Fórum Componente #368131

unit EditNumber;

interface

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

type
  TEditNumber = class(TEdit)
  private
    { Private declarations }
  protected
    { Protected declarations }
  public
    { Public declarations }
    procedure KeyPress(var Key: Char); override;
  published
    { Published declarations }
  end;

procedure Register;

implementation

procedure Register;
begin
  RegisterComponents(´Samples´, [TEditNumber]);
end;

{ TEditNumber }

procedure TEditNumber.KeyPress(var Key: Char);
begin
  inherited;
   if not (key in [´0´..´9´]) then
      Key := 0;
end;

end.