Question

tkinter/ttk我遇到了一些问题。

所以，我知道如何获取Treeview.focus，但是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()

我将Python 3.6与tkinter/ttk一起使用。

Answer 1

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

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()

Answer 2

以Gardener85's answer为基础。

使用单个.item更新行，而不是使用.insert添加新行，然后使用.delete删除旧行将有助于Treeview包含多于9行并将更新后的行保持在同一位置在树状视图中。

修改后的Gardener85's answer的完整代码：

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()

Python 3. TTK。如何改变特定细胞的价值？

2 个答案: