delphi ComboBox怎么添加下拉菜单的。。
rt

[解决办法]

Delphi(Pascal) code

unit Unit1;interfaceuses  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,  Dialogs, StdCtrls;type  TForm1 = class(TForm)    ComboBox1: TComboBox;    Button1: TButton;    procedure Button1Click(Sender: TObject);  private    { Private declarations }  public    { Public declarations }  end;var  Form1: TForm1;implementation{$R *.dfm}procedure TForm1.Button1Click(Sender: TObject);begin    combobox1.Items.Add('ABC');    combobox1.Items.Add('cde');end;end.
[解决办法]
直接在items属性里添加
[解决办法]
还有一中:

  combobox1.Items.CommaText :='ABC,abc';
就添加了 ABC 和 abc  下拉框
[解决办法]
 combobox1.Items.CommaText :='AAA,bbb';
添加 AAA 和  bbb  下拉框
[解决办法]
1、直接付值：
combobox1.Items.Add('ABC');
combobox1.Items.Add('cde');
2、如果是要从表中读取来绑定:
ADOQuery1.Close;
ADOQuery1.SQL.Clear;
ADOQuery1.SQL.Add('select id from table order by id');
ADOQuery1.Open;
if ADOQuery1.RecordCount >0 then
begin
 ComboBox1.Items.Clear;
 ADOQuery1.First;
 while not ADOQuery1.Eof do
 begin
   ComboBox1.Items.Add(ADOQuery1.fieldbyname('id').AsString) ;
   ADOQuery1.Next;
 end;
end;