我可以在tkinter中制作一个支票按钮检查所有其他支票按钮吗?

时间:2017-03-03 17:09:07

标签: python python-3.x tkinter widget python-3.4

我有什么方法可以在tkinter中有一个checkbutton,如果选中,还会检查所有其他的checkbutton吗?

示例:

Checkbutton(root, text="A").grid(row=0, column=0, sticky=W)
Checkbutton(root, text="B").grid(row=1, column=0, sticky=W)
Checkbutton(root, text="C").grid(row=2, column=0, sticky=W)
Checkbutton(root, text="ABC").grid(row=3, column=0, sticky=W) 

因此,如果你要检查ABC按钮,那么所有其他按钮也会被检查。有什么方法可以实现我想要的吗?

Python:3.4

操作系统:Windows

4 个答案:

答案 0 :(得分:2)

在创建A,B和C复选框时,将它们保存在列表中;然后,当单击ABC时,您可以遍历列表并全部检查它们:

A = Checkbutton(root, text="A")
B = Checkbutton(root, text="B")
C = Checkbutton(root, text="C")
cbs = [A, B, C]

A.grid(row=0, column=0, sticky=W)
B.grid(row=1, column=0, sticky=W)
C.grid(row=2, column=0, sticky=W)

def checkall():
    for cb in cbs:
        cb.select()

Checkbutton(root, text="ABC", command=checkall).grid(row=3, column=0, sticky=W)

答案 1 :(得分:0)

给出Checkbutton

check = Checkbutton(root, text="Checkbutton",...)
check.grid(row=0, column=0, ...)

使用:check.deselect()

取消选中

或(重新)检查:check.select()

答案 2 :(得分:0)

有关更完整的示例,您可能希望参考以下代码。它演示了一种方法,可以让复选框部分地确定另一个的价值。由于单个和组复选框之间的逻辑略有不同,因此使用了两个不同的事件处理程序。

#! /usr/bin/env python3
from tkinter import *
from tkinter.ttk import *


class Application(Frame):

    @classmethod
    def main(cls):
        # Create a test environment to show how the class works.
        NoDefaultRoot()
        root = Tk()
        root.title('Demonstration')
        root.resizable(False, False)
        root.minsize(250, 100)
        frame = cls(root)
        frame.grid()
        root.mainloop()

    def __init__(self, master=None, **kw):
        super().__init__(master, **kw)
        # Create variables for the checkboxes.
        self.bv_a = BooleanVar(self)
        self.bv_b = BooleanVar(self)
        self.bv_c = BooleanVar(self)
        self.bv_abc = BooleanVar(self)
        self.cb_variables = self.bv_a, self.bv_b, self.bv_c
        # Create each of the desired checkboxes.
        options = dict(
            master=self, command=self.update_any, onvalue=True, offvalue=False
        )
        self.cb_a = Checkbutton(text='A', variable=self.bv_a, **options)
        self.cb_b = Checkbutton(text='B', variable=self.bv_b, **options)
        self.cb_c = Checkbutton(text='C', variable=self.bv_c, **options)
        options.update(command=self.update_all)
        self.cb_abc = Checkbutton(text='ABC', variable=self.bv_abc, **options)
        # Make sure the checkboxes are displayed.
        self.cb_a.grid()
        self.cb_b.grid()
        self.cb_c.grid()
        self.cb_abc.grid()

    def update_any(self):
        # Only check "ABC" if all the other boxes are checked.
        self.bv_abc.set(all(variable.get() for variable in self.cb_variables))

    def update_all(self):
        # Copy the status of "ABC" to all of the other boxes.
        for variable in self.cb_variables:
            variable.set(self.bv_abc.get())


if __name__ == '__main__':
    Application.main()

答案 3 :(得分:0)

将它们全部绑定到同一个变量:

var = IntVar()

Checkbutton(root, text="A", variable=var).grid(row=0, column=0, sticky=W)
Checkbutton(root, text="B", variable=var).grid(row=1, column=0, sticky=W)
Checkbutton(root, text="C", variable=var).grid(row=2, column=0, sticky=W)
Checkbutton(root, text="ABC", variable=var).grid(row=3, column=0, sticky=W) 
相关问题