问题描述
from tkinter import *
from tkinter import ttk
import MysqL.connector
from tkinter import messageBox
mydb = MysqL.connector.connect(host="localhost",user="root",passwd="")
mycursor = mydb.cursor()
mycursor.execute("CREATE DATABASE IF NOT EXISTS STUDENT_RECORDS")
mycursor.execute("USE STUDENT_RECORDS")
mycursor.execute("CREATE TABLE IF NOT EXISTS STU (ROLL_NO INT,NAME VARCHAR(255),EMAIL VARCHAR(255),GENDER VARCHAR(255),CONTACT VARCHAR(255),dob VARCHAR(255),ADDRESS VARCHAR(255))")
class Students:
def __init__(self,root):
self.root = root
self.root.title("Student Management System")
self.root.geometry("1350x700+0+0")
color = "blue"
title = Label(self.root,text="Student Management System",bd=10,relief=GROOVE,font=("times new roman",40,"bold"),bg="yellow",fg="red")
title.pack(side=TOP,fill=X)
#=================All Variables
self.Roll_no_var = StringVar()
self.name_var = StringVar()
self.email_var = StringVar()
self.gender_var = StringVar()
self.contact_var = StringVar()
self.dob_var = StringVar()
self.searchby_var = StringVar()
self.searchtxt_var = StringVar()
#=================MANAGE FRAME
self.Manage_Frame = Frame(self.root,bd=4,relief=RIDGE,bg=color)
self.Manage_Frame.place(x=20,y=100,width=450,height=600)
m_title = Label(self.Manage_Frame,text="Manage Students",30,bg=color,fg="white")
m_title.grid(row=0,columnspan=2,pady=20)
lbl_roll = Label(self.Manage_Frame,text="ROLL NO.",20,fg="white")
lbl_roll.grid(row=1,column=0,pady=10,padx=20,sticky="w")
txt_roll = Entry(self.Manage_Frame,textvariable=self.Roll_no_var,15,bd=5,relief=GROOVE)
txt_roll.grid(row=1,column=1,sticky="w")
lbl_name = Label(self.Manage_Frame,text="Name",fg="white")
lbl_name.grid(row=2,sticky="w")
print(type(lbl_name))
txt_name = Entry(self.Manage_Frame,textvariable=self.name_var,relief=GROOVE)
txt_name.grid(row=2,sticky="w")
lbl_Email = Label(self.Manage_Frame,text="Email",fg="white")
lbl_Email.grid(row=3,sticky="w")
txt_Email = Entry(self.Manage_Frame,textvariable=self.email_var,relief=GROOVE)
txt_Email.grid(row=3,sticky="w")
lbl_gender = Label(self.Manage_Frame,text="Gender",fg="white")
lbl_gender.grid(row=4,sticky="w")
combo_gender = ttk.ComboBox(self.Manage_Frame,textvariable=self.gender_var,13,state="readonly")
combo_gender['values']=("Male","Female","Other")
combo_gender.grid(row=4,padx=20)
lbl_contact = Label(self.Manage_Frame,text="Contact",fg="white")
lbl_contact.grid(row=5,sticky="w")
txt_contact = Entry(self.Manage_Frame,textvariable=self.contact_var,relief=GROOVE)
txt_contact.grid(row=5,sticky="w")
lbl_dob = Label(self.Manage_Frame,text="D.O.B",fg="white")
lbl_dob.grid(row=6,sticky="w")
txt_dob = Entry(self.Manage_Frame,textvariable=self.dob_var,relief=GROOVE)
txt_dob.grid(row=6,sticky="w")
lbl_address = Label(self.Manage_Frame,text="Address",fg="white")
lbl_address.grid(row=7,sticky="w")
self.txt_address = Text(self.Manage_Frame,font=("",10,height=4,width=30)
self.txt_address.grid(row=7,sticky="w")
#=================BUTTON FRAME
btn_Frame = Frame(self.Manage_Frame,bg=color)
btn_Frame.place(x=18,y=540,width=420)
add_btn = Button(btn_Frame,text="ADD",width=10).grid(row=0,padx=10,pady=5)
update_btn = Button(btn_Frame,text="UPDATE",pady=5)
delete_btn = Button(btn_Frame,text="DELETE",column=2,pady=5)
clear_btn = Button(btn_Frame,text="CLEAR",column=3,pady=5)
#==================ON OFF BUTTON FRAME
on_off_btn_Frame = Frame(self.root,bg='red')
on_off_btn_Frame.place(x=1305,width=55,height=70)
on_btn = Button(on_off_btn_Frame,text='ON',command=self.on_all).pack(fill=X,side=TOP)
off_btn = Button(on_off_btn_Frame,text='OFF',command=self.off_all).pack(fill=X,side=BottOM)
#=================TABLE FRAME
Table_Frame = Frame(self.root,bg="crimson")
Table_Frame.place(x=500,y=110,width=760,height=500)
scrollx = Scrollbar(Table_Frame,orient=HORIZONTAL)
scrolly = Scrollbar(Table_Frame,orient=VERTICAL)
self.Student_table = ttk.Treeview(Table_Frame,columns=("Roll","Name","Email","Gender","Contact","dob","Address"),xscrollcommand=scrollx.set,yscrollcommand=scrolly.set)
scrollx.pack(side=BottOM,fill=X)
scrolly.pack(side=RIGHT,fill=Y)
scrollx.config(command=self.Student_table.xview)
scrolly.config(command=self.Student_table.yview)
self.Student_table.heading("Roll",text="Roll No.")
self.Student_table.heading("Name",text="Name")
self.Student_table.heading("Email",text="Email")
self.Student_table.heading("Gender",text="Gender")
self.Student_table.heading("Contact",text="Contact")
self.Student_table.heading("dob",text="D.O.B")
self.Student_table.heading("Address",text="Address")
self.Student_table['show']='headings'
self.Student_table.column("Roll",width=100)
self.Student_table.column("Name",width=100)
self.Student_table.column("Email",width=100)
self.Student_table.column("Gender",width=100)
self.Student_table.column("Contact",width=100)
self.Student_table.column("dob",width=100)
self.Student_table.column("Address",width=150)
self.Student_table.pack(fill=BOTH,expand=1)
def on_all(self):
for child in self.Manage_Frame.winfo_children():
child.configure(state='normal')
def off_all(self):
for child in self.Manage_Frame.winfo_children():
child.configure(state='disabled')
root = Tk()
st = Students(root)
root.mainloop()
def on_all(self):
for child in self.Detail_Frame.winfo_children():
child.configure(state='normal')
def off_all(self):
for child in self.Detail_Frame.winfo_children():
child.configure(state='disabled')
错误：
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Users\Manish Gusain\AppData\Local\Programs\Python\python37-32\lib\tkinter\__init__.py",line 1705,in __call__
return self.func(*args)
File "C:/Users/Manish Gusain/PycharmProjects/Student_Management_System.py",line 233,in off_all
child.configure(state='disabled')
File "C:\Users\Manish Gusain\AppData\Local\Programs\Python\python37-32\lib\tkinter\__init__.py",line 1485,in configure
return self._configure('configure',cnf,kw)
File "C:\Users\Manish Gusain\AppData\Local\Programs\Python\python37-32\lib\tkinter\__init__.py",line 1476,in _configure
self.tk.call(_flatten((self._w,cmd)) + self._options(cnf))
_tkinter.TclError: unkNown option "-state"
我想做的是，当我单击“关闭”按钮时，应该禁用框架中的所有小部件；当我单击“开”按钮时，应该再次启用框架中的所有小部件。但是当我单击“关闭”按钮或“打开”按钮时，会显示此错误。
第二，如何在单击“隐藏”按钮时隐藏除tkinter主窗口中的标题以外的所有内容，以及如何在单击“显示”按钮时再次显示所有内容。
解决方法
关于您的两个问题：
-
Frame对象没有
state属性，因此您可以检查小部件是否为框架并跳过更新。您也可以使用try \ except块来捕获错误。以下代码可同时实现这两个功能。 -
要隐藏主框架，只需将其移出屏幕，以使其在窗体上不可见
这是更新的代码。您需要将self添加到Table_Frame引用中，以便可以在on \ off方法中对其进行访问。
self.Table_Frame = Frame(self.root,bd=4,relief=RIDGE,bg="crimson") # chnge to self.Table_Frame
self.Table_Frame.place(x=500,y=110,width=760,height=500)
scrollx = Scrollbar(self.Table_Frame,orient=HORIZONTAL)
scrolly = Scrollbar(self.Table_Frame,orient=VERTICAL)
self.Student_table = ttk.Treeview(self.Table_Frame,columns=("Roll","Name","Email","Gender","Contact","dob","Address"),xscrollcommand=scrollx.set,yscrollcommand=scrolly.set)
.............
def on_all(self):
self.Table_Frame.place(x=500,height=500) # on screen
for child in self.Manage_Frame.winfo_children():
try:
if child.widgetName != 'frame': # frame has no state,so skip
child.configure(state='normal')
except Exception as e:
print(e)
def off_all(self):
self.Table_Frame.place(x=5000,height=500) # off screen
for child in self.Manage_Frame.winfo_children():
try:
if child.widgetName != 'frame': # frame has no state,so skip
child.configure(state='disabled')
except Exception as e:
print(e)
输出（打开）
输出（关闭）
