delete very large ListView

[Vampie 0]

Hi all,

I'm using a list view and sometimes there can be like 20.000 lines in the listview.

I read files and add them to the listview

Is there a way to delete all the records in 1 go?

I've tried to use _GUICtrlListView_DeleteAllItems, but that deletes record by record, so it takes a long time to delete them all.

Any ideas?

thank you very much.

Edited September 27, 2010 by Vampie

[water 2,387]

When you look at the include file you can see that the function handles the delete in two ways depending if you pass a ControlID or a handle to the function.

_GUICtrlListView_Create returns a handle whereas GUICtrlCreateListView returns a ControlId.

So creating the listview with _GUICtrlListView_Create should make the deletion run faster.

Edited September 27, 2010 by water

[wakillon 403]

Welcome to the forum !

may be delete the ctrl and re-create is more fast ?

GUICtrlDelete ( $_ListView )

Edited September 27, 2010 by wakillon

[Melba23 3,455]

Vampie,

I've tried to use _GUICtrlListView_DeleteAllItems, but that deletes record by record

It most certainly does not - it deletes all records at once whenever I use it (which is quite often!).

But as water pointed out, you need to use the handle, not the ControlID. So if you have created your ListView with GUICtrlCreateListView you need to use:

_GUICtrlListView_DeleteAllItems(GUICtrlGetHandle($hList_View))

wakillon's tip is also a good one - why not try it?

M23

[Vampie 0]

Thank you all.

I've choosen the last solution and it works like a charm.

tnx a lot.