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;
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.
就添加了 ABC 和 abc 下拉框
添加 AAA 和 bbb 下拉框
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;