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...create a Component at Runtime?
Autor: Simon Grossenbacher
Homepage: http://www.swissdelphicenter.ch
[ Print tip ]  

Tip Rating (4):  
     


{
  Dieser Code erzeugt zur Laufzeit einen Button namens "MyButton".
  Beim Klicken auf diesen Button wird die Procedure 'ButtonClickHandler' ausgeführt.

  This code create a button called "MyButton" at runtime.
  Its onClick event is the procedure 'ButtonClickHandler'.
}

type
  
TForm1 = class(TForm)
    {...}
    
private
      
MyButton: TButton;
      // OnClick handler
      
procedure ButtonClickHandler(Sender: TObject);
  end;

var
  
Form1: TForm1;

implementation

{$R *.DFM}

// OnClick handler
procedure TForm1.ButtonClickHandler(Sender: TObject);
begin
  
ShowMessage(TButton(Sender).Name);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  
MyButton := TButton.Create(Self);
  MyButton.Parent := Self;   // Set its parent (Form1)
  
MyButton.Name := 'Button1';
  MyButton.Caption := 'My Button';
  MyButton.SetBounds(20, 20, 80, 40);
  MyButton.OnClick := ButtonClickHandler; // assign onclick handler
end;

end.


 

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