Python 3。TTK。如何更改特定单元格的值？

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

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()

---

我正在使用

python3.6

和

tkinter/ttk

我添加了一个线程，这样程序在等待用户输入编辑时不会挂起。您可能需要添加一个或多个文本框来输入编辑

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()

继续发展

使用单个.item更新行，而不是使用.insert添加新行，然后使用.delete删除旧行，这将有助于处理包含9行以上的树视图，并将更新的行保持在树视图中的相同位置

修改的完整代码：

---

您的解决方案有两个问题

tview.insert（“，str（focused）[1:”，values=（“”，str（x）））

获取一个错误

\u tkinter.TclError:预期的整数，但得到了“009”

当我将其更改为

tview.insert（“，int（focused）[1:”，values=（“”，str（x））

时，它可以工作，但最多只能有9行。第10行已经获取了一个值“I00A”，这将导致错误

ValueError:以10为基数的int（）的文本无效：“00A”

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.item(focused, values=("", str(x)))

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()