On Tuesday 16 January 2007 18:57, Tina I wrote:
> I have a QListView with a number of columns. In order to filter the
> output I iterate using QListViewItemIterator looking for the string
> entered by the user (filterString). Currently I do it this way:
[Reformatted code for quoting purposes]
> it = QListViewItemIterator(self.authListView)
> try:
> while it:
> item = it.current()
> if item.text(0).contains(filterString) or \
> item.text(1).contains(filterString) or \
> item.text(2).contains(filterString):
>
> item.setVisible(1)
> else:
> item.setVisible(0)
> it +=1
> except AttributeError:
> pass
>
> Basically I iterate through the ListView until it goes beyond the list
> and raise an exception, which I catch. It works but to be honest it
> looks and feels ugly; "Do something until it goes wrong"
>
> So, question: How can I know I have reached the last item in the
> QListView?
When it.current() returns None. You can rewrite what you already
have like this:
it = QListViewItemIterator(self.authListView)
while it.current():
item = it.current()
if item.text(0).contains(filterString) or \
item.text(1).contains(filterString) or \
item.text(2).contains(filterString):
item.setVisible(1)
else:
item.setVisible(0)
it += 1
If you don't like calling item.current() twice for some reason,
you could write this:
it = QListViewItemIterator(self.authListView)
item = it.current()
while item:
if item.text(0).contains(filterString) or \
item.text(1).contains(filterString) or \
item.text(2).contains(filterString):
item.setVisible(1)
else:
item.setVisible(0)
it += 1
item = it.current()
David
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