The value of the entry widget doesn't get updated

[Martin Franklin]

Clara wrote:
> Hi, can somebody help me,..I have an assignment due next week but now
> I'm stuck with this problem....
> I tried to get values from entry widget using the
> widgetcontrolvariable.get(),..but it seems that it won't work....
> I can't print the value I input in the entry widget...However when I
> first set the value to something I can get the value just fine...
> This is my code
> Help please...
> 
> msg='*~*Please Login to use the system*~*'
> class LoginMenu(Frame):
> 	
> 	def createWidgets(self, msg):
> 		import tkFont
> 		self.x = StringVar()
> 		self.y = StringVar()	
> 		self.x.set("Type here") 
> 		self.messageLabel= Label(self, text=msg, pady=15,
> font=tkFont.Font(weight='bold' ,size=10))
> 		self.messageLabel.grid(row=0, columnspan=6)
> 		self.nameLabel= Label(self, text='UserName  :', padx=12,
> justify=LEFT)
> 		self.nameLabel.grid(row=1, column=0, ipadx=9, ipady=5)
> 		self.nameEntry= Entry(self,justify=LEFT, textvariable=self.x)
> 		self.nameEntry.grid(row=1, column=3, columnspan=2)
> 		self.nameEntry.update_idletasks()
> 		self.passLabel= Label(self, text='Password   :', padx=12,
> justify=LEFT)
> 		self.passLabel.grid(row=2, column=0,ipadx=9, ipady=5)
> 		self.passEntry= Entry(self,justify=LEFT, show='*',
> textvariable=self.y)
> 		self.passEntry.grid(row=2, column=3, columnspan=2)
> 		self.passEntry.update_idletasks()
> 		self.loginButton = Button(self, text='Login', command =
> VerifyProcessor(self.x.get(), self.y.get()) )


Here is the problem, the values of the two entries have been got'on
before the button is pressed and the command is called.

I would replace the above with:-

VerifyProcessor(self.x, self.y)) )

and see below for the changes to the command callback class


> 		self.loginButton.grid(row=4, column=3, ipadx=15, ipady=3, pady=20)
> 		self.quitButton = Button(self, text='Exit', command = self.quit) 
> 		self.quitButton.grid(row=4, column=4, ipadx=20, ipady=3, pady=20,
> padx=10)
> 
> 	def __init__(self, msg, master=None):
> 		Frame.__init__(self, master)
> 		self.grid(column=4, row=4)
> 		self.createWidgets(msg)
> 
> class VerifyProcessor:
> 
> 	def __init__(self, thename, thepass):
> 		self.username = thename
> 		self.password = thepass
> 
> 	def __call__(self):
> 		print self.username
> 		print self.password

		print self.username.get()
		print self.password.get()



> 
> app = LoginMenu(msg)
> app.master.title("Login Menu")
> app.master.maxsize(280,200)
> app.mainloop()


HTH
Martin