unit Unitlx;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, DB, ADODB, StdCtrls;type
TForm1 = class(TForm)
cbb1: TComboBox;
lst1: TListBox;
procedure cbb1Change(Sender: TObject);
procedure lst1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.dfm}procedure TForm1.cbb1Change(Sender: TObject);
begin
lst1.Items.Add(cbb1.Text);
cbb1.Items.Delete(cbb1.ItemIndex);
end;procedure TForm1.lst1Click(Sender: TObject);
begin
cbb1.Items.Add(lst1.Items.Strings[lst1.i);
lst1.Items.Delete(lst1.ItemIndex);
end;end.
当cbb1从lst1中增加内容时没有itemindex属性,强加上就行,想请教为什么
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, DB, ADODB, StdCtrls;type
TForm1 = class(TForm)
cbb1: TComboBox;
lst1: TListBox;
procedure cbb1Change(Sender: TObject);
procedure lst1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.dfm}procedure TForm1.cbb1Change(Sender: TObject);
begin
lst1.Items.Add(cbb1.Text);
cbb1.Items.Delete(cbb1.ItemIndex);
end;procedure TForm1.lst1Click(Sender: TObject);
begin
cbb1.Items.Add(lst1.Items.Strings[lst1.i);
lst1.Items.Delete(lst1.ItemIndex);
end;end.
当cbb1从lst1中增加内容时没有itemindex属性,强加上就行,想请教为什么
解决方案 »
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