?
Solved

Detect resize on stringgrid column

Posted on 2000-05-11
2
Medium Priority
?
1,513 Views
Last Modified: 2008-03-03
In Delphi 5, is there a way to detect when a TStringGrid column is being resized?
0
Comment
Question by:jpoz
[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
2 Comments
 
LVL 2

Accepted Solution

by:
rene100 earned 30 total points
ID: 2802023
ok, here it comes:

unit StringGridEx;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  Grids;

type
  TStringGridEx = class(TStringGrid)
  private
    FColWidthsChanged: TNotifyEvent;
    procedure ColWidthsChanged; override;
    { Private declarations }
  protected
    { Protected declarations }
  public
    { Public declarations }
  published
    property OnColWidthsChanged: TNotifyEvent read FColWidthsChanged write FColWidthsChanged;
    { Published declarations }
  end;

procedure Register;

implementation

procedure Register;
begin
  RegisterComponents('Eigene', [TStringGridEx]);
end;

procedure tStringgridEx.ColWidthsChanged;
begin
inherited;
if Assigned(OnColWidthsChanged) then
   OnColWidthsChanged(Self)
end;
end.

now every time the width of a column has has been changed, OnColWidthsChanged is called.

regards
rene



0
 

Author Comment

by:jpoz
ID: 2802176
Very quick reply, I actually came up with another solution.  However, 'A' for effort, you can have the points.

My answer - in OnMouseUp, I determined where the mouse was based on the CellRect, and determined if it was within the area where the resize occurs.

procedure StringGrid1.OnMouseUp(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState;
  X, Y: Integer)
var
  CellRect : TRect;
begin
  CellRect :=
    StringGrid1.CellRect(CellCoord.x,
                         CellCoord.y);

  if (x >= (CellRect.Right-3))
     or (x <= (CellRect.Left+3)) then
   { resize detected }
end;
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying 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

Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
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…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…
Suggested Courses
Course of the Month8 days, 5 hours left to enroll

765 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