[Tkinter-discuss] Clearing out a Frame

[John McMonagle]

Alexnb wrote:
> I have an app that has a base frame, and some other frames inside of that
> base frame. My question is if there is some way to clear out the base frame.
> Meaning leaving an empty baseframe. See I have a function that pulls up
> frames inside that base frame. The problem comes when I hit a button(this
> button is the button that first shows the frames inside the base frame,
> basically you click it and the internal frames show up.) and then I hit it
> again, I get some weird stuff. Okay, this is getting really complicated. I
> really just want to know if I can clear out a frame, and still be able to
> fill it back up again. If you want ot uunderstand further I'll post the code
> at the bottom and just run it, then hit the "Word List" button, then hit it
> again, you'll see what I am talking about. 
> 
Make a list of the widgets when they are created and destroy the widgets
in this list whenever you have to re-define them.

Regards,

John


Your code with mods:

from Tkinter import *

class App:
    def __init__(self, parent):
        self.parent = parent
        self.parent.geometry("500x250")

        self.list_of_widgets = []

        #----------------------------Contstants for Buttons------------

        button_padx = "2m"
        button_pady = "1m"

        #--------------------------end constants-----------------------

        self.baseContainer = Frame(self.parent)
        self.baseContainer.pack(side=TOP, fill = BOTH, expand=NO)

        #the Top Frame with all the buttons
        self.topContainer = Frame(self.baseContainer)
        self.topContainer.pack(side=TOP, expand=YES, ipadx=5,
                               ipady=5, fill = X, anchor=N)



        #the frame with the main things the user will use
        self.mainContainer = Frame(self.baseContainer)
        self.mainContainer.pack(side=TOP,
                                ipadx = 5,
                                ipady = 5,
                                anchor=CENTER,
                                expand=YES,
                                fill=BOTH)

        #---------------------Top Buttons-----------------------------

        self.defineButton = Button(self.topContainer, padx=button_padx,
                                   pady=button_pady)
        self.defineButton.configure(text="Word List",
command=self.define_Frame)
        self.defineButton.pack(side=LEFT)

        #--------------------------------------------------------------
    def define_Frame(self):
        # destroy all the child widgets of the Frame
        for widget in self.list_of_widgets:
            widget.destroy()
        self.list_of_widgets = []

        myMessage="Please type in all the words that you would like to
define"
        xxx = Label(self.mainContainer, text=myMessage,
                    justify=LEFT)
        xxx.pack(side=TOP, anchor=N)
        self.list_of_widgets.append(xxx)

        #The LEFT Frame that comes up when you hit define
        self.defineContainer1 = Frame(self.mainContainer)
        self.defineContainer1.pack(side=LEFT, ipadx = 5,
                                   ipady = 5, expand=YES, fill=BOTH)
        self.list_of_widgets.append(self.defineContainer1)

        #The RIGHT Frame that comes up when you hit define
        self.defineContainer2 = Frame(self.mainContainer)
        self.defineContainer2.pack(side=LEFT, ipadx=5,
                                    ipady=5, expand=YES, fill=BOTH)
        self.list_of_widgets.append(self.defineContainer2)

        #This frame is where the define button goes
        self.defineButtonF = Frame(self.baseContainer)
        self.defineButtonF.pack(side=TOP,
                                anchor=S,
                                ipady=5,
                                ipadx=5,
                                fill=BOTH,
                                expand=NO)
        self.list_of_widgets.append(self.defineButtonF)

        #----------------------------Contstants for Buttons------------

        self.button_padx = "2m"
        self.button_pady = "1m"

        #--------------------------end constants-----------------------




        #----------------------STUFF FOR DEFINE
FRAME-------------------------

        self.e1 = Entry(self.defineContainer1)
        self.e1.pack(fill=X)

        self.e2 = Entry(self.defineContainer1)
        self.e2.pack(fill=X)

        self.e3 = Entry(self.defineContainer1)
        self.e3.pack(fill=X)

        self.e4 = Entry(self.defineContainer1)
        self.e4.pack(fill=X)

        self.e5 = Entry(self.defineContainer1)
        self.e5.pack(fill=X)

        self.e6 = Entry(self.defineContainer1)
        self.e6.pack(fill=X)

        self.e7 = Entry(self.defineContainer1)
        self.e7.pack(fill=X)

        self.e8 = Entry(self.defineContainer2)
        self.e8.pack(fill=X)

        self.e9 = Entry(self.defineContainer2)
        self.e9.pack(fill=X)

        self.e10 = Entry(self.defineContainer2)
        self.e10.pack(fill=X)

        self.e11 = Entry(self.defineContainer2)
        self.e11.pack(fill=X)

        self.e12 = Entry(self.defineContainer2)
        self.e12.pack(fill=X)

        self.e13 = Entry(self.defineContainer2)
        self.e13.pack(fill=X)

        self.e14 = Entry(self.defineContainer2,)
        self.e14.pack(fill=X)

#-------------------------Define Button Stuff-------------------------

        #Define it button
        self.defineIt= Button(self.defineButtonF, command=self.DefineClick)
        self.defineIt.configure(text="Define!")
        self.defineIt.bind("<Return>", self.DefineClickE)
        self.defineIt.pack(side=TOP,
                            anchor=N,
                            padx=self.button_padx,
                            pady=self.button_pady,)
    def DefineClickE(self, event):
        print "Define was hit with Enter"
        self.DefineClick()
    def DefineClick(self):
        print "Define was activated."

#----------------------------end define Button Stuff----------------------



root = Tk()
app = App(root)
root.mainloop()