如何在 tkcalendar 中用空白日期初始化日历?

How to initialise the calendar with blank date in tkcalendar?

我正在尝试创建一个日期选择器。我在网上找到了适合我的代码。但是,使用此代码,程序在启动时默认显示今天的日期,如下所示:

有没有办法像这样将默认日期设置为空白?

我一直在寻找答案,但没有找到答案。

import tkinter as tk

from tkinter import ttk

from tkcalendar import DateEntry

from datetime import date

root = tk.Tk()

style = ttk.Style(root)

style.theme_use('clam')


class MyDateEntry(DateEntry):

    def __init__(self, master=None, **kw):

        DateEntry.__init__(self, master=None, **kw)

        self._top_cal.configure(bg='black', bd=1)


de = MyDateEntry(root,selectbackground='gray80',
                 selectforeground='black',
                 normalbackground='white',
                 normalforeground='black',
                 background='gray90',
                 foreground='black',
                 bordercolor='gray90',
                 othermonthforeground='gray50',
                 othermonthbackground='white',
                 othermonthweforeground='gray50',
                 othermonthwebackground='white',
                 weekendbackground='white',
                 weekendforeground='black',
                 headersbackground='white',
                 headersforeground='gray70')

de.pack()

root.mainloop()

DateEntry 继承自 Entry 小部件。因此,您可以像删除普通 Entry 小部件一样删除内容:

class MyDateEntry(DateEntry):

    def __init__(self, master=None, **kw):

        DateEntry.__init__(self, master=None, **kw)

        self._top_cal.configure(bg='black', bd=1)

        self.delete(0, "end")

我不需要制作class。此解决方案完全可以正常工作:

date_started = DateEntry(root, locale='en_US', date_pattern='yyyy-mm-dd')
date_started.delete(0, "end")  ## Only this line needed to be added to clear the field.
date_started.place(x=150, y=60, height=25, width=120)