The value of the entry widget doesn't get updated

[Clara]

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
widgetcontrolva riable.get(),.. but it seems that it won't work....
I can't print the value I input in the entry widget...Howeve r 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(s elf, msg):
import tkFont
self.x = StringVar()
self.y = StringVar()
self.x.set("Typ e here")
self.messageLab el= Label(self, text=msg, pady=15,
font=tkFont.Fon t(weight='bold' ,size=10))
self.messageLab el.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,just ify=LEFT, textvariable=se lf.x)
self.nameEntry. grid(row=1, column=3, columnspan=2)
self.nameEntry. update_idletask s()
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,just ify=LEFT, show='*',
textvariable=se lf.y)
self.passEntry. grid(row=2, column=3, columnspan=2)
self.passEntry. update_idletask s()
self.loginButto n = Button(self, text='Login', command =
VerifyProcessor (self.x.get(), self.y.get()) )
self.loginButto n.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(colum n=4, row=4)
self.createWidg ets(msg)

class VerifyProcessor :

def __init__(self, thename, thepass):
self.username = thename
self.password = thepass

def __call__(self):
print self.username
print self.password
app = LoginMenu(msg)
app.master.titl e("Login Menu")
app.master.maxs ize(280,200)
app.mainloop()

[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
widgetcontrolva riable.get(),.. but it seems that it won't work....
I can't print the value I input in the entry widget...Howeve r 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(s elf, msg):
import tkFont
self.x = StringVar()
self.y = StringVar()
self.x.set("Typ e here")
self.messageLab el= Label(self, text=msg, pady=15,
font=tkFont.Fon t(weight='bold' ,size=10))
self.messageLab el.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,just ify=LEFT, textvariable=se lf.x)
self.nameEntry. grid(row=1, column=3, columnspan=2)
self.nameEntry. update_idletask s()
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,just ify=LEFT, show='*',
textvariable=se lf.y)
self.passEntry. grid(row=2, column=3, columnspan=2)
self.passEntry. update_idletask s()
self.loginButto n = 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.loginButto n.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(colum n=4, row=4)
self.createWidg ets(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.g et()
print self.password.g et()

app = LoginMenu(msg)
app.master.titl e("Login Menu")
app.master.maxs ize(280,200)
app.mainloop()

HTH
Martin

[tiissa]

Clara wrote:
<SNIP>

self.loginButto n = Button(self, text='Login', command =
VerifyProcessor (self.x.get(), self.y.get()) ) <SNIP>
class VerifyProcessor :

def __init__(self, thename, thepass):
self.username = thename
self.password = thepass

def __call__(self):
print self.username
print self.password

Your VerifyProcessor object is constructed just before your loginButton,
not when you click.
Therefore you may want to pass the x and y StringVars to its __init__
function instead of their value at contruction. Therefore your __call__
method can .get() their values each time the button is clicked.

[ckwiguno]

Yes that solves my problem all right...THanks a bunch to both of you

[Clara]

Yes that solves my problem all right...THanks a bunch to both of you