我目前正在从事一个有关金融应用程序计算工资单的小项目。我在pyCharm中使用tkinter小部件成功创建了多个页面。在成功设计了几个主要页面并且使代码能够运行和执行之后，我遇到了一个问题，即我的页面或框架是静态的，并且不刷新。 案例示例：我将单击“添加员工”，这将打开添加框架，并填写三个输入页面。提交后，我的数据库将使用插入进行更新，程序将检查该Employee是否存在，并相应地执行该函数。但是，显示数据库中所有雇员的我的主页列表框在返回到框架时不会与新雇员一起更新。我一直在网上寻找，似乎无法找到解决此问题的方法，因为到目前为止update（）不适用于我，除非我绝对错误地使用它。
我真的可以使用一些帮助，并希望在此方面获得一些指导。
我如何刷新我的主页以及该页面上的任何页面，因为输入框中的输入似乎也不会偏离注册框（当我再次导航回它们时）
import tkinter
import tkinter as tk # python 3
from tkinter import font as tkfont, Entry, END # python 3
# import Tkinter as tk # python 2
# import tkFont as tkfont # python 2
from tkinter import messagebox
import Employee
import pymysql.cursors
from pymysql.connections import Connection
class GUI(tk.Tk):
def __init__(self, *args):
tk.Tk.__init__(self, *args)
self.shared_data = {
"first_name": tk.StringVar(),
"last_name": tk.StringVar(),
"age": tk.StringVar(),
"address": tk.StringVar(),
"day_of_birth": tk.StringVar(),
"month_of_birth": tk.StringVar(),
"year_of_birth": tk.StringVar(),
"health_care": tk.StringVar(),
"health_care_id": tk.StringVar(),
"employee_id": tk.StringVar(),
"married": tk.StringVar(),
"hInsurance": tk.StringVar(),
"dInsurance": tk.StringVar(),
"oInsurance": tk.StringVar(),
"hTier": tk.StringVar(),
"four01k": tk.StringVar(),
"kContribution": tk.StringVar(),
"pension": tk.StringVar(),
"unionDues": tk.StringVar(),
"payType": tk.StringVar(),
"payAmount": tk.StringVar(),
}
tk.Tk.wm_title(self, "Payroll Application")
#Creation of all the relevant Frames
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(200, weight=1)
container.grid_columnconfigure(200, weight=1)
self.frames = {}
for F in (LoginPage, mainMenuPage, addEmpFrame, addEmpFrame1, addEmpFrame2, removeEmpFrame, EmpLookupFrame,
calcPayRollFrame):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.raise_frame(LoginPage)
#Frame manipulation functions
def raise_frame(self, page_name):
frame = self.frames[page_name]
frame.tkraise()
def update_frame(self, page_name):
frame = self.frames[page_name]
frame.update()
def destroy_frame(self, page_name):
frame = self.frames[page_name]
frame.destroy()
#Frame Designs
#Each frame written in a class format
class LoginPage(tk.Frame): #Login page Frame
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.label_username = tk.Label(self, text="Username")
self.label_password = tk.Label(self, text="Password")
self.entry_username = tk.Entry(self)
self.entry_password = tk.Entry(self, show="*")
self.label_username.grid(row=0, column=0)
self.label_password.grid(row=1, column=0)
self.entry_username.grid(row=0, column=1)
self.entry_password.grid(row=1, column=1)
self.checkbox = tk.Checkbutton(self, text="Keep me logged in")
self.checkbox.grid(columnspan=2)
self.loginButton = tk.Button(self, text="Login", command=lambda: controller.raise_frame(self.submitLogin()))
self.loginButton.grid(columnspan=2)
def submitLogin(self):
l = self.entry_username.get()
p = self.entry_password.get()
attempt = Employee.Login(l, p)
attempt.databaseSearchId(attempt.get_temp_id())
if (attempt.check_login() == 1):
return mainMenuPage
elif (attempt.check_login() == 0):
return LoginPage
class mainMenuPage(tk.Frame): #Main Menu Frame, consists of the main navigation page, List box
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
self.row = []
self.scrollbar = tk.Scrollbar(self)
self.scrollbar.grid(row = 2, column= 2)
connection: Connection = pymysql.connect(host='localhost',
port=3306,
user='root',
password='root',
db='hrdb')
cursorObject = connection.cursor()
cursorObject.execute('SELECT `firstName`,`lastName` from `employeeprofile`')
numrows = int(cursorObject.rowcount)
for x in range(0, numrows):
self.row.append(cursorObject.fetchone())
self.list1 = tk.Listbox(self, height=10, width=35)
for x in self.row:
self.list1.insert(END, x)
self.list1.grid(row=2, column=0, columnspan=2)
self.scrollbar.config(command=self.list1.yview)
self.label = tk.Label(self, text="Search employee by typing his/her last name:")
self.label.grid(row=0, column=1)
self.entry_username = tk.Entry(self)
self.entry_username.grid(row=0, column=3)
button = tk.Button(self, text='Add Employee', width=15,
command=lambda: controller.raise_frame(addEmpFrame))
button.grid(row=2, column=3)
button = tk.Button(self, text='Remove Employee', width=15, command=lambda: controller.raise_frame(removeEmpFrame))
button.grid(row=3, column=3)
button = tk.Button(self, text='Employee Lookup', width=15, command=lambda: controller.raise_frame(EmpLookupFrame))
button.grid(row=4, column=3)
button = tk.Button(self, text='Calculate Pay Roll', width=15, command=lambda: controller.raise_frame(calcPayRollFrame))
button.grid(row=5, column=3)
class addEmpFrame(tk.Frame): #One of the three registration Frames, Button NEXT moves to the next registration page
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
empInfoLabel = tk.Label(self, text='Please enter Personal information.')
empInfoLabel.grid(row=0, column=1)
labelFirstName = tk.Label(self, text="Employee First Name")
labelFirstName.grid(row=1, column=0)
labelLastName = tk.Label(self, text="Employee Last Name")
labelLastName.grid(row=2, column=0)
labelAge = tk.Label(self, text="Employee Age")
labelAge.grid(row=3, column=0)
labelAddress = tk.Label(self, text="Employee full address?(street, city, state, zip")
labelAddress.grid(row=4, column=0)
labelDOB = tk.Label(self, text="Employee day of birth")
labelDOB.grid(row=5, column=0)
labelMOB = tk.Label(self, text="Employee month of birth")
labelMOB.grid(row=6, column=0)
labelYOB = tk.Label(self, text="Employee year of birth")
labelYOB.grid(row=7, column=0)
labelHealthCare = tk.Label(self, text="Health Care (yes or no)")
labelHealthCare.grid(row=8, column=0)
labelHealthCareID = tk.Label(self, text="Employee health care id")
labelHealthCareID.grid(row=9, column=0)
labelEmployeeID = tk.Label(self, text="Employee id")
labelEmployeeID.grid(row=10, column=0)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["first_name"])
userEntry.grid(row=1, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["last_name"])
userEntry.grid(row=2, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["age"])
userEntry.grid(row=3, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["address"])
userEntry.grid(row=4, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["day_of_birth"])
userEntry.grid(row=5, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["month_of_birth"])
userEntry.grid(row=6, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["year_of_birth"])
userEntry.grid(row=7, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["health_care"])
userEntry.grid(row=8, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["health_care_id"])
userEntry.grid(row=9, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["employee_id"])
userEntry.grid(row=10, column=1)
nextButton = tk.Button(self, text='Next', command=lambda: controller.raise_frame(addEmpFrame1))
nextButton.grid(row=12, column=1)
retButton = tk.Button(self, text='Main Menu', command=lambda: controller.raise_frame(mainMenuPage))
retButton.grid(row=12, column=0)
class addEmpFrame1(tk.Frame): #second registration page, button NEXT moves to the next registration page
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
empInfo2Label = tk.Label(self, text='Please enter Insurance information.')
empInfo2Label.grid(row=0, column=1)
labelMarried = tk.Label(self, text="Married? (yes or no)")
labelMarried.grid(row=1, column=0)
labelhInsurance = tk.Label(self, text="Health Care Insurance company")
labelhInsurance.grid(row=2, column=0)
labeldInsurance = tk.Label(self, text="Dental Care Insurance company")
labeldInsurance.grid(row=3, column=0)
labeloInsurance = tk.Label(self, text="Optical Care Insurance company")
labeloInsurance.grid(row=4, column=0)
labelhTier = tk.Label(self, text="hTier")
labelhTier.grid(row=5, column=0)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["married"])
userEntry.grid(row=1, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["hInsurance"])
userEntry.grid(row=2, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["dInsurance"])
userEntry.grid(row=3, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["oInsurance"])
userEntry.grid(row=4, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["hTier"])
userEntry.grid(row=5, column=1)
nextButton = tk.Button(self, text='Next', command=lambda: controller.raise_frame(addEmpFrame2))
nextButton.grid(row=7, column=1)
retButton = tk.Button(self, text='Main Menu', command=lambda: controller.raise_frame(mainMenuPage))
retButton.grid(row=7, column=0)
class addEmpFrame2(tk.Frame): #Final registration page, SUBMIT checks if exists in db, if not, Inserts
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
empInfo3Label = tk.Label(self, text='Please enter Financial information.')
empInfo3Label.grid(row=0, column=1)
label401k = tk.Label(self, text="401k (yes or no)")
label401k.grid(row=1, column=0)
labelkContribution = tk.Label(self, text="kContribution")
labelkContribution.grid(row=2, column=0)
labelPension = tk.Label(self, text="Pension (yes or no)")
labelPension.grid(row=3, column=0)
labelUnionDues = tk.Label(self, text="Union dues (yes or no)")
labelUnionDues.grid(row=4, column=0)
labelPayType = tk.Label(self, text="Pay type")
labelPayType.grid(row=5, column=0)
labelPayAmount = tk.Label(self, text="Pay amount")
labelPayAmount.grid(row=6, column=0)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["four01k"])
userEntry.grid(row=1, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["kContribution"])
userEntry.grid(row=2, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["pension"])
userEntry.grid(row=3, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["unionDues"])
userEntry.grid(row=4, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["payType"])
userEntry.grid(row=5, column=1)
userEntry = tk.Entry(self, textvariable=self.controller.shared_data["payAmount"])
userEntry.grid(row=6, column=1)
submitButton = tk.Button(self, text='Submit', command=lambda: self.addEmployee(controller))
submitButton.grid(row=8, column=1)
retButton = tk.Button(self, text='Main Menu', command=lambda: controller.raise_frame(mainMenuPage))
retButton.grid(row=8, column=0)
def addEmployee(self, controller): #Checking and inserting function
temp_stat = 0
firstName = self.controller.shared_data["first_name"].get()
lastName = self.controller.shared_data["last_name"].get()
aGe = self.controller.shared_data["age"].get()
addRess = self.controller.shared_data["address"].get()
DOB = self.controller.shared_data["day_of_birth"].get()
MOB = self.controller.shared_data["month_of_birth"].get()
YOB = self.controller.shared_data["year_of_birth"].get()
healthCare = self.controller.shared_data["health_care"].get()
healthCareID = self.controller.shared_data["health_care_id"].get()
employeeID = self.controller.shared_data["employee_id"].get()
marry = self.controller.shared_data["married"].get()
healthIns = self.controller.shared_data["hInsurance"].get()
dentalIns = self.controller.shared_data["dInsurance"].get()
opticalIns = self.controller.shared_data["oInsurance"].get()
healthTier = self.controller.shared_data["hTier"].get()
Four1k = self.controller.shared_data["four01k"].get()
keyContribution = self.controller.shared_data["kContribution"].get()
penSion = self.controller.shared_data["pension"].get()
unionDues = self.controller.shared_data["unionDues"].get()
payType = self.controller.shared_data["payType"].get()
payAmount = self.controller.shared_data["payAmount"].get()
attempt = Employee.Register(firstName, lastName, aGe, addRess, DOB, MOB, YOB,
healthCare, healthCareID, employeeID, marry, healthIns,
dentalIns, opticalIns, healthTier, Four1k, keyContribution,
penSion, unionDues, payType, payAmount)
temp_stat = attempt.databaseInsert()
if(temp_stat == 1):
messagebox.showinfo("Status", "Successfully Added")
controller.raise_frame(mainMenuPage)
controller.update_frame(mainMenuPage)
elif(temp_stat == 0):
messagebox.showinfo("Status", "User Already Exists")
controller.raise_frame(addEmpFrame)
class removeEmpFrame(tk.Frame): #Under construction
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
retButton = tk.Button(self, text='Main Menu', command=lambda: controller.raise_frame(mainMenuPage))
retButton.grid(row=12, column=0)
class EmpLookupFrame(tk.Frame): #Under Construction
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
retButton = tk.Button(self, text='Main Menu', command=lambda: controller.raise_frame(mainMenuPage))
retButton.grid(row=12, column=0)
class calcPayRollFrame(tk.Frame): #Under construction
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
retButton = tk.Button(self, text='Main Menu', command=lambda: controller.raise_frame(mainMenuPage))
retButton.grid(row=12, column=0)
if __name__ == "__main__":
gui = GUI()
gui.mainloop()
编辑：我知道批量代码很长的读取时间，但是我真的没有这个问题的具体位置，相反，如果您看一下任何Frame的任何类，逻辑上我会缺少什么获取使用时更新/刷新的框架。预先谢谢你
答案 0 :(得分：0)
每次单击“添加新员工”按钮时，您都需要清除字典值。
一种方法是在GUI类中添加一个方法，该方法具有for循环，可将所有值设置为空字符串。
然后，您只需在将框架添加到lambda语句中来提升框架之前，就只需调用该方法即可。
因此，将此方法添加到GUI类。
def clear_shared_data(self):
for key, value in self.shared_data.items():
print(value.get())
value.set("")
然后编辑您的'Add Employee'按钮以执行以下命令。
command=lambda: (controller.clear_shared_data(), controller.raise_frame(addEmpFrame))
这将在抬高框之前清除字典中的值。