asked on

Delphi ListBox.setfocus problem...

can anyone give me a source of a working listbox.setfocus command in delphi, because i always get array error.
thanks in advance :)

kretzschmar

??

where is the problem?
maybe you should show what you do

procedure TForm1.Button1Click(Sender: TObject);
begin
if listbox1.CanFocus then
listbox1.SetFocus;
end;

meikl ;-)

Eddie Shipman

You are getting an array error? It is NOT coming from the listbox because Listbox deosn't use arrays.
If you post the code you are using and the COMPLETE error message, we can help you.

Robn

I have never seen this problem before but I have had issues where SetFocus causes errors (especially on 3rd party components in ActiveX forms) and I solved this by using SetFocus in the Windows unit.

Example
SetFocus(ListBox1.Handle);

However, like EddieShipman said, this seems to be something other than a SetFocus error. The ListBox will use arrays in the OS to manage the items but I have never seen this error in Delphi before.

bbh2k3

ASKER

i wanted to do it like, when i add a line in the listbox, to automatically scoll down the bar to see the line added.
sorry about my poor english .. ;)

ASKER CERTIFIED SOLUTION

Robn

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Eddie Shipman

[quote]when i add a line in the listbox, to automatically scoll down the bar to see the line added[/quote]

What would that have to do with setting focus to the listbox, anyway?

Robn gave you the correct answer to do that but it can be shortened to:

ListBox1.ItemIndex := ListBox1.Items.Add(...);

bbh2k3

ASKER

thanks for the help guys, i really apriciate, keep it going!