给定 ComboBox 的默认值 - 回复 "彩虹芭比" 的问题

问题来源: http://www.cnblogs.com/del/archive/2008/12/09/1286648.html#1395694

---

unit Unit1;



interface



uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls;



type

  TForm1 = class(TForm)

    ComboBox1: TComboBox;

    Button1: TButton;

    Button2: TButton;

    procedure FormCreate(Sender: TObject);

    procedure Button1Click(Sender: TObject);

    procedure Button2Click(Sender: TObject);

  end;



var

  Form1: TForm1;



implementation



{$R *.dfm}



procedure TForm1.FormCreate(Sender: TObject);

begin

  ComboBox1.Items.CommaText := 'aaa,bbb,ccc,ddd';

end;



procedure TForm1.Button1Click(Sender: TObject);

begin

  ComboBox1.ItemIndex := 1;

end;



procedure TForm1.Button2Click(Sender: TObject);

begin

  ComboBox1.ItemIndex := ComboBox1.Items.IndexOf('ccc');

end;



end.