hi all, I would validate values input, on key, in multiple Entry widgets create at run time
I wrote this snip but even if the entry are created and the callback work well the relative value is missing #!/usr/bin/python3 import tkinter as tk class Application(tk.Frame): def __init__(self, master=None): super().__init__(master) self.vcmd = (self.register(self.validate), '%d', '%i', '%P', '%s', '%S', '%v', '%V', '%W') self.pack() self.init_ui() def init_ui(self): my_list = (2.14,18.3,76.4,2.38,0.425,2.68,1.09,382,8.59,0.495) for i in my_list: #this work #w = tk.Entry(self, bg='white') #this doesn't work w = tk.Entry(self, bg='white', validate = 'key', validatecommand = self.vcmd) w.insert(tk.END, i) w.pack() def validate(self, action, index, value_if_allowed, prior_value, text, validation_type, trigger_type, widget_name): # action=1 -> insert if(action=='1'): if text in '0123456789.-+': try: float(value_if_allowed) return True except ValueError: return False else: return False else: return True root = tk.Tk() app = Application(master=root) app.mainloop() tips? regards beppe -- https://mail.python.org/mailman/listinfo/python-list