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9.0

how to stop prompt message when i insert data to edit2

Asked by firekiller15 in Delphi Programming, Delphi IDE

Tags: delphi

delphi

i have two textboxes and one button
both boxes i set a maxlength

problem: when i insert to maximum lenght and move to edit2 box everytime i insert a value it will prompt me a message.

question: how to stop it keep prompting me message?


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**unit1**
unit Unit1;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;
 
type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Button1: TButton;
    Edit2: TEdit;
    procedure Edit1KeyPress(Sender: TObject; var Key: Char);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
 
var
  Form1: TForm1;
 
implementation
 
{$R *.dfm}
 
procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char);
begin
    if Key = #8 then //<< BackSpace
          exit;
 
    if (key = #32) and (not(key in ['0'..'9'])) then
    showmessage('type in integer value')
    else if (length(edit1.text) = edit1.maxlength) then
    showmessage('exceed maximum length');
 
end;
 
end.
 
**dfm**
object Form1: TForm1
  Left = 0
  Top = 0
  Width = 347
  Height = 240
  Caption = 'Form1'
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'Tahoma'
  Font.Style = []
  OldCreateOrder = False
  PixelsPerInch = 96
  TextHeight = 13
  object Edit1: TEdit
    Left = 104
    Top = 40
    Width = 121
    Height = 21
    MaxLength = 3
    TabOrder = 0
    Text = 'Edit1'
    OnKeyPress = Edit1KeyPress
  end
  object Button1: TButton
    Left = 136
    Top = 96
    Width = 75
    Height = 25
    Caption = 'Button1'
    TabOrder = 1
  end
  object Edit2: TEdit
    Left = 104
    Top = 64
    Width = 121
    Height = 21
    MaxLength = 4
    TabOrder = 2
    Text = 'Edit2'
    OnKeyPress = Edit1KeyPress
  end
end
[+][-]08/19/08 07:21 PM, ID: 22265628Accepted Solution

Your question has an Asker Certified™ answer! firekiller15 verified that this solution worked for them--which means it will likely work for you, too. Click to view the solution free for 30-days now.

About this solution

Zones: Delphi Programming, Delphi IDE
Tags: delphi
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Solution Provided By: SteveBay
Participating Experts: 1
Solution Grade: A
 
[+][-]08/19/08 07:22 PM, ID: 22265630Expert Comment

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[+][-]08/19/08 07:29 PM, ID: 22265663Author Comment

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[+][-]08/19/08 07:39 PM, ID: 22265701Expert Comment

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