Hi,
Thus spoketh Cam Farnell <ms...@bitflipper.ca>
unto us on Sat, 26 Nov 2011 12:54:09 -0400:
(..)
>
> If the user clicks on Menubutton-A then the corresponding handler runs
> as expected. If, without making a choice from menu A, the user then
> clicks on Menubutton-B then - and this is the nub of the problem - the
> handler bound to Menubutton-B does NOT run. If the user now clicks on
> Menubutton-C, then the handler for B, yes B, runs.
Not sure, I guess this has something to do with the Menu's event-grabbing.
Maybe a better solution than binding to the Menubuttons is to use the
menu's postcommand option as in:
import Tkinter as tk
class Application(tk.Frame):
def __init__(self, master=None):
tk.Frame.__init__(self, master)
self.pack()
self.MenuButtonA = tk.Menubutton(self,text='Menu Button A')
self.MenuButtonA.pack(side='left')
self.TA = TA = tk.Menu(self.MenuButtonA)
TA.add_command(label='Dummy 1')
TA.add_command(label='Dummy 2')
self.MenuButtonA['menu'] = TA
TA.config(postcommand=self.HandlerA)
self.MenuButtonB = tk.Menubutton(self,text='Menu Button B')
self.MenuButtonB.pack(side='left')
self.TB = TB = tk.Menu(self.MenuButtonB)
TB.add_command(label='Dummy 1')
TB.add_command(label='Dummy 2')
self.MenuButtonB['menu'] = TB
TB.config(postcommand=self.HandlerB)
self.InfoLabel = tk.Label(self,text='---------')
self.InfoLabel.pack(side='left')
def HandlerA(self,Event=None):
self.InfoLabel['text'] = 'Handler A'
print 'Handler A'
self.TA.entryconfigure(1, label='FOO')
def HandlerB(self,Event=None):
self.InfoLabel['text'] = 'Handler B'
print 'Handler B'
self.TB.entryconfigure(1, state='disabled')
app = Application()
app.master.title("Sample application")
app.mainloop()
Best regards
Michael
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