[英]How to enable and disable Frame instead of individual widgets in Python Tkinter
我有一个应用程序,单击单选按钮后,必须在当前窗口中启用所有小部件。 起初,当我开始我的申请, 我有两个单选按钮frame1
,我必须禁用所有其他部件(如按钮,输入),它被放置在frame2
,每当我点击radio_button1
它所有的部件应该启用。 在此代码中,当我单击radio_button1
,它将激活所有小部件。 我是否可以开发出更好的方法,以便禁用并启用整个框架,而不是启用和禁用每个单独的小部件? 下面是我当前的代码:
from tkinter import *
from tkinter import simpledialog
class Gui:
def __init__(self, parent, **kw):
self.parent = parent
self.top = Toplevel(self.parent)
self.frame1= Frame(self.top,width= 450,height =550)
self.frame1.grid(row=0)
self.frame2 = Frame(self.top, width=450, height=550)
self.frame2.grid(row=1)
self.radio1=Radiobutton(self.frame1,text='radio_button1',value=1,command=self.enable_window)
self.radio2=Radiobutton(self.frame1,text='radio_button2',value=2)
self.label1 = Label(self.frame2, text='Label1:', width=15, background='white', justify=CENTER,
font='-weight bold')
self.label2 = Label(self.frame2, text='Lable2:', width=15, background='white', justify=CENTER,
font='-weight bold')
self.b=Button(self.frame2,text='save',state=DISABLED)
self.c = Button(self.frame2, text='cancel',state=DISABLED)
self.radio1.grid(row=0,column=0,sticky='W')
self.radio2.grid(row=0,column=1,padx=50,sticky='W')
self.label1.grid(padx=10, pady=5, row=0, column=0, sticky='E')
self.label2.grid(padx=10, pady=5, row=1, column=0, sticky='E')
self.b.grid(row=3,column=0)
self.c.grid(row=3, column=1)
self.entry1_Var = StringVar()
self.entry2_Var = StringVar()
self.entry1 = Entry(self.frame2, width=15, background='white', textvariable=self.entry1_Var,state='disable',
font='-weight bold')
self.entry2 = Entry(self.frame2, width=15, background='white', textvariable=self.entry2_Var,state='disable',
font='-weight bold')
self.entry1.grid(padx=10, pady=5, row=0, column=1, sticky='W')
self.entry2.grid(padx=10, pady=5, row=1, column=1, sticky='W')
self.entry_focus_flag = False
self.top.grab_set()
def enable_window(self):
self.entry1['state'] = 'normal'
self.entry2['state'] = 'normal'
self.b['state'] = NORMAL
self.b['state'] = NORMAL
class main_window:
def __init__(self,root):
self.root=root
button1=Button(self.root,text='Start application',command= lambda p=self.root:self.callback(p))
button1.pack()
def callback(self,p):
Gui(p)
root =Tk()
app = main_window(root)
root.mainloop()
您应该做的是递归地访问框架的所有子项(及其子项等等,如果您(例如我)使用嵌套框架来组织UI),则分别禁用或启用每个子项。
最好的方法是将ttk.Frame子类化以包含所需的功能:
class dFrame(ttk.Frame):
def enable(self, state='!disabled'):
def cstate(widget):
# Is this widget a container?
if widget.winfo_children:
# It's a container, so iterate through its children
for w in widget.winfo_children():
# change its state
w.state((state,))
# and then recurse to process ITS children
cstate(w)
cstate(self)
def disable(self):
self.enable('disabled')
然后将您的框架创建为dFrame的实例:
self.frame1 = dFrame(self.top,width= 450,height =550)
您可以使用:
self.frame1.enable()
和
self.frame1.disable()
启用/禁用框架中的所有小部件。
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