1. Deleting List Items
- Posted by rswiston at hotmail.com
Aug 01, 2002
Sorry if this message reaches everyone twice... problems with Topica (yeah,
like there's a surprise!) have prevented my first one from being sent (or at
least so I think?!)
I am looking for help with list views, particularly with deleting items. My
list are small (1-10 items)
Here is my original code:
for x = 1 to getCount(LV) do
VOID = deleteItem(LV, x)
end for
This works most of the time, so I have implemented an addition...
while getCount(LV) > 0 do
for x = 1 to getCount(LV) do
VOID = deleteItem(LV, x)
end for
end while
This seems to be better, but sometimes send the program into a seemingly
infinite loop that it can not break free from. It appears that win32lib
does not always delete an item from a list view even though the program is
coded to do exactly that.
Is this a bug? Can someone explain what I might be missing here? This also
happens in Lists, and Combo Boxes...?
-Robert
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2. Deleting List Items
- Posted by rswiston at hotmail.com
Aug 01, 2002
Can someone tell me why is that this does NOT delete all items in a list
view?
for x = 1 to getCount(LV) do
VOID = deleteItem(LV, x)
end for
This sometimes leaves a line or two in the list view... so I've added this
while getCount(LV) > 0 do
for x = 1 to getCount(LV) do
VOID = deleteItem(LV, x)
end for
end while
While this helps 90% of the time, there are occasions that the computer
"sits and spins" seemingly involved in an infinite loop that it cannot seem
to break out of.
Of course I have tried VOID = deleteItem(LV, -1) with no greater success.
Can anyone tell me what I am missing? Is this a bug?
-Robert
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3. Re: Deleting List Items
----- Original Message -----
From: "Derek Parnell" <Derek.Parnell at SYD.RABOBANK.COM>
> In the old versions of win32lib, that parameter to deleteItem() was not a
> Row number but an Item ID. It use to be that each item added to a listview
> was given a unique ID, and to delete them, you need to pass the item's ID.
> That has all changed - sort of. Items are still given unique ids, but most
> listview routines now work with row numbers and not ids.
It's confusing that listivews have both rows and ids to identify them. It
would be more clear if they would have only unique ids, so you don't have to
worry about if user presses column header and sorts items or if you have
autosort listview style.
