This is a sneaky one. I'm sure there's more than one way to do this, but the way I came up with uses a wx.Timer to check and see if the text controls have values. If they do, then then re-enable the button. By the way, the answer I gave (which you linked) for disabling the button some time ago does work. Joran was correct...
Anyway, here is my implementation:
import wx
import wx.wizard
class WizardPage(wx.wizard.PyWizardPage):
def __init__(self, parent, title):
wx.wizard.PyWizardPage.__init__(self, parent)
self.next = None
self.prev = None
self.initializeUI(title)
def initializeUI(self, title):
# create grid layout manager
self.sizer = wx.GridBagSizer()
self.SetSizerAndFit(self.sizer)
def addWidget(self, widget, pos, span):
self.sizer.Add(widget, pos, span, wx.EXPAND)
# getters and setters
def SetPrev(self, prev):
self.prev = prev
def SetNext(self, next):
self.next = next
def GetPrev(self):
return self.prev
def GetNext(self):
return self.next
########################################################################
class MyWizard(wx.wizard.Wizard):
""""""
#----------------------------------------------------------------------
def __init__(self):
"""Constructor"""
wx.wizard.Wizard.__init__(self, None, -1, "Some Title")
self.SetPageSize((500, 350))
mypage1 = self.create_page1()
forward_btn = self.FindWindowById(wx.ID_FORWARD)
forward_btn.Disable()
self.timer = wx.Timer(self)
self.Bind(wx.EVT_TIMER, self.onUpdate, self.timer)
self.timer.Start(1)
self.RunWizard(mypage1)
#----------------------------------------------------------------------
def create_page1(self):
page1 = WizardPage(self, "Page 1")
d = wx.StaticText(page1, label="test")
page1.addWidget(d, (2, 1), (1,5))
self.text1 = wx.TextCtrl(page1)
page1.addWidget(self.text1, (3,1), (1,5))
self.text2 = wx.TextCtrl(page1)
page1.addWidget(self.text2, (4,1), (1,5))
page2 = WizardPage(self, "Page 2")
page3 = WizardPage(self, "Page 3")
# Set links
page2.SetPrev(page1)
page1.SetNext(page2)
page3.SetPrev(page2)
page2.SetNext(page3)
return page1
#----------------------------------------------------------------------
def onUpdate(self, event):
"""
Enables the Next button if both text controls have values
"""
value_one = self.text1.GetValue()
value_two = self.text2.GetValue()
if value_one and value_two:
forward_btn = self.FindWindowById(wx.ID_FORWARD)
forward_btn.Enable()
self.timer.Stop()
#----------------------------------------------------------------------
def main():
""""""
wizard = MyWizard()
#----------------------------------------------------------------------
if __name__ == "__main__":
app = wx.App(False)
main()
app.MainLoop()