如何隐藏基于单选按钮选择的 tkinter 小部件？

Question

我正在尝试使用 tkinter 编写 Python 3 代码，以根据输入的数据生成体积计算。

目前，我的代码有效，但我想做的是当通过单选按钮选择矩形棱镜时，让球体的小部件消失，反之亦然，以便只显示相关项目。

我找到了一些想法，但在我当前的设置中实施它们时遇到了困难。如果有人可以提供帮助，我将不胜感激。

代码：

from tkinter import *
from tkinter import messagebox
from volumes import * #basic volume calculations 
import sys

def calculate(): #assigns vars, calls volumes module

    x = option.get()
    if x == 1:
        heightx = heighttxt.get()
        widthx = widthtxt.get()
        lengthx = lengthtxt.get()

        height = float(heightx)
        width = float(widthx)
        length = float(lengthx)

        volume= rp_volume(length, width, height)

        messagebox.showinfo('You selected Rectangular Prism', volume) #displays calculation result

    if x == 2:
        radx = radtxt.get()
        radius = float(radx)
        volume = sp_volume(radius)
        messagebox.showinfo('You selected Sphere', volume) #displays calculation result


window = Tk() #creates window ident

window.title("Volume Calculator")
window.geometry('450x300')

option = IntVar()
option.set(1)

Radiobutton(window, text="Rectangular Prism", variable=option, value=1).grid(column=1, row=1)
Radiobutton(window, text="Sphere", variable=option, value=2).grid(column=2, row=1)


heightlbl = Label(window, text="Enter the height: ", padx=5, pady=5) #creates ident labels

widthlbl = Label(window, text="Enter the width: ", padx=5, pady=5)

lengthlbl = Label(window, text="Enter the length: ", padx=5, pady=5)

radlbl = Label(window, text ="Or enter the radius of a sphere: ", padx=5, pady=5)


heighttxt = Entry(window,width=10) #creates entry boxes

widthtxt = Entry(window,width=10)

lengthtxt = Entry(window,width=10)

radtxt = Entry(window, width=10)


calcbtn = Button(window, text="Calculate the volume", command=calculate, padx=5, pady=5) #hey it's a button that calls the calculate function!

quitbtn = Button(window, text="Quit", command=window.destroy) #quit button does what it says on the tin


heightlbl.grid(column=1, row=3) #assigns grid positions (preferred to pack for precise layout)
widthlbl.grid(column=1, row=4)
lengthlbl.grid(column=1, row=5)
radlbl.grid(column=1, row=6)
heighttxt.grid(column=2, row=3)
widthtxt.grid(column=2, row=4)
lengthtxt.grid(column=2, row=5)
radtxt.grid(column=2, row=6)
calcbtn.grid(column=2, row=7)
quitbtn.grid(column=2, row=8)



window.mainloop() #closes window mainloop

Answer 1

要实现这一点，您可以将矩形棱镜和球体所需的小部件放在不同的框架中，并向单选按钮添加一个命令参数，选择时将显示相应的框架和grid_forget 另一个。这是代码。 （请注意，我对这个 volumes 模块一无所知，所以你相应地更改它）

from tkinter import *
from tkinter import messagebox

def calculate(): #assigns vars, calls volumes module
    x = option.get()
    if x == 1:
        heightx = heighttxt.get()
        widthx = widthtxt.get()
        lengthx = lengthtxt.get()

        height = float(heightx)
        width = float(widthx)
        length = float(lengthx)

        volume = length*width*height

        messagebox.showinfo('You selected Rectangular Prism', volume) #displays calculation result

    if x == 2:
        radx = radtxt.get()
        radius = float(radx)
        volume = 4/3*3.14*radius**3
        messagebox.showinfo('You selected Sphere', volume) #displays calculation result

def recprism():
    sphere_frame.grid_forget()
    rec_frame.grid(row=1, column=0)

def sphere():
    rec_frame.grid_forget()
    sphere_frame.grid(row=1, column=0)

window = Tk() #creates window ident

window.title("Volume Calculator")
window.geometry('450x300')

option = IntVar()

Radiobutton(window, text="Rectangular Prism", variable=option, value=1, command=recprism).grid(column=0, row=0)
Radiobutton(window, text="Sphere", variable=option, value=2, command=sphere).grid(column=1, row=0)

rec_frame = Frame(window)
sphere_frame = Frame(window)

heightlbl = Label(rec_frame, text="Enter the height: ", padx=5, pady=5) #creates ident labels
widthlbl = Label(rec_frame, text="Enter the width: ", padx=5, pady=5)
lengthlbl = Label(rec_frame, text="Enter the length: ", padx=5, pady=5)

radlbl = Label(sphere_frame, text ="Enter the radius of a sphere: ", padx=5, pady=5)

heighttxt = Entry(rec_frame, width=10) #creates entry boxes
widthtxt = Entry(rec_frame, width=10)
lengthtxt = Entry(rec_frame, width=10)

radtxt = Entry(sphere_frame, width=10)

calcbtn = Button(window, text="Calculate the volume", command=calculate, padx=5, pady=5) #hey it's a button that calls the calculate function!
quitbtn = Button(window, text="Quit", command=window.destroy) #quit button does what it says on the tin


heightlbl.grid(column=0, row=0) #assigns grid positions (preferred to pack for precise layout)
widthlbl.grid(column=0, row=1)
lengthlbl.grid(column=0, row=2)
radlbl.grid(column=0, row=0)
heighttxt.grid(column=1, row=0)
widthtxt.grid(column=1, row=1)
lengthtxt.grid(column=1, row=2)
radtxt.grid(column=1, row=0)

calcbtn.grid(column=1, row=1)
quitbtn.grid(column=1, row=2)

window.mainloop()