如果我们最大化窗口，则调整小部件的大小

Question

如果窗口最大化，我想展开小部件。请找到下面的示例代码，如果我们运行此程序，我们将获得一些树视图，但如果我们最大化窗口，则树视图将移动到左角，是否有可能在最大化后使视图展开并完美匹配。谢谢

import os
import tkinter as tk
import tkinter.ttk as ttk
import datetime
import re
import threading

class Window:
i=0
def __init__(self,master):
self.master=master
self.master.geometry('700x350+350+100')
self.label = tk.Label(self.master, text='Sample', font=("Arial", 20)).grid(row=0,columnspan=3)
cols = ('A','B','C')
self.treeview = ttk.Treeview(self.master, columns=cols)
v_scrollbar = ttk.Scrollbar(self.master, orient='vertical', command=self.treeview.yview)
self.treeview.config( yscrollcommand=v_scrollbar.set)
for col in cols:
self.treeview.heading(col, text=col)
self.treeview.column(col,minwidth=0,width=170)

self.treeview.grid(row=1, column=0)
v_scrollbar.grid(row=1, column=1, sticky='nes')


#--- main---
def main():
root = tk.Tk()

Window(root)
root.mainloop()

if __name__ == '__main__':
main()

Answer 1

第一个添加：

self.master.rowconfigure(1, weight=1)
self.master.columnconfigure(0, weight=1)

以告诉布局管理器展开放置CCD_ 1的单元以填充可用空间。

然后将sticky='nsew'添加到self.treeview.grid(...):

self.treeview.grid(row=1, column=0, sticky='nsew')

以下是修改后的__init__():

def __init__(self,master):
self.master=master
self.master.geometry('700x350+350+100')
tk.Label(self.master, text='Sample', font=("Arial", 20)).grid(row=0,columnspan=3)
cols = ('A','B','C')
self.treeview = ttk.Treeview(self.master, columns=cols)
v_scrollbar = ttk.Scrollbar(self.master, orient='vertical', command=self.treeview.yview)
self.treeview.config( yscrollcommand=v_scrollbar.set)
for col in cols:
self.treeview.heading(col, text=col)
self.treeview.column(col,minwidth=0,width=170)

self.treeview.grid(row=1, column=0, sticky='nsew') # added sticky='nsew'
v_scrollbar.grid(row=1, column=1, sticky='ns')
# tell layout manager to expand the cell where the treeview is
self.master.rowconfigure(1, weight=1)
self.master.columnconfigure(0, weight=1)