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List: pykde
Subject: [PyQt] reselecting last item in a qtreewidget after a clear
From: Jason Rahm <J.Rahm () F5 ! com>
Date: 2011-07-28 4:09:22
Message-ID: B6CD82222C044C49BC851157ABB8637E606B3289 () SEAEMBX01 ! olympus ! F5Net ! com
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I have an item in the qtreewidget that when selected displays text in another widget. \
When I do a save on that text, it updates the file on the remote system and the local \
data file, but when the qtreeview is cleared and rebuilt, my selected item is \
obviously no longer selected. How do I ensure the previously selected item is \
selected once I do the clear? I think the method I need is currentItemChanged. \
Here's the code I'm working with:
def on_treeWidget_iRulesList_currentItemChanged(self, currentItem, \
previousItem): x = currentItem.text(0)
y = previousItem.text(0)
print x, y
When I first click an item, I get an error on the y = line that NoneType object has \
no attribute 'text'. Once I select something else, however, I get the text I expect. \
When I do a refresh of the qtreewidget list, I get the error again, only on the x = \
line. Any ideas how I can fix this? Thanks,
Jason
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<p class="MsoNormal">I have an item in the qtreewidget that when selected displays \
text in another widget. When I do a save on that text, it updates the file on \
the remote system and the local data file, but when the qtreeview is cleared and \
rebuilt, my selected item is obviously no longer selected. How do I ensure the \
previously selected item is selected once I do the clear? I think the method I \
need is currentItemChanged. Here’s the code I’m working \
with:<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> \
def on_treeWidget_iRulesList_currentItemChanged(self, currentItem, \
previousItem):<o:p></o:p></p> <p \
class="MsoNormal"> &n \
bsp; &nbs \
p; \
x = currentItem.text(0)<o:p></o:p></p> <p \
class="MsoNormal"> &n \
bsp; &nbs \
p; \
y = previousItem.text(0)<o:p></o:p></p> <p \
class="MsoNormal"> &n \
bsp; &nbs \
p; \
print x, y<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When I first click an item, I get an error on the y = line that \
NoneType object has no attribute ‘text’. Once I select something \
else, however, I get the text I expect. When I do a refresh of the qtreewidget \
list, I get the error again, only on the x = line. Any ideas how I can fix \
this? Thanks,<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Jason<o:p></o:p></p>
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