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type
TForm1 = class(TForm)
...
private
ListEdit : TEdit;
procedure ListEditKeyPress(Sender: TObject; var Key: Char) ;
end;
//create the TEdit and make ListBox its parent
procedure TForm1.FormCreate(Sender: TObject) ;
begin
ListEdit := TEdit.Create(self) ;
ListEdit.Visible := false;
ListEdit.Ctl3D := false;
ListEdit.BorderStyle := bsNone;
ListEdit.Parent := ListBox1;
ListEdit.Width := ListBox1.ClientWidth;
ListEdit.OnKeyPress := ListEditKeyPress;
end;
//ListView Item selected - position the Edit
procedure TForm1.ListBox1Click(Sender: TObject) ;
var
ii : integer;
lRect: TRect;
begin
ii := ListBox1.ItemIndex;
if ii = -1 then exit;
lRect := ListBox1.ItemRect(ii) ;
ListEdit.Top := lRect.Top + 1;
ListEdit.Left := lRect.Left + 1;
ListEdit.Height := (lRect.Bottom - lRect.Top) + 1;
ListEdit.Text := ListBox1.Items.Strings[ii];
ListBox1.Selected[ii] := False;
ListEdit.Visible := True;
ListEdit.SelectAll;
ListEdit.SetFocus;
end;
//apply editing when enter key is pressed
procedure TForm1.ListEditKeyPress(Sender: TObject; var Key: Char) ;
var
ii: Integer;
begin
if Key = #13 then
begin
ii := ListBox1.ItemIndex;
ListBox1.Items.Delete(ii) ;
ListBox1.Items.Insert(ii, ListEdit.Text) ;
ListEdit.Visible := False;
Key := #0;
end;
end;
//hide Edit when ListBox looses the focus
procedure TForm1.ListBox1Exit(Sender: TObject) ;
begin
ListEdit.Visible := false;
end;
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