How to save user text box input when user clicks 'ok' in python?

问题

I am trying to make a pop up window that takes two text inputs and then when the user clicks 'ok', it records the data. My problem is when I try to define the function of when the 'ok' button is pressed, record the data. I get the AttributeError: 'apples' object has no attribute 'TextCtrlInstance'when I press ok.

class apples(wx.Frame):
    def __init__(self,parent,id):
        wx.Frame.__init__(self,parent,id,'Add a stock',size=(300,300))
        frames=wx.Panel(self)
        frames.Bind(wx.EVT_MOTION, self.OnMove)
        frames.Bind(wx.EVT_MOTION, self.count)
        howmuch=wx.TextCtrl(frames,-1,'#of',pos=(200,173))
        cancel=wx.Button(frames,label='Cancel',pos=(100,250),size=(60,40))
        self.Bind(wx.EVT_BUTTON, self.ca, cancel)
        wx.StaticText(frames,-1,'Enter in valid stock ticker:',pos=(10,50))
        what=wx.TextCtrl(frames,-1,'AAPL',pos=(200,48))
        okbutton = wx.Button(frames,label='OK',pos=(200,250),size=(60,40))
        self.Bind(wx.EVT_BUTTON,self.oker,okbutton)
        wx.StaticText(frames,-1,'Enter in nuber of shares:',pos=(10,175))
    def ca(self,event):
        self.Destroy()
    def oker(self,event):
        #I need the user info when they press ok
        print 'Saved!'
        self.TextCtrlInstance.GetValue()
        self.Destroy()
    def OnMove(self,event):
        pass 
    def count(self,event):
        pass
if __name__ =='__main__':
    apps = wx.PySimpleApp()
    windows = apples(parent=None,id=-1)
    windows.Show()
    apps.MainLoop()

I hope this is enough to give me a solution! Thanks and I look forward to the answers!

回答1:

An educated guess as I didn't run your code:

def __init__(self,parent,id):
    wx.Frame.__init__(self,parent,id,'Add a stock',size=(300,300))
    self.frames=wx.Panel(self)
    self.frames.Bind(wx.EVT_MOTION, self.OnMove)
    self.frames.Bind(wx.EVT_MOTION, self.count)
    self.howmuch=wx.TextCtrl(frames,-1,'#of',pos=(200,173))
    self.cancel=wx.Button(frames,label='Cancel',pos=(100,250),size=(60,40))
    self.Bind(wx.EVT_BUTTON, self.ca, cancel)
    wx.StaticText(frames,-1,'Enter in valid stock ticker:',pos=(10,50))
    self.what=wx.TextCtrl(frames,-1,'AAPL',pos=(200,48))
    self.okbutton = wx.Button(frames,label='OK',pos=(200,250),size=(60,40))
    self.Bind(wx.EVT_BUTTON,self.oker,okbutton)
    wx.StaticText(frames,-1,'Enter in nuber of shares:',pos=(10,175))

[...]

def oker(self,event):
    qty = self.howmuch.GetValue()
    what = self.what.GetValue()
    print "Saved", qty, "of", what

You need to store your various widget as instance variables if you need to access them from other methods of the same object. In Python, this is written self.varname = ..... Usually from the __init__ special method. You probably missed a bunch of them (maybe not all those I've add -- YMMV)

Then, GetValue is a method of the TextCtrl class. In order to use it, it has to be invoked on an instance of that class.

Given your code, the only two (visible) instances of TextCtrl are "self.howmuch" and "self.what".

来源：https://stackoverflow.com/questions/24834010/how-to-save-user-text-box-input-when-user-clicks-ok-in-python