John Salerno <[EMAIL PROTECTED]> writes:
> But if the user doesn't enter any text, I don't want the method to
> return at all (even None). I need an error dialog to pop up and tell
> him to enter a value (or press Cancel).
Oh, I see. You really want something like repeat...while, which Python
doesn't have. Anyway I start to prefer something like (untested):
def create_db_name(self):
try:
while True:
dlg = wx.TextEntryDialog(self.frame, 'Enter a database name:',
'Create New Database')
if dlg.ShowModal() != wx.ID_OK:
return None
db_name = dlg.GetValue()
if db_name:
return db_name
pop_up_error_dialog("please enter a value or press cancel")
finally:
dlg.Destroy()
If the logic were more complex you could also create an internal
exception class to deal with the user hitting cancel.
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