def prev(self, event):
if self.skipper.skip(-1):
self.read()
else:
console.notify("cannot skip beyond first row")
def prev(self,event):
if self.skipper.skip(-1):
self.read()
else:
console.notify("cannot skip beyond first row")
def next(self, event):
if self.skipper.skip(1):
self.read()
else:
console.notify("cannot skip beyond last row")
def next(self,event):
if self.skipper.skip(1):
self.read()
else:
console.notify("cannot skip beyond last row")