从不同功能的 tkinter 文本框中获取文本

Question

美好的一天。我有一个带有 4 个复选按钮的简单 tkinter UI。每个都有一个关联的文本框。我设法通过从 .txt 文件中的字典获取复选框状态和文本框中的文本来创建 UI。我还可以使用 update() 函数将更改后的复选按钮状态成功写回文件。

问题：我无法弄清楚如何获取文本框中已更改的文本并将其写回文件。我需要获取每个文本框的文本框字符串，但它们是 makeUI() 函数的本地字符串。我不确定如何将所有文本框传递给 update() 函数。

非常感谢有关如何解决此问题的建议。

代码如下：

from tkinter import *
from tkinter.scrolledtext import ScrolledText
import json

def loadDictFile(data_folder): 
    critDict = json.loads(open(data_folder+'critDict3.txt').read())
    return critDict

def update(critDict, checkbuttons, data_folder):
    for k in checkbuttons:
        key = k.cget('text')
        critDict[key][0] = k.var.get() 
        critDict[key][1] = commentBox.get("1.0",'end-1c') # <--HERE IS THE PROBLEM
    with open(data_folder+'critDict3.txt', 'w') as file:
        file.write(json.dumps(critDict))

def makeUI(data_folder, critDict):
    newDict = critDict
    top = Tk()
    checkbuttons={}
    for key, val in newDict.items():
        chkVar = IntVar()
        key  = Checkbutton(top, text = key, variable=chkVar) 
        key.var = chkVar
        key.var.set(val[0])
        key.pack()

        commentBox = ScrolledText(top, height=2, width=30)
        commentBox.pack()
        commentBox.insert(END, val[1])
        comment = commentBox.get("1.0",'end-1c')
        checkbuttons[key]=comment

    print('checkbuttons is', checkbuttons)

    button=Button(top, text="Update", command=lambda : update(critDict, checkbuttons, data_folder))
    button.pack()

    top.mainloop()


data_folder = "C:\Users\NB\test\data\"
critDict = loadDictFile(data_folder)
makeUI(data_folder, critDict)

这里是磁盘文件的文本'critDict3.txt

{
"crit1": [1, "comments"], "crit4": [1, "comment4"], "crit2": [1, "comment2"], "crit3": [1, "comments3"]
}

Answer 1

您可以用所有 chkVar 和 commentBox

创建 list/dictionary

 all_items[key] = [chkVar, commentBox]

并发送到 update()

 command=lambda:update(critDict, all_items, data_folder))

在 update() 里面你可以访问它

 for key, [chkVar, commentBox]  in all_items.items():

def makeUI(data_folder, critDict):
    top = Tk()

    all_items = {}

    for key, val in critDict.items():
        chkVar = IntVar(value=val[0])
        cb = Checkbutton(top, text=key, variable=chkVar) 
        cb.pack()

        commentBox = ScrolledText(top, height=2, width=30)
        commentBox.pack()
        commentBox.insert('end', val[1])

        all_items[key] = [chkVar, commentBox]

    button = Button(top, text="Update", command=lambda:update(critDict, all_items, data_folder))
    button.pack()

    top.mainloop()

def update(critDict, all_items, data_folder):

    for key, [chkVar, commentBox]  in all_items.items():
        critDict[key] = [chkVar.get(), commentBox.get("1.0", 'end-1c')]

    with open(data_folder+'critDict3.txt', 'w') as file:
        file.write(json.dumps(critDict))

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