Python 3.TTK.如何更改特定单元格的值? [英] Python 3. TTK. How to change value of the specific cell?

问题描述

我对 tkinter/ttk 有一些问题.

所以，我知道如何获取 Treeview.focus，但如何更改此表中特定单元格的值?有什么建议吗?

So, i know how to get Treeview.focus, but how to change value of the specific cell in this table? Any suggestions?

import tkinter as tk
import tkinter.ttk as ttk

root = tk.Tk()

tview = ttk.Treeview(root)
tview["columns"] = ("SLOT_1","SLOT_2")
tview.column("SLOT_1", width=100 )
tview.column("SLOT_2", width=100)

tview.heading("#0",text="Column 0",anchor="w")
tview.heading("SLOT_1", text="Column 1")
tview.heading("SLOT_2", text="Column 2")

def add_item():
    tview.insert("","end",values=("","bar"))

def edit_item():
    focused = tview.focus()
    print(tview.item(focused))

tview.pack()

add_item = tk.Button(root,text="Add item",command=add_item)
add_item.pack(expand=True,fill='both')

edit_item = tk.Button(root,text="Edit item",command=edit_item)
edit_item.pack(expand=True,fill='both')

root.mainloop()

我使用 Python 3.6 和 tkinter/ttk.

推荐答案

我添加了一个线程，因此程序在等待用户输入编辑时不会挂起.您可能希望为要输入的编辑添加一个或多个文本框

I added a thread so the program doesn't hang while it waits for the user to enter the edit. You'll probably want to add a text box or multiple text boxes for the edits to be entered

import tkinter as tk
import tkinter.ttk as ttk
import threading

root = tk.Tk()

tview = ttk.Treeview(root)
tview["columns"] = ("SLOT_1", "SLOT_2")
tview.column("SLOT_1", width=100)
tview.column("SLOT_2", width=100)

tview.heading("#0", text="Column 0", anchor="w")
tview.heading("SLOT_1", text="Column 1")
tview.heading("SLOT_2", text="Column 2")

def test_program_thread():
    thread = threading.Thread(None, edit_item, None, (), {})
    thread.start()

def add_item():
    tview.insert("", "end", values=("", "bar"))


def edit_item():
    focused = tview.focus()
    x = input('Enter a Value you want to change')
    tview.insert("", str(focused)[1:], values=("", str(x)))
    tview.delete(focused)

tview.pack()

add_item = tk.Button(root, text="Add item", command=add_item)
add_item.pack(expand=True, fill='both')

edit_item_button = tk.Button(root, text="Edit item", command=test_program_thread)
edit_item_button.pack(expand=True, fill='both')

root.mainloop()

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