Hello
I try to use a Validator for a TxtCtrl placed in a Panel with a Button
in order to trigger the Validator and test the content of TxtCtrl.
I have looked into wxPython documentation and demo and searched in
google, but I am still unsuccessful yet.
My problem is that I do not manage to call the Validate() method of my
Validator from the button handler.
When I try to run my program I always have the following error:
AttributeError: 'Frame' object has no attribute 'Validate'
This error occurs when I call the Validate method inside my OnSave
button handler.
I tried to call the Validate method on different parents objects of
the
button and text control without success.
Thanks for you help!
Loïc
Here is the code:
#!/usr/bin/env python
import wx
class TextObjectValidator(wx.PyValidator):
def __init__(self):
print "init"
wx.PyValidator.__init__(self)
def Clone(self):
print "Clone"
return TextObjectValidator()
def Validate(self, win):
print "Validate"
textCtrl = self.GetWindow()
text = textCtrl.GetValue()
if len(text) == 0:
wx.MessageBox("A text object must contain some text!",
"Error")
textCtrl.SetBackgroundColour("pink")
textCtrl.SetFocus()
textCtrl.Refresh()
return False
else:
textCtrl.SetBackgroundColour(
wx.SystemSettings_GetColour(wx.SYS_COLOUR_WINDOW))
textCtrl.Refresh()
return True
def TransferToWindow(self):
print "TransferToWindow"
return True # Prevent wxDialog from complaining.
def TransferFromWindow(self):
print "TransferFromWindow"
return True # Prevent wxDialog from complaining.
class Frame(wx.Frame):
def __init__(self, parent=None, id=-1, title='<Title here>',
pos=wx.DefaultPosition, size=(400, 200)):
wx.Frame.__init__(self, parent, id, title, pos, size)
self.CenterOnScreen()
panel = wx.Panel(self, -1)
panel.SetBackgroundColour(wx.Colour(255, 255, 255))
fgs = wx.FlexGridSizer(cols=2, vgap=4, hgap=4)
self.label = wx.StaticText(panel, -1, 'word'+":")
self.tc = wx.TextCtrl(panel, -1, 'word', size=(50,-1),
validator=TextObjectValidator() )
fgs.Add(self.label, 1, flag=wx.ALIGN_RIGHT |
wx.ALIGN_CENTER_VERTICAL)
fgs.Add(self.tc, 1, flag=wx.EXPAND|wx.RIGHT, border=25)
b = wx.Button(panel, 2000, "Save" )
fgs.Add(b, 1, flag=wx.EXPAND | wx.RIGHT)
wx.EVT_BUTTON(panel, b.GetId(), self.OnSave)
panel.InitDialog()
panel.SetSizer( fgs )
panel.SetAutoLayout(1)
def OnSave(self, event):
print "OnSave"
### ERROR BELOW:
if self.Validate():
print "Validate OK"
else:
print "Validate KO"
pass
class App(wx.App):
def OnInit(self):
self.frame = Frame()
self.frame.Show()
self.SetTopWindow(self.frame)
return True
def main():
app = App()
app.MainLoop()
if __name__ == '__main__':
main() 3 7499
def _onButton_(self, event):
success = self._myTextCtrl.Validate()
return
self is the Frame here. _onButton_ therefore belongs to the frame and was
bound with wx.Button.Bind.
HTH
F. GEIGER
"Lo?c Mah?" <lo*******@free.fr> wrote in message
news:27**************************@posting.google.c om... Hello
I try to use a Validator for a TxtCtrl placed in a Panel with a Button in order to trigger the Validator and test the content of TxtCtrl.
I have looked into wxPython documentation and demo and searched in google, but I am still unsuccessful yet.
My problem is that I do not manage to call the Validate() method of my Validator from the button handler.
When I try to run my program I always have the following error: AttributeError: 'Frame' object has no attribute 'Validate'
This error occurs when I call the Validate method inside my OnSave button handler.
I tried to call the Validate method on different parents objects of the button and text control without success.
Thanks for you help!
Loïc
Here is the code:
#!/usr/bin/env python
import wx
class TextObjectValidator(wx.PyValidator): def __init__(self): print "init" wx.PyValidator.__init__(self)
def Clone(self): print "Clone" return TextObjectValidator()
def Validate(self, win): print "Validate" textCtrl = self.GetWindow() text = textCtrl.GetValue() if len(text) == 0: wx.MessageBox("A text object must contain some text!", "Error") textCtrl.SetBackgroundColour("pink") textCtrl.SetFocus() textCtrl.Refresh() return False else: textCtrl.SetBackgroundColour( wx.SystemSettings_GetColour(wx.SYS_COLOUR_WINDOW)) textCtrl.Refresh() return True
def TransferToWindow(self): print "TransferToWindow" return True # Prevent wxDialog from complaining.
def TransferFromWindow(self): print "TransferFromWindow" return True # Prevent wxDialog from complaining.
class Frame(wx.Frame):
def __init__(self, parent=None, id=-1, title='<Title here>', pos=wx.DefaultPosition, size=(400, 200)): wx.Frame.__init__(self, parent, id, title, pos, size) self.CenterOnScreen()
panel = wx.Panel(self, -1) panel.SetBackgroundColour(wx.Colour(255, 255, 255))
fgs = wx.FlexGridSizer(cols=2, vgap=4, hgap=4)
self.label = wx.StaticText(panel, -1, 'word'+":") self.tc = wx.TextCtrl(panel, -1, 'word', size=(50,-1), validator=TextObjectValidator() ) fgs.Add(self.label, 1, flag=wx.ALIGN_RIGHT | wx.ALIGN_CENTER_VERTICAL) fgs.Add(self.tc, 1, flag=wx.EXPAND|wx.RIGHT, border=25)
b = wx.Button(panel, 2000, "Save" ) fgs.Add(b, 1, flag=wx.EXPAND | wx.RIGHT) wx.EVT_BUTTON(panel, b.GetId(), self.OnSave)
panel.InitDialog() panel.SetSizer( fgs ) panel.SetAutoLayout(1)
def OnSave(self, event): print "OnSave" ### ERROR BELOW: if self.Validate(): print "Validate OK" else: print "Validate KO" pass
class App(wx.App):
def OnInit(self): self.frame = Frame() self.frame.Show() self.SetTopWindow(self.frame) return True
def main(): app = App() app.MainLoop()
if __name__ == '__main__': main()
Your solution does not seem work, at least on my system!
Does it works on your system ?
I got a message telling me that:
_myTextCtrl / self.tc has no Validate attribute
I have:
windows
python 2.3.4
wxpython 2.5.1
I finnaly got a kind of ugly workaround to call the Validate() function:
I had to replace:
if self.Validate():
by:
if self.tc.GetValidator().Validate(self.tc):
I find this quite ugly and not pythoninc at all,
but this is the only solution I found yet!
Loic
"F. GEIGER" <fr**********@fh-vorarlberg.ac.at> wrote in message news:<40***********************@aconews.univie.ac. at>... def _onButton_(self, event): success = self._myTextCtrl.Validate() return
self is the Frame here. _onButton_ therefore belongs to the frame and was bound with wx.Button.Bind.
HTH F. GEIGER
Sorry, must read:
def _onButton_(self, event):
success = self._myTextCtrl.GetValidator().Validate()
return
CAUTION: This code has never executed!
Of course, you have to supply _myTextCtrl with a validator upon creation.
Look at the wxPython demo: Core Windows Controls -> Validator. Have a look
into the help files, look for wxValidator.
HTH
Franz GEIGER
"Lo?c Mah?" <lo*******@free.fr> wrote in message
news:27**************************@posting.google.c om... Your solution does not seem work, at least on my system! Does it works on your system ?
I got a message telling me that:
_myTextCtrl / self.tc has no Validate attribute
I have: windows python 2.3.4 wxpython 2.5.1
I finnaly got a kind of ugly workaround to call the Validate() function:
I had to replace: if self.Validate():
by: if self.tc.GetValidator().Validate(self.tc):
I find this quite ugly and not pythoninc at all, but this is the only solution I found yet!
Loic
"F. GEIGER" <fr**********@fh-vorarlberg.ac.at> wrote in message
news:<40***********************@aconews.univie.ac. at>... def _onButton_(self, event): success = self._myTextCtrl.Validate() return
self is the Frame here. _onButton_ therefore belongs to the frame and
was bound with wx.Button.Bind.
HTH F. GEIGER This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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