Øyvind wrote:
> Hello.
>
> I am trying to write a gui that has a lot of checkboxes. It is over 200
> different ones. I use a for statement to generate:
>
> ver = 200
> for i in ['Car','House','Boat','Plane']:
> self.fra26_che01p = Checkbutton (self.fra26)
> self.fra26_che01p.place(in_=self.fra26,x=5,y=ver)
> self.fra26_che01p.configure(text=i)
> self.getattr(self,i)1 = IntVar()
> self.fra26_che01p.configure(variable=getattr(self,i))
> self.fra26_che01v = Checkbutton (self.fra26)
> self.fra26_che01v.place(in_=self.fra26,x=70,y=ver)
> #self.fra26_che01v.configure(text="1p")
> self.getattr(self,i)2 = IntVar()
> self.fra26_che01v.configure(variable=getattr(self,i))
> ver = ver + 17
>
> The variable does not work for obvious reasons. I need to change variable
> for each new creation. If I had made the variables manually, I would have
> written (variable=self.car1)/(variable=self.car2) and so forth. Is there
> some way I can make lots of variables without declaring them up front?
The usual way to do this is to keep a dictionary mapping the 'variable' names
to the values, or maybe just a list of the values. Since you access the
checkbuttons through IntVars you may not need to keep a reference to the button
itself. So maybe something like this:
self.vars = {}
ver = 200
for i in ['Car','House','Boat','Plane']:
check1 = Checkbutton (self.fra26)
check1.place(in_=self.fra26,x=5,y=ver)
check1.configure(text=i)
var1 = self.vars[i+'1'] = IntVar()
check1 .configure(variable=var1)
check2 = Checkbutton (self.fra26)
check2.place(in_=self.fra26,x=70,y=ver)
var2 = self.vars[i+'2'] = IntVar()
check2.configure(variable=var2)
ver = ver + 17
Now self.vars will have entries for 'Car1', 'Car2', etc. whose values will be
the corresponding IntVars.
Kent
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