大家好， 我正在尝试创建组合框来输入一些日期，它工作了一段时间，但是，我不知道为什么，它停止出现在我的框架中，我无法修复它。 我还想知道更多的事情:是否可以用 0(如 01、02 等)输入当天的输入，并且还可以使用月份中的某一天的范围之类的东西，而不是全部写入。我不能这样做，因为当我尝试时总是会出错。 感谢您的帮助!
import tkinter as tk
from tkinter import *
import tkinter.ttk
class MainApplication(tk.Frame):
def __init__(self, parent, *args, **kwargs):
tk.Frame.__init__(self, parent, *args, **kwargs)
self.parent = parent
###BIRTHDAY
birthday_label = tk.Label(self, text="Birthday:", font=('times', 14), anchor='e')
birthday_label.grid(row=3, sticky='e')
month_day = {
'January': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17',
'18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'],
'February': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17',
'18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29'],
'March': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18',
'19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'],
'April': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18',
'19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30'],
'May': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18',
'19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'],
'June': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18',
'19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30'],
'July': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18',
'19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'],
'August': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17',
'18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'],
'September': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17',
'18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30'],
'October': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '11', '12', '13', '14', '15', '16', '17', '18',
'19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'],
'November': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '11', '12', '13', '14', '15', '16', '17', '18',
'19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30'],
'December': ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17',
'18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31']}
def getUpdateData(self, event):
self.day['values'] = month_day[self.month.get()]
self.day = IntVar(self)
self.day.set(1)
self.day = ttk.Combobox(self)
self.day.grid(row=3, column=1)
self.month = IntVar(self)
self.month.set("January")
self.month = ttk.Combobox(self, values=list(month_day.keys()))
self.month.bind('<<ComboboxSelected>>', self.getUpdateData)
self.month.grid(row=3, column=1, sticky='w')
self.year = IntVar(self)
self.year.set(2000)
self.year = ttk.Combobox(self, values=list(range(1940, 2006)))
self.year.grid(row=3, column=1, sticky='e')
if __name__ == "__main__":
root = tk.Tk()
MainApplication(root).pack(side="top", fill="both", expand=True)
root.mainloop()
最佳答案
好的，我们开始吧。这些是您的脚本有问题的地方:
- 您正在创建 IntVars，然后基本上说“没关系，改为组合框” *组合框接受 StringVar，但您不需要它们
- 您正在更新方法中创建所有小部件，尽管这很奇怪，但您从未费心调用更新方法，因此它会创建其中任何一个。
- 许多内容都以过于冗长的方式编写
- 您应该调用
grid_rowconfigure和grid_columnconfigure来完成网格配置。 - 唯一需要更新的是选择新月份时可以选择的天数。是否实现闰年取决于您。
我完全重写了你的脚本并改变了一切。我的版本的显示方式可能不完全是您想要的，但现在一切正常，您可以很容易地自定义该部分。
# quick and dirty
from tkinter.ttk import *
from tkinter import *
class Application(Tk):
def __init__(self, *args, **kwargs):
Tk.__init__(self, *args, **kwargs)
# ranges are your friend
d29 = list(range(1,30))
d30 = list(range(1,31))
d31 = list(range(1,32))
#
self.months = dict(
January = d31,
February = d29,
March = d31,
April = d30,
May = d31,
June = d30,
July = d31,
August = d31,
September = d30,
October = d31,
November = d30,
December = d31)
self.lbl_birth = Label(self, text="Birthday:", font=('times', 14))
self.lbl_birth.grid(row=1, column=1)
self.cb_day = Combobox(self, values=self.months["January"])
self.cb_day.grid(row=1, column=2)
self.cb_day.set("1")
self.cb_month = Combobox(self, values=[*self.months])
self.cb_month.bind('<<ComboboxSelected>>', self.update)
self.cb_month.grid(row=1, column=3)
self.cb_month.set("January")
self.cb_year = Combobox(self, values=list(range(1996, 2006)))
self.cb_year.grid(row=1, column=4)
self.cb_year.set("2000")
# configure grid
# this app does not need this configuration BUT you eventually will
# so why not get used to it right now
items = [self.lbl_birth, self.cb_day, self.cb_month, self.cb_year]
for t in items:
self.grid_columnconfigure(t, weight=1)
self.grid_rowconfigure(t, weight=1)
def update(self, event):
# set day values to the appropriate range
self.cb_day["values"] = self.months[self.cb_month.get()]
self.cb_day.set("1")
if __name__ == "__main__":
app = Application()
app.title('My Birthday App')
app.mainloop()
关于python - 组合框不显示在 tkinter 中，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/62615283/