如何将项目从列表附加到列表框？
How to append items from List to Listbox?
在我的程序中有一个字段，用户可以在其中输入姓名，之后该姓名将保存在“个人”列表中。
之后，用户转到一个新页面，在那里他可以查看包含所有输入名称的列表，如果需要，return 到上一页添加另一个名称。
万事大吉，但在“个人”列表中输入的所有名称都没有显示在下一页的列表框中，而我可以在控制台的列表中看到它们的显示方式。
我想知道如何将这些名称从列表附加到列表框。
我的代码：
from tkinter import *
import tkinter.ttk as ttk
class CollegeApp(Tk):
def __init__(self):
Tk.__init__(self)
container = ttk.Frame(self)
container.pack(side="top", fill="both", expand=True)
self.frames = {}
for F in (IndividPage, listCheckPage):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(IndividPage)
self.lift()
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class IndividPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.userEntry()
def userEntry(self):
headingTest = Label(self, text="Enter your UserName:", font="Arial 20")
headingTest.grid(row=0, column=0, pady=5, padx=5)
self.usernameEnter = Entry(self, width=40)
self.usernameEnter.grid(row=0, column=1, padx=5, pady=5)
confirmBtn = Button(self, text="Confirm User", font="Arial 16",
command=self.confirm)
confirmBtn.config(height=4, width=12)
confirmBtn.grid(row=2, column=2, sticky=E, padx=45, pady=360)
def confirm(self):
if self.add_to_indivList():
self.controller.show_frame(listCheckPage)
def add_to_indivList(self):
users = self.usernameEnter.get()
Individuals.append(users)
processedInd = list(dict.fromkeys(Individuals))
self.controller.show_frame(listCheckPage)
print(processedInd)
class listCheckPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.userEntry()
def userEntry(self):
indList = Listbox(self)
indList.config(height=13, width=15)
indList.grid(row=1, column=0, padx=10, pady=20)
for user in Individuals:
indList.insert(user)
INDHeading = Label(self, text="Individuals", font="Arial 16")
INDHeading.grid(row=0, column=0, pady=0, padx=15, sticky=N)
addUserBtn = Button(self, text="Add User", font="Arial 16",
command=lambda: self.controller.show_frame(IndividPage))
addUserBtn.config(height=3, width=80)
addUserBtn.grid(row=2, column=0, columnspan=5, pady=0, sticky=N)
BackBtn = Button(self, text="BACK", font="Arial 16",
command=lambda:self.controller.show_frame(IndividPage))
BackBtn.config(height=2, width=12)
BackBtn.grid(row=4, column=0, sticky=W, padx=0, pady=0)
if __name__ == '__main__':
Individuals = []
app = CollegeApp()
app.geometry("800x500")
app.title('Points Counter')
app.mainloop()
好吧，由于我是新手，研究了很久，还是找到了解决问题的方法（感谢Reddit用户）。
问题是“userEntry”函数仅在创建“listCheckPage”框架期间被调用。
当我将新用户添加到“Individuals”列表然后提升“listCheckPage”框架时，它没有调用“userEntry”函数，因此列表框保持为空。
解决方法是：
from tkinter import *
import tkinter.ttk as ttk
class CollegeApp(Tk):
def __init__(self):
Tk.__init__(self)
self.container = ttk.Frame(self)
self.container.pack(side="top", fill="both", expand=True)
self.frames = {}
for F in (IndividPage, listCheckPage):
frame = F(self.container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(IndividPage)
self.lift()
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
def show_list_frame(self):
list_frame = listCheckPage(self.container, self)
list_frame.grid(row=0, column=0, sticky="nsew")
list_frame.tkraise()
class IndividPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.userEntry()
def userEntry(self):
headingTest = Label(self, text="Enter your UserName:", font="Arial 20")
headingTest.grid(row=0, column=0, pady=5, padx=5)
self.usernameEnter = Entry(self, width=40)
self.usernameEnter.grid(row=0, column=1, padx=5, pady=5)
confirmBtn = Button(self, text="Confirm User", font="Arial 16",
command=self.confirm)
confirmBtn.config(height=4, width=12)
confirmBtn.grid(row=2, column=2, sticky=E, padx=45, pady=360)
def confirm(self):
if self.add_to_indivList():
pass
def add_to_indivList(self):
users = self.usernameEnter.get()
Individuals.append(users)
processedInd = list(dict.fromkeys(Individuals))
self.controller.show_list_frame()
print(processedInd)
class listCheckPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.userEntry()
def userEntry(self):
indList = Listbox(self)
indList.config(height=13, width=15)
indList.grid(row=1, column=0, padx=10, pady=20)
for user in Individuals:
indList.insert(END, user)
INDHeading = Label(self, text="Individuals", font="Arial 16")
INDHeading.grid(row=0, column=0, pady=0, padx=15, sticky=N)
addUserBtn = Button(self, text="Add User", font="Arial 16",
command=lambda: self.controller.show_frame(IndividPage))
addUserBtn.config(height=3, width=80)
addUserBtn.grid(row=2, column=0, columnspan=5, pady=0, sticky=N)
BackBtn = Button(self, text="BACK", font="Arial 16",
command=lambda: self.controller.show_frame(IndividPage))
BackBtn.config(height=2, width=12)
BackBtn.grid(row=4, column=0, sticky=W, padx=0, pady=0)
if __name__ == '__main__':
Individuals = []
app = CollegeApp()
app.geometry("800x500")
app.title('Points Counter')
app.mainloop()
在我的程序中有一个字段，用户可以在其中输入姓名，之后该姓名将保存在“个人”列表中。
之后，用户转到一个新页面，在那里他可以查看包含所有输入名称的列表，如果需要，return 到上一页添加另一个名称。
万事大吉，但在“个人”列表中输入的所有名称都没有显示在下一页的列表框中，而我可以在控制台的列表中看到它们的显示方式。
我想知道如何将这些名称从列表附加到列表框。
我的代码：
from tkinter import *
import tkinter.ttk as ttk
class CollegeApp(Tk):
def __init__(self):
Tk.__init__(self)
container = ttk.Frame(self)
container.pack(side="top", fill="both", expand=True)
self.frames = {}
for F in (IndividPage, listCheckPage):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(IndividPage)
self.lift()
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class IndividPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.userEntry()
def userEntry(self):
headingTest = Label(self, text="Enter your UserName:", font="Arial 20")
headingTest.grid(row=0, column=0, pady=5, padx=5)
self.usernameEnter = Entry(self, width=40)
self.usernameEnter.grid(row=0, column=1, padx=5, pady=5)
confirmBtn = Button(self, text="Confirm User", font="Arial 16",
command=self.confirm)
confirmBtn.config(height=4, width=12)
confirmBtn.grid(row=2, column=2, sticky=E, padx=45, pady=360)
def confirm(self):
if self.add_to_indivList():
self.controller.show_frame(listCheckPage)
def add_to_indivList(self):
users = self.usernameEnter.get()
Individuals.append(users)
processedInd = list(dict.fromkeys(Individuals))
self.controller.show_frame(listCheckPage)
print(processedInd)
class listCheckPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.userEntry()
def userEntry(self):
indList = Listbox(self)
indList.config(height=13, width=15)
indList.grid(row=1, column=0, padx=10, pady=20)
for user in Individuals:
indList.insert(user)
INDHeading = Label(self, text="Individuals", font="Arial 16")
INDHeading.grid(row=0, column=0, pady=0, padx=15, sticky=N)
addUserBtn = Button(self, text="Add User", font="Arial 16",
command=lambda: self.controller.show_frame(IndividPage))
addUserBtn.config(height=3, width=80)
addUserBtn.grid(row=2, column=0, columnspan=5, pady=0, sticky=N)
BackBtn = Button(self, text="BACK", font="Arial 16",
command=lambda:self.controller.show_frame(IndividPage))
BackBtn.config(height=2, width=12)
BackBtn.grid(row=4, column=0, sticky=W, padx=0, pady=0)
if __name__ == '__main__':
Individuals = []
app = CollegeApp()
app.geometry("800x500")
app.title('Points Counter')
app.mainloop()
好吧，由于我是新手，研究了很久，还是找到了解决问题的方法（感谢Reddit用户）。
问题是“userEntry”函数仅在创建“listCheckPage”框架期间被调用。
当我将新用户添加到“Individuals”列表然后提升“listCheckPage”框架时，它没有调用“userEntry”函数，因此列表框保持为空。
解决方法是：
from tkinter import *
import tkinter.ttk as ttk
class CollegeApp(Tk):
def __init__(self):
Tk.__init__(self)
self.container = ttk.Frame(self)
self.container.pack(side="top", fill="both", expand=True)
self.frames = {}
for F in (IndividPage, listCheckPage):
frame = F(self.container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(IndividPage)
self.lift()
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
def show_list_frame(self):
list_frame = listCheckPage(self.container, self)
list_frame.grid(row=0, column=0, sticky="nsew")
list_frame.tkraise()
class IndividPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.userEntry()
def userEntry(self):
headingTest = Label(self, text="Enter your UserName:", font="Arial 20")
headingTest.grid(row=0, column=0, pady=5, padx=5)
self.usernameEnter = Entry(self, width=40)
self.usernameEnter.grid(row=0, column=1, padx=5, pady=5)
confirmBtn = Button(self, text="Confirm User", font="Arial 16",
command=self.confirm)
confirmBtn.config(height=4, width=12)
confirmBtn.grid(row=2, column=2, sticky=E, padx=45, pady=360)
def confirm(self):
if self.add_to_indivList():
pass
def add_to_indivList(self):
users = self.usernameEnter.get()
Individuals.append(users)
processedInd = list(dict.fromkeys(Individuals))
self.controller.show_list_frame()
print(processedInd)
class listCheckPage(ttk.Frame):
def __init__(self, parent, controller):
self.controller = controller
ttk.Frame.__init__(self, parent)
self.userEntry()
def userEntry(self):
indList = Listbox(self)
indList.config(height=13, width=15)
indList.grid(row=1, column=0, padx=10, pady=20)
for user in Individuals:
indList.insert(END, user)
INDHeading = Label(self, text="Individuals", font="Arial 16")
INDHeading.grid(row=0, column=0, pady=0, padx=15, sticky=N)
addUserBtn = Button(self, text="Add User", font="Arial 16",
command=lambda: self.controller.show_frame(IndividPage))
addUserBtn.config(height=3, width=80)
addUserBtn.grid(row=2, column=0, columnspan=5, pady=0, sticky=N)
BackBtn = Button(self, text="BACK", font="Arial 16",
command=lambda: self.controller.show_frame(IndividPage))
BackBtn.config(height=2, width=12)
BackBtn.grid(row=4, column=0, sticky=W, padx=0, pady=0)
if __name__ == '__main__':
Individuals = []
app = CollegeApp()
app.geometry("800x500")
app.title('Points Counter')
app.mainloop()