[Tutor] CheckButtons reset to default values

[Alan Gauld]

On 10/02/17 15:56, Pooja Bhalode wrote:

> root = Tk()
> root.title("Design of Experiments with Parameter Estimation")
> root.geometry("1000x1000")
> 
> def DesignPoint():
>     rootdesign=Tk()

You should o0nly have one root. This create a new root
everytime you xcall Designpoint and even if thats only
once you still have a root already at the global level.

It would be better to define the function to have
a root parameter that you can pass in when you call it.

>     rootdesign.title("Estimation of Experimental Precision for Data
> Var-CoVar")
>     rootdesign.geometry("600x400")

Are you trying to create a second window? If so you
should probably use the TopLevel widget for that but
with the same toplevel root.

Alternatively you could create a Dialog using the Dialog
module but that probably requires a bit more OOP than
you seem comfortable with.


>     frame1 = Frame(rootdesign)
>     frame1.grid(row=0, column=0)
> 
>     ## Inserting Checkboxes:
>     label1 = Label(frame1, text="1. Design Point Suggestions")
>     label1.grid(row=0, column=0,sticky=W )
>     var1 = IntVar()
>     var2 = IntVar()
>     var3 = IntVar()
>     var4 = IntVar()

These vars should probably be declared and initialised
outside the function.

>     Checkbutton(frame1, text = "Vertices", variable=var1, onvalue=1,
> offvalue=0).grid(row=1, column = 1, sticky=W)
>     Checkbutton(frame1, text = "Edges", variable=var2).grid(row=2, column =
> 1, sticky=W)
>     Checkbutton(frame1, text = "Faces", variable=var3).grid(row=3, column =
> 1, sticky=W)
>     check = Checkbutton(frame1, text = "Center", variable=var4)
>     check.grid(row=4, column = 1, sticky=W)
>     check.select()
> 
> 
>     label2 = Label(frame1, text="2. Cut off Improvement %")
>     label2.grid(row=5, column=0,sticky=W)
>     Entry2 = Entry(frame1)
>     Entry2.insert(END, '05')
>     Entry2.grid(row=5, column = 1, sticky = W)
> 
>     label3 = Label(frame1, text="3. Simulation of proposed Experiments: ")
>     label3.grid(row=5, column=0,sticky=W)
> 
>     label4 = Label(frame1, text="4. Calculate sensitivities")
>     label4.grid(row=6, column=0,sticky=W)
> 

The above is ok but...


>     def default():
>         print "Inside default"
> 
>         var1.set(0)
>         var2.set(0)
>         var3.set(0)
>         var4.set(1)
>         Entry2.delete(0, END)
>         Entry2.insert(END,'05')

You have now defined this function inside the Designpoint
function. It should probably be outside except you would
lose visibility of the vars - which is why they should be global.

>    Button(frame1, text = "Select Default value",
> command=default.grid(row=0, column = 2, sticky=W)


But you cannot apply grid to a function. your command
should be default. In suspect you are just missing a
closing parenthesis

    Button(frame1,
           text = "Select Default value",
           command=default).grid(row=0, column = 2, sticky=W)

>     rootdesign.mainloop()
> 
> 
> ## Secondary menu bar:
> menusec = Frame(root, bg="white")
> butt1 = Button(menusec, text="Part One", command=DesignPoint)
> butt1.pack(side=LEFT, padx=1)
> menusec.pack(side=TOP, fill=X)
> 
> 
> root.mainloop()
> 
> It still doesn't work for me for the reason I am not able to figure out.
> Please let me know.

You have quite a few issues. The main things you should sort out are:

1) only use one root.
2) put the vars and default definitions outside the
   designpoint function.
3) add the closing parenthesis.


-- 
Alan G
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