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社区首页 >问答首页 >如何验证入口Widget？Python

问如何验证入口Widget？Python
EN

Stack Overflow用户
提问于 2022-09-05 00:07:21
回答 1查看 69关注 0票数 1

我是Python新手，我想实现一个简单的员工管理系统(如附图所示)，它可以完成以下功能

·输入、查看和导出员工数据的GUI。(已完成)

*将数据导出到Excel或csv文件中的能力。(尚未完成)

·将Excel或csv文件中的所有数据导入GUI的能力。

下面是GUI的一个示例

​

​

这是CSV文件

代码语言：javascript
运行
复制
    Fullname            Age Gender  Position              Phone Number  Address
    Ali Talib           59  Male    Vice-Chancellor       1752555555    UK-London
    Afaf Neamah         23  Female  Manager               7912394404    UK-Plymouth
    Hussein Neamah      22  Male    Head of Department    7335952523    UK-London
    Estabraq Aldalboos  33  Female  Engineer              7575252324    UK-Plymouth
    Nathan Clarke       45  Male    Deputy Head of School 7916682090    UK-London
    Neamah AL-Naffakh   37  Male    Lecturer              7817792202    UK-Plymouth

我需要开发代码来执行以下

·验证条目Widget (即接受每个文本框的有效输入)。例如，只接受年龄号码，移动电话号码和签证号码(即，不接受姓名、性别、位置的号码)-显示用于无效输入的消息框

这里是代码

代码语言：javascript
运行
复制
    import csv
from tkinter import *
from tkinter import messagebox

def load_data(path):      # Load data from csv file at program start.
    reader = csv.reader(open(path))
    return list(reader)[1:]

window=Tk()
window.geometry("800x500+0+0")
window.title("Employee Management System")
window.maxsize(width=800,height=500)
window.minsize(width=800,height=500)
FILEPATH = '/Users/nhal-naffakh/Desktop/Desktop/Sec-Interview/Data.csv'

main_lst = load_data(FILEPATH)  # Load csv data into `main_lst`


def view():
  index = listbox1.curselection()[0]
  NameLabel2.config(text=main_lst[index][0])
  AgeLabel2.config(text=main_lst[index][1])
  GenderLabel2.config(text=main_lst[index][2])
  PositionLabel2.config(text=main_lst[index][3])
  AddressLabel2.config(text=main_lst[index][4])

def OpenFile():
    pass

def Add():
   name = Nametxt.get()  # get the name of new entry
   lst = [name, Agetxt.get(), Gendertxt.get(), Positiontxt.get(), Numbertxt.get(), Addresstxt.get()]
   main_lst.append(lst)
   listbox1.insert(len(List_of_Name), name)  # add it to the listbox list
   List_of_Name.append(name)  # store it in the list of names
   messagebox.showinfo("Information","The data has been added successfully")

def Save():
   with open(FILEPATH,"w") as file:
      writer = csv.writer(file, lineterminator='\n')
      writer.writerow(["Fullname","Age","Gender","Position","Phone Number","Address"])
      writer.writerows(main_lst)  #  now when it writes to file it will contain all the data.
      messagebox.showinfo("Information","Saved succesfully")

def Clear():
   Nametxt.delete(0,END)
   Agetxt.delete(0,END)
   Gendertxt.delete(0,END)
   Positiontxt.delete(0,END)
   Numbertxt.delete(0,END)
   Addresstxt.delete(0,END)

def Exit():
    wayOut = messagebox.askyesno("Employee Management System", "Do you want to exit the system")
    if wayOut > 0:
        Save()  # Added a call to save upon exiting.
        window.destroy()
        return

List_of_Name=[]
for x in list(range(0,len(main_lst))):
    List_of_Name.append(main_lst[x][0])

var = StringVar(value=List_of_Name)
listbox1 = Listbox(window, listvariable=var)
listbox1.grid(row=3,column=0)

buttonView = Button(text="ViewRecord", padx=10, pady=4, bd=4,
                    font=('ariel',12,'bold'), width=8, fg='black',
                    bg="dark gray", command=view).grid(row=3,column=1)
NameLabel = Label(window,text="FullName").grid(row=5,column=0,sticky="w")
AgeLabel=Label(window,text="Age").grid(row=6,column=0,sticky="w")
GenderLabel=Label(window,text="Gender").grid(row=7,column=0,sticky="w")
PositionLabel=Label(window,text="Position").grid(row=8,column=0,sticky="w")
AddressLabel=Label(window,text="Address").grid(row=9,column=0,sticky="w")
NameLabel2=Label(window,text="")
NameLabel2.grid(row=5,column=1,sticky="w")
AgeLabel2=Label(window,text="")
AgeLabel2.grid(row=6,column=1,sticky="w")
GenderLabel2=Label(window,text="")
GenderLabel2.grid(row=7,column=1,sticky="w")
PositionLabel2=Label(window,text="")
PositionLabel2.grid(row=8,column=1,sticky="w")
AddressLabel2=Label(window,text="")
AddressLabel2.grid(row=9,column=1,sticky="w")
Namelabel3=Label(window,text="Full Name",
                    font=('arial',12,'bold'),bd=3,fg="white",
                    bg="dark blue",).grid(row=0,column=0,sticky="w")
Nametxt = Entry(window,font=('ariel',12),bd=4,width=22, justify='left')
Nametxt.grid(row=0,column=1)

Agelabel3=Label(window,text="Age",font=("ariel",12,'bold'),bd=3,fg='white',
                bg="dark blue",).grid(row=0,column=2)
Agetxt=Entry(window,font=('ariel',12),bd=4, justify='left')
Agetxt.grid(row=0,column=3)

GenderLabel3=Label(window,text="Gender",font=('ariel',12,'bold'),bd=3,fg='white',
                bg="dark blue").grid(row=1,column=0,sticky="w")
Gendertxt=Entry(window,font=('ariel',12),bd=4, justify='left')
Gendertxt.grid(row=1,column=1)

PositionLabel3=Label(window,text="Position",font=('ariel',12,'bold'),bd=3,fg='white',
                bg="dark blue").grid(row=1,column=2,sticky="w")
Positiontxt=Entry(window,font=('ariel',12),bd=4, justify='left')
Positiontxt.grid(row=1,column=3)

NumberLabel3=Label(window,text="Mob Number",font=('ariel',12,'bold'),bd=3,fg='white',
                bg="dark blue").grid(row=2,column=0,sticky="w")
Numbertxt=Entry(window,font=('ariel',12),bd=4, justify='left')
Numbertxt.grid(row=2,column=1)

AddressLabel3=Label(window,text="Address",font=('ariel',12,'bold'),bd=3,fg='white',
                bg="dark blue").grid(row=2,column=2,sticky="w")
Addresstxt=Entry(window,font=('ariel',12),bd=4, justify='left')
Addresstxt.grid(row=2,column=3)

#  Button
LoadButton=Button(text="Load File", padx=10, pady=4, bd=4, font=('ariel',12,'bold'),
                    width=8,fg='black',bg="dark gray", command=OpenFile).grid(row=3,column=2)
AddButton=Button(text="Add Record", padx=10, pady=4, bd=4, font=('ariel',12,'bold'),
                    width=8,fg='black',bg="dark gray",command=Add).grid(row=3,column=3)
SaveButton=Button(text="Save", padx=10, pady=4, bd=4, font=('ariel',12,'bold'),
                    width=8,fg='black',bg="dark gray",command=Save).grid(row=4,column=1)
ClearButton=Button(text="Clear", padx=10, pady=4, bd=4, font=('ariel',12,'bold'),
                    width=8,fg='black',bg="dark gray",command=Clear).grid(row=4,column=2)
ExitButton=Button(text="Exit", padx=10, pady=4, bd=4, font=('ariel',12,'bold'),
                    width=8,fg='black', bg="dark gray",command=Exit).grid(row=4,column=3)

window.mainloop()
user-interface
tkinter
textbox
widget
validation
EN

回答 1

Stack Overflow用户

回答已采纳

发布于 2022-09-05 03:42:56

为了验证数据，您可以使用Add Record按钮回调设置一个文本验证函数，这样当用户单击add记录时，它首先检查每个条目字段，以确保满足某些条件。

例如，我添加了一个validate_text函数，当单击added按钮时，将在每个条目小部件文本上调用该函数。它首先确保条目没有留空，然后只检查年龄和数字字段中的数字，然后检查其余部分，以确保文本中没有数字。如果其中任何条件为真，则会显示一个错误消息框，并且不会向main_lst或csv文件添加任何记录。否则，它会将记录添加到main_lst和gui中。

代码语言：javascript
运行
复制
import csv
from tkinter import *
from tkinter import messagebox

def load_data(path):      # Load data from csv file at program start.
    reader = csv.reader(open(path))
    return list(reader)[1:]

window=Tk()
window.geometry("800x500+0+0")
window.title("Employee Management System")
window.maxsize(width=800,height=500)
window.minsize(width=800,height=500)
FILEPATH = 'data.csv'

main_lst = load_data(FILEPATH)  # Load csv data into `main_lst`


def view():
  index = listbox1.curselection()[0]
  NameLabel2.config(text=main_lst[index][0])
  AgeLabel2.config(text=main_lst[index][1])
  GenderLabel2.config(text=main_lst[index][2])
  PositionLabel2.config(text=main_lst[index][3])
  AddressLabel2.config(text=main_lst[index][4])

def OpenFile():
    pass


def validate_text(field, text):
    if not text:
        messagebox.showinfo("Invalid Entry","Values cannot be left blank.")
        return False
    elif field in ["number", "age"]:
        if not text.isnumeric():
            messagebox.showinfo("Invalid Entry", f"{field.title()} must be numeric.")
            return False
    elif not all([not i.isdigit() for i in text]):
        messagebox.showinfo("Invalid Entry", f"Numbers not permitted in {field.title()} field.")
        return False
    return True

def Add():
    entries = {"name": Nametxt, "age": Agetxt, "gender": Gendertxt, "position": Positiontxt, "number": Numbertxt,"address": Addresstxt}
    values = []
    for key, val in entries.items():
        text = val.get()
        if not validate_text(key, text):
            return
        values.append(text)
    main_lst.append(values)
    listbox1.insert(len(List_of_Name), values[0])  # add it to the listbox list
    List_of_Name.append(values[0])  # store it in the list of names
    messagebox.showinfo("Information","The data has been added successfully")

def Save():
   with open(FILEPATH,"w") as file:
      writer = csv.writer(file, lineterminator='\n')
      writer.writerow(["Fullname","Age","Gender","Position","Phone Number","Address"])
      writer.writerows(main_lst)  #  now when it writes to file it will contain all the data.
      messagebox.showinfo("Information","Saved succesfully")

def Clear():
   Nametxt.delete(0,END)
   Agetxt.delete(0,END)
   Gendertxt.delete(0,END)
   Positiontxt.delete(0,END)
   Numbertxt.delete(0,END)
   Addresstxt.delete(0,END)

def Exit():
    wayOut = messagebox.askyesno("Employee Management System", "Do you want to exit the system")
    if wayOut > 0:
        Save()  # Added a call to save upon exiting.
        window.destroy()
        return

List_of_Name=[]
for x in list(range(0,len(main_lst))):
    List_of_Name.append(main_lst[x][0])

var = StringVar(value=List_of_Name)
listbox1 = Listbox(window, listvariable=var)
listbox1.grid(row=3,column=0)

buttonView = Button(text="ViewRecord", padx=10, pady=4, bd=4,
                    font=('ariel',12,'bold'), width=8, fg='black',
                    bg="dark gray", command=view).grid(row=3,column=1)
NameLabel = Label(window,text="FullName").grid(row=5,column=0,sticky="w")
AgeLabel=Label(window,text="Age").grid(row=6,column=0,sticky="w")
GenderLabel=Label(window,text="Gender").grid(row=7,column=0,sticky="w")
PositionLabel=Label(window,text="Position").grid(row=8,column=0,sticky="w")
AddressLabel=Label(window,text="Address").grid(row=9,column=0,sticky="w")
NameLabel2=Label(window,text="")
NameLabel2.grid(row=5,column=1,sticky="w")
AgeLabel2=Label(window,text="")
AgeLabel2.grid(row=6,column=1,sticky="w")
GenderLabel2=Label(window,text="")
GenderLabel2.grid(row=7,column=1,sticky="w")
PositionLabel2=Label(window,text="")
PositionLabel2.grid(row=8,column=1,sticky="w")
AddressLabel2=Label(window,text="")
AddressLabel2.grid(row=9,column=1,sticky="w")
Namelabel3=Label(window,text="Full Name",
                    font=('arial',12,'bold'),bd=3,fg="white",
                    bg="dark blue",).grid(row=0,column=0,sticky="w")
Nametxt = Entry(window,font=('ariel',12),bd=4,width=22, justify='left')
Nametxt.grid(row=0,column=1)

Agelabel3=Label(window,text="Age",font=("ariel",12,'bold'),bd=3,fg='white',
                bg="dark blue",).grid(row=0,column=2)
Agetxt=Entry(window,font=('ariel',12),bd=4, justify='left')
Agetxt.grid(row=0,column=3)

GenderLabel3=Label(window,text="Gender",font=('ariel',12,'bold'),bd=3,fg='white',
                bg="dark blue").grid(row=1,column=0,sticky="w")
Gendertxt=Entry(window,font=('ariel',12),bd=4, justify='left')
Gendertxt.grid(row=1,column=1)

PositionLabel3=Label(window,text="Position",font=('ariel',12,'bold'),bd=3,fg='white',
                bg="dark blue").grid(row=1,column=2,sticky="w")
Positiontxt=Entry(window,font=('ariel',12),bd=4, justify='left')
Positiontxt.grid(row=1,column=3)

NumberLabel3=Label(window,text="Mob Number",font=('ariel',12,'bold'),bd=3,fg='white',
                bg="dark blue").grid(row=2,column=0,sticky="w")
Numbertxt=Entry(window,font=('ariel',12),bd=4, justify='left')
Numbertxt.grid(row=2,column=1)

AddressLabel3=Label(window,text="Address",font=('ariel',12,'bold'),bd=3,fg='white',
                bg="dark blue").grid(row=2,column=2,sticky="w")
Addresstxt=Entry(window,font=('ariel',12),bd=4, justify='left')
Addresstxt.grid(row=2,column=3)

#  Button
LoadButton=Button(text="Load File", padx=10, pady=4, bd=4, font=('ariel',12,'bold'),
                    width=8,fg='black',bg="dark gray", command=OpenFile).grid(row=3,column=2)
AddButton=Button(text="Add Record", padx=10, pady=4, bd=4, font=('ariel',12,'bold'),
                    width=8,fg='black',bg="dark gray",command=Add).grid(row=3,column=3)
SaveButton=Button(text="Save", padx=10, pady=4, bd=4, font=('ariel',12,'bold'),
                    width=8,fg='black',bg="dark gray",command=Save).grid(row=4,column=1)
ClearButton=Button(text="Clear", padx=10, pady=4, bd=4, font=('ariel',12,'bold'),
                    width=8,fg='black',bg="dark gray",command=Clear).grid(row=4,column=2)
ExitButton=Button(text="Exit", padx=10, pady=4, bd=4, font=('ariel',12,'bold'),
                    width=8,fg='black', bg="dark gray",command=Exit).grid(row=4,column=3)

window.mainloop()
票数 1
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/73603559

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