,

editbox

Topics

Delphi Components

,

Delphi IDE

,

Delphi Programming

Participating Experts
2
Points
35
Comments
15

Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.

  • "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
  • "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
  • "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.

See what Experts Exchange can do for you.

Got a question?

We've got the answer.

Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.

Screenshot of Experts Exchange Knowledgebase

Need individual assistance?

Our experts are ready to help.

If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.

Screenshot of Experts Exchange Knowledgebase

Want to learn from the best?

Read articles from industry experts.

Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.

Screenshot of an Article

Working on a long term project?

Store your work and research.

Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.

Screenshot of Experts Exchange Knowledgebase

Access the answers to your technology questions today.

Subscribe Now

30-day free trial. Register in 60 seconds.

What Makes Experts Exchange Unique?

Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Trusted by the world's most respected brands.

image of each brand's logo

Faithfully serving IT professionals since 1996.

Experts Exchange Logo

Try it out and discover for yourself.

Subscribe Now

30-day free trial. Register in 60 seconds.

Related Solutions

  1. Richedit
    How do I select all in a richedit?
  2. RichEdit........
    How can I in a Richedit make colored text, so it looks good. Can I somehow turn off the redrawing in a richedit..??? Here is my little test, but it's very ugly... var Editor: RichEdit; procedure TForm1.editorKeyPress(Sender: TObject; var Key: Char); var i: integer; p,e: ...
  3. richedit
    I have a textfile that I am reading onto richedit. What I want is to read a certain number of lines(say ten) from the file onto the richedit and be able to press any key to see the next set of lines on the same richedit,the same way the PageDown and PageUp keys work

Free Tech Articles

  1. WARNING: 5 Reasons why you should NEVER fix a computer for free.
    It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
  2. SCCM OSD Basic troubleshooting
    SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
  3. Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
    This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
  4. Create a Win7 Gadget
    This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
  5. Outlook continually prompting for username and password
    There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
  6. Backup Exchange 2010 Information Store using Windows Backup
    There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...

Cloud Class Webinars

  1. Avoiding Bugs in Microsoft Access
    Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
  2. Top 10 Best New Features in Visio 2010
    Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
  3. IT Consultant Business Secrets Revealed
    Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
  4. Disaster Recovery and Business Continuity
    Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
  5. Organize Your Visio Diagrams with Containers and Lists
    Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
  6. How to Us Objects, Properties, Events and Methods in Microsoft Access
    Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...

Join the Community

Give a Little. Get a Lot.

Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.

Join the Community

Answers

 

by: ThievingSixPosted on 2009-09-01 at 23:09:57ID: 25238305

procedure TForm14.Button1Click(Sender: TObject);
var
  NumberOfRepeats : Integer;
  Buffer : String;
begin
  NumberOfRepeats := StrToIntDef(Edit1.Text,0);
  If NumberOfRepeats = 0 Then Exit;
  If RichEdit1.Lines.Count = 0 Then Exit;
  Buffer := RichEdit1.Text + #13#10;
  Buffer := DupeString(Buffer,NumberOfRepeats);
  RichEdit1.Text := Buffer;
end;

                                              
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:

Select allOpen in new window

 

by: Geert_GruwezPosted on 2009-09-01 at 23:13:31ID: 25238323

how are filling up the richedit ?

 

by: ThievingSixPosted on 2009-09-01 at 23:14:32ID: 25238326

"RichEdit1.Text := Buffer;"
?

 

by: delphiuser2009Posted on 2009-09-02 at 00:43:56ID: 25238730

The richedit box is on a other form, the main form holds a listbox, and from there is is copieed.
(I use this method because of quickreport, as far as I know I can't directly printpreview from the listbox to quickreport, for richedit, edit, memo there are parts for, but not for the listbox to show).

I need to use a code when I click on a button to show the items from listbox to richedit, when I want to have numbers in front of every line (like above).

 

by: Geert_GruwezPosted on 2009-09-02 at 01:03:47ID: 25238829

this is a sample of a main form with a listbox and 2 buttons to add/replace the text in the RichEdit

unit uMaster;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Buttons;
 
type
  TfrmMaster = class(TForm)
    lbItems: TListBox;
    btnShowReport: TBitBtn;
    btnAddToReport: TBitBtn;
    procedure btnShowReportClick(Sender: TObject);
    procedure btnAddToReportClick(Sender: TObject);
  private
    procedure FormatLbItems(List: TStrings);
    function GetlbItemsText: string;
  public
  end;
 
var
  frmMaster: TfrmMaster;
 
implementation
 
uses uTextReport;
 
{$R *.dfm}
 
procedure TfrmMaster.FormatLbItems(List: TStrings);
var I: Integer;
begin
  List.Assign(lbItems.Items);
  for I := 0 to List.Count - 1 do
    List[I] := Format('%d %s.', [I+1, List[I]]);
end;
 
function TfrmMaster.GetlbItemsText: string;
var List: TStrings;
  I: Integer;
begin
  List := TStringList.Create;
  try
    FormatLbItems(List);
    Result := List.Text;
  finally
    List.Free;
  end;
end;
 
procedure TfrmMaster.btnAddToReportClick(Sender: TObject);
begin
  ShowTextReport(GetLbItemsText, False);
end;
 
procedure TfrmMaster.btnShowReportClick(Sender: TObject);
begin
  ShowTextReport(GetLbItemsText, True);
end;
 
end.
 
--------------
unit uTextReport;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ComCtrls;
 
type
  TfrmReport = class(TForm)
    reReport: TRichEdit;
  private
    function GetText: string;
    procedure SetText(const Value: string);
  public
    procedure AddText(aText: string);
    property Text: string read GetText write SetText;
  end;
 
var
  frmReport: TfrmReport;
 
procedure ShowTextReport(aText: string; Replace: boolean = False);
procedure CloseReport;
 
implementation
 
{$R *.dfm}
 
function Report: TfrmReport;
begin
  if not Assigned(frmReport) then
    frmReport := TfrmReport.Create(Application);
  frmReport.Show;
  frmReport.Update;
  frmReport.BringToFront;
  Result := frmReport;
end;
 
procedure ShowTextReport(aText: string; Replace: boolean = False);
begin
  if not Replace then
    Report.AddText(aText)
  else
    Report.Text := aText;
end;
 
procedure CloseReport;
begin
  FreeAndNil(frmReport);
end;
 
{ TfrmReport }
 
procedure TfrmReport.AddText(aText: string);
var List: TStrings;
begin
  List := TStringList.Create;
  try
    List.Text := aText;
    reReport.Lines.AddStrings(List);
  finally
    List.Free;
  end;
end;
 
function TfrmReport.GetText: string;
begin
  Result := reReport.Text;
end;
 
procedure TfrmReport.SetText(const Value: string);
begin
  reReport.Text := Value;
end;
 
end.
                                              
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
32:
33:
34:
35:
36:
37:
38:
39:
40:
41:
42:
43:
44:
45:
46:
47:
48:
49:
50:
51:
52:
53:
54:
55:
56:
57:
58:
59:
60:
61:
62:
63:
64:
65:
66:
67:
68:
69:
70:
71:
72:
73:
74:
75:
76:
77:
78:
79:
80:
81:
82:
83:
84:
85:
86:
87:
88:
89:
90:
91:
92:
93:
94:
95:
96:
97:
98:
99:
100:
101:
102:
103:
104:
105:
106:
107:
108:
109:
110:
111:
112:
113:
114:
115:
116:
117:
118:
119:
120:
121:
122:
123:
124:
125:
126:
127:
128:
129:
130:
131:
132:
133:
134:
135:
136:
137:
138:
139:
140:
141:

Select allOpen in new window

 

by: delphiuser2009Posted on 2009-09-02 at 03:42:27ID: 25239593

@ Geert_Gruwez: Thanks I will look into it and let you know.

 

by: delphiuser2009Posted on 2009-09-02 at 09:39:33ID: 25242820

@ Geert_Gruwez: Thanks for the code it works very well, I'll try and addept it to my own settings, but I would like to ask, how I can add a blank lines (maybe 2 blank lines) between every copy (like in a notepad, hope you got what I mean).

Thanks again for your assistance.

 

by: delphiuser2009Posted on 2009-09-02 at 09:41:22ID: 25242842

btw: how can I also get the same button which is on the main form, on the form with the richedit and does the same?

 

by: Geert_GruwezPosted on 2009-09-02 at 11:08:32ID: 25243822

there is 2 buttons on the main form which one would it be ?
the replace or the add ?

to add a blank line (or 2) before the list:

function TfrmMaster.GetlbItemsText: string;
const 
  BlankLines = 2;
var 
  List: TStrings;
  I: Integer;
begin
  List := TStringList.Create;
  try
    FormatLbItems(List);
    for I := 1 to BlankLines do
      List.Insert(0, '');
    Result := List.Text;
  finally
    List.Free;
  end;
end;
                                              
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:

Select allOpen in new window

 

by: delphiuser2009Posted on 2009-09-02 at 12:45:12ID: 25244838

Sorry, the add button, that did what I want.

 

by: Geert_GruwezPosted on 2009-09-02 at 13:26:32ID: 25245287

i guess you would have to buffer the last entry

type
  TfrmReport = class(TForm)
    reReport: TRichEdit;
    btnAddLastAgain: TBitBtn;
    procedure btnAddLastAgainClick(Sender: TObject);
  private
    fBuffer: TStrings;
    function GetText: string;
    procedure SetText(const Value: string);
  public
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    procedure AddText(aText: string);
    property Text: string read GetText write SetText;
  end;
 
var
  frmReport: TfrmReport;
 
procedure ShowTextReport(aText: string; Replace: boolean = False);
procedure CloseReport;
 
implementation
 
{$R *.dfm}
 
function Report: TfrmReport;
begin
  if not Assigned(frmReport) then
    frmReport := TfrmReport.Create(Application);
  frmReport.Show;
  frmReport.Update;
  frmReport.BringToFront;
  Result := frmReport;
end;
 
procedure ShowTextReport(aText: string; Replace: boolean = False);
begin
  if not Replace then
    Report.AddText(aText)
  else
    Report.Text := aText;
end;
 
procedure CloseReport;
begin
  FreeAndNil(frmReport);
end;
 
{ TfrmReport }
 
procedure TfrmReport.AddText(aText: string);
begin
  fBuffer.Text := aText;
  reReport.Lines.AddStrings(fBuffer);
end;
 
function TfrmReport.GetText: string;
begin
  Result := reReport.Text;
end;
 
procedure TfrmReport.SetText(const Value: string);
begin
  reReport.Text := Value;
end;
 
constructor TfrmReport.Create(AOwner: TComponent); 
begin
  inherited Create(AOwner);
  fBuffer := TStringList.Create;
end;
 
destructor TfrmReport.Destroy; 
begin
  FreeAndNil(fBuffer);
  inherited Destroy;
end;
 
procedure TfrmReport.btnAddLastAgainClick(Sender: TObject);
begin
  AddText(fBuffer.Text);
end;
 
end.

                                              
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
32:
33:
34:
35:
36:
37:
38:
39:
40:
41:
42:
43:
44:
45:
46:
47:
48:
49:
50:
51:
52:
53:
54:
55:
56:
57:
58:
59:
60:
61:
62:
63:
64:
65:
66:
67:
68:
69:
70:
71:
72:
73:
74:
75:
76:
77:
78:
79:
80:
81:
82:
83:
84:
85:

Select allOpen in new window

 

by: delphiuser2009Posted on 2009-09-02 at 13:46:36ID: 25245542

Thanks Geert_Gruwez.

That I could count on your help.

You've earned the points.

 

by: delphiuser2009Posted on 2009-09-02 at 13:47:09ID: 31623700

Many thanks again. It works fantastic.

 

by: delphiuser2009Posted on 2009-09-03 at 09:33:27ID: 25252349

Sorry I back again, I just had an error:

First chance exception at $7C7E2AFB. Exception class EAccessViolation with message 'Access violation at address 00000000. Read of address 00000000'.

This occured when I had close the form where the richedit is on, and click the add button (on the main form)  again. Any idea what causes this error?

 

by: delphiuser2009Posted on 2009-09-03 at 14:17:14ID: 25255042

Sorry problem solved, I looked over the code again, and found out I missed a small part of your code, now that problem is fixed.

20120131-EE-VQP-002

3 Ways to Join

30-Day Free Trial

The Experts

98% positive feedback on 31,087 answers since March 2000. angeliii is a Microsoft Most Valuable Professional for his work with MS SQL Server & Develoment.

He has also proven his knowledge of Visual Basic Programming, PHP Scripting and Oracle Databases.

The Experts

97% positive feedback on 10,752 answers since July 2000. lrmoore has more than 18 years experience in the networking industry.

The six-time Mircosoft MVPs specialties include firewalls, virtual private networking, and network management.

Testimonials

"...and excellent source for support... Kind of like having your very own IT dept." Electriciansnet

Testimonials

"I was apprehensive at signing up at first. However... it has already made my life as an IT administrator much easier." JaCrews

Testimonials

"WOW! You guys have great, active, and knowledgeable people on here." moore50

Business Clients

Business Clients

In the Press

"If you’ve got a question... Experts Exchange can supply an answer.”

In the Press

"...an invaluable aid for both IT professionals and those who require tech support."

In the Press

"where IT professionals provide quick answers on just about any topic"

Business Account Plans

Loading Advertisement...