使用tikinter在Python中创建输入表并保存更改

Question

我想用tkinter在Python中创建输入表。输入表具有可以更改的初始值。当输入已被编辑时，我想保存更改。我使用TinyDB作为数据库来存储输入值。

有人可以展示一个简单的例子，如何做到这一点？

Answer 1

虽然我与布赖恩同意在这一个，存储与tkinter多个输入的一个简单的例子可以在下面找到：

from tkinter import * 

root = Tk() 

entry = [] 

def command(entry): 
    output = [] 
    for i in range(len(entry)): 
     output.append(entry[i].get()) 
    print(output) 

for i in range(10): 
    entry.append(Entry(root)) 
    entry[i].pack() 

Button(root, text="Ok", command=lambda:command(entry)).pack() 

root.mainloop() 

这产生10个entry元素，并使用由button触发的命令来存储所有他们在list。

Answer 2

我看到我得到了很多关键的反应，因为没有显示我的初始代码。我想我在输入这个简单的例子时找到了解决方案，它似乎工作正常。尽管如此，必须使其面向对象。

from tkinter import * 
from tinydb import TinyDB, Query 

# Name on database with stored parameter values (confined and free parameters) 

param_db_name = 'db5.json' 
db2 = TinyDB(param_db_name) 

# Get field name and values for free parameters in Model1: 

model_name = 'Model1' 
felt = Query() 
fields = (db2.search(felt.Model_name == model_name)[0]['free_par']).keys() 
fields_val = (db2.search(felt.Model_name == model_name)[0]['free_par']).values() 
#print('Fields_val: ',fields_val) 

def save_params(entries, fields): 
    res_dict = {} 
    for field in fields: 
     res_dict[field] = float(entries[field].get()) 
    print('Res dict:', res_dict) 
    felt = Query() 
    db2.update({'free_par': res_dict}, felt.Model_name == model_name) 

def makeform(root, fields,ff): 
    entries = {} 
    i = 0 
    for field in fields: 
     row = Frame(root) 
     lab = Label(row, width=32, text=field+": ", anchor='w') 
     ent = Entry(row) 
     ent.insert(0, [ff[i]]) 
     row.pack(side=TOP, fill=X, padx=5, pady=5) 
     lab.pack(side=LEFT) 
     ent.pack(side=RIGHT, expand=YES, fill=X) 
     entries[field] = ent 
     i=i+1 
    return entries 

if __name__ == '__main__': 
    root = Tk() 
    root.wm_title("Model parameters") 
    ents = makeform(root, fields, list(fields_val)) 
    b1 = Button(root, text='Lagre',command=lambda: save_params(ents,fields)) 
    b1.pack(side=LEFT, padx=5, pady=5) 
    b2 = Button(root, text='Avslutt', command=root.quit) 
    b2.pack(side=RIGHT, padx=5, pady=5) 
    root.mainloop() 

DB2数据库包含两项：

[{'Model_name': 'Model1','con_par': {'CPar1': 1, 'CPar2': 2, 'CPar3': 3.0},'free_par': {'FPar1': 0.589, 'FPar2': 1.44, 'FPar3': 3.0, 'FPar4': 2.427}}, 
{'Model_name': 'Model2','con_par': {'CPar1': 11, 'CPar2': 12, 'CPar3': 13.0},'free_par': {'FPar1': 10.589,'FPar2': 11.44,'FPar3': 13.0,'FPar4': 12.427}}]