Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Check of entered text in TStringGrid

Posted on 2000-02-24
1
Medium Priority
?
317 Views
Last Modified: 2010-04-04
Hi, following:

have a TStringGrid with
 fixedcols:=0;
 fixedrows:=0;
 options:=[goFixedVertLine,
           goFixedHorzLine,
           goVertLine,
           goHorzLine,
           goEditing,
           goAlwaysShowEditor];

If the user set the focus from the actual cell to
somewhere else (to a different cell or eaven to a different control)
I need to check the users input at the cell he leaves this moment.
I try "OnSetEditText", but this event occurs immediately if the user
enters the first Char to the cell. (Ex.: the cells contain date-information,
and I want to check whether the entered date is a correct date...)

It exists a "private" procedure

procedure FocusCell(ACol, ARow: Longint; MoveAnchor: Boolean);

in TCustomGrid, if this whould be only "protected" and "virtual", it would
solve the problm, but unfortunately it isnt.

OK I could start to change VCL-Source for my needs, but first I would ask
if there is a solution without such an "operation".

Regards
nmm
0
Comment
Question by:nmm
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 8

Accepted Solution

by:
ZifNab earned 300 total points
ID: 2556144
Hi nmm,

you could do it like this :

* use the OnExit Event (leaving stringgrid)
* OnSelectCell Event (moving to another Cell)

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ExtCtrls, TeeProcs, TeEngine, Chart, Buttons, Grids;

type
  TForm1 = class(TForm)
    StringGrid1: TStringGrid;
    procedure StringGrid1Exit(Sender: TObject);
    procedure StringGrid1SelectCell(Sender: TObject; ACol, ARow: Integer;
      var CanSelect: Boolean);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation
{$R *.DFM}

procedure TForm1.StringGrid1Exit(Sender: TObject);
// Event when focus goes to another component
begin
  with (Sender as TStringGrid) do
  begin
    if Cells[Col,Row] = 'Correct' then ;
  end;
end;

procedure TForm1.StringGrid1SelectCell(Sender: TObject; ACol,
  ARow: Integer; var CanSelect: Boolean);
// Event when changing cell
begin
  with (Sender as TStringGrid) do
  begin
    // Col and Row contain the Old position
    // ACol and ARow are the new positions
    if Cells[Col,Row] = 'Correct' then ;
  end;
end;

end.

Regards, Zif
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

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

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
We’ve all felt that sense of false security before—locking down external access to a database or component and feeling like we’ve done all we need to do to secure company data. But that feeling is fleeting. Attacks these days can happen in many w…
Loops Section Overview
Suggested Courses

610 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question