我有幾個較大的tkinter/python程式,我想將它們合并到一個程式中,該程式在呼叫另一個程式時會清除框架;每個程式當前都在一個函式中(當我理解它們時,我可能最終應該使用類),并且這些函式中的每一個都顯示在一個表單上,如果確實存在,則清除之前的小部件。
下面的代碼只是讓我了解如何執行此操作的一個小嘗試,但它不起作用。
當我呼叫 widget.destroy() 函式時,它會洗掉框架 (DisplayFrame) 并且不會清除其中的小部件,因此不會顯示新的小部件。
這是當前的試用代碼:
#!/usr/bin/env python3
import tkinter as tk
from tkinter import *
from tkinter import ttk
#import pandas as pd
import MultiTempsP3
import datetime, time
from tkinter import messagebox
import sqlite3
from tkinter import colorchooser
from configparser import ConfigParser
import os
import csv
if os.environ.get('DISPLAY','') == "":
print('no display found.Using :0.0')
os.environ.__setitem__('DISPLAY',':0.0')
root = tk.Tk()
root.title("Kombucha Program")
root.geometry("1400x800")
root.minsize(width=900, height=600)
#root.maxsize(width=1400, height = 900)
root.grid_rowconfigure(3, weight=1)
root.grid_columnconfigure(2, weight=1)
root.configure( bg = '#000080' )
DisplayFrame = tk.Frame(root, width=1200, height = 630, bg = 'yellow') #0059b3')
DisplayFrame.grid(column=0,row=1, sticky = N, in_ = root)
rightFrame = tk.Frame(root, width = 120, height = 390, bg = 'white') # #000080
rightFrame.grid(column = 1, row = 0, pady = 10, padx = 10)
lblFrame = tk.Frame(root, height = 70, width = 670, bg = 'black')
lblFrame.grid(column = 0, row = 0, sticky =N, in_ = root)
##'W' stands for West = WrightFrmae (west fframe on the right of screen
#WrightFrame = tk.Frame(rightFrame, width = 70, height = 300, bg = 'green') # #000080
#WrightFrame.grid(column = 0, row = 1)
WidgetFrame = tk.Frame(root, height = 300, width = 120, bg = 'red') # #000080
WidgetFrame.grid(column=0,row=2, pady = 30)
fromTemp = MultiTempsP3.temps("65cd6bd")
lblTemp = Label(rightFrame, text=fromTemp).grid(row=1,column=0,pady=0 )
#lblTemp.pack()
def clearDisplayFrame():
for widgets in DisplayFrame.winfo_children():
widgets.destroy()
###***### - This section is in the right top little frame = rightFrame
state = "yes" ## delete this row and use below state=GPIO when on an RPi
#state = GPIO.input(17)
if state:
state_17="GPIO_17 (HeatPad) is On "
else:
state_17="GPIO_17 (HeatPad) is Off "
lblHeatPad = Label(rightFrame, text=state).grid(row=3,column=0,pady=0 ) #shows as text in the window
#lblHeatPad.pack() #organizes widgets in blocks before placing them in the parent.
###***### End of rightFrame widgets
def func_quit():
root.destroy()
def openData():
clearDisplayFrame()
print("I am inside openData()")
lbltrial=tk.Label(DisplayFrame,text="trial").grid(row=3, column=2)
def func_Temps():
clearDisplayFrame()
print("I am inside func_Temps()")
#DisplayFrame = tk.Frame(root, width=1200, height = 630, bg = 'yellow') #0059b3')
#DisplayFrame.grid(column=0,row=1, sticky = N, in_ = root)
lblSomething = tk.Label(DisplayFrame, text = "Open Temps").grid(row=2,column=2)
###***### This section is top of left = lblFrame
exitButton = tk.Button(lblFrame, text="Quit the Program", width = 12, command=root.destroy, bg= "magenta")
exitButton.grid(row = 0, column = 0, columnspan = 1, pady = 5, padx = 5)
dataButton = Button(lblFrame, text="Open Dates Window", command=openData).grid(row=0, column=1) ## the open refers to the above function
tempsButton= Button(lblFrame, text="Open Temps Info", command=func_Temps).grid(row=0, column=2)
###***### End of top left widget in lblFrame
mainloop()
uj5u.com熱心網友回復:
作為答案,這是一種使用 2 幀并通過單擊開關在它們之間切換的方法。這是通常在程式編程中實作幀之間切換的方式,AFAIK:
from tkinter import *
root = Tk()
def change(frame):
frame.tkraise() # Raising the passed frame
window1 = Frame(root)
window2 = Frame(root)
window1.grid(row=0,column=0) # Grid in the same location so one will cover/hide the other
window2.grid(row=0,column=0)
# Contents inside your frame...
Label(window1,text='This is page 1',font=(0,21)).pack()
Label(window2,text='This is page 2',font=(0,21)).pack()
# Buttons to switch between frame by passing the frame as an argument
Button(root,text='Page 1',command=lambda: change(window1)).grid(row=1,column=0,stick='w')
Button(root,text='Page 2',command=lambda: change(window2)).grid(row=1,column=0,stick='e')
root.mainloop()
因此,與其銷毀框架內的所有專案,不如提升另一個框架,因為被破壞的小部件無法恢復。
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