Python TKinter：调整窗口大小时，框架和画布将水平扩展，但不会垂直扩展

Question

由于某种原因，我能够让这个 TKinter 框架 (allValOuterFrame) 在调整其窗口大小时垂直和水平扩展，但是，似乎框架所容纳的画布以及框架该画布内的垂直滚动条只会水平扩展。有人可以解释一下原因吗？

这是我的代码：

# At first I only had "from X import *" but then discovered that
# it is bad practice, so I also included "import X" statements so
# that if I need to use something from tk or ttk explicitly, I can,
# but I had 2/3 of my code done at that point so I had to leave in the
# "import *" things.
try:
    from Tkinter import * #python 2
    import Tkinter as tk
    from ttk import *
    import ttk
    import tkMessageBox as msg
    import tkFileDialog as openfile
except ImportError:
    from tkinter import * #python 3
    import tkinter as tk
    from tkinter.ttk import *
    import tkinter.ttk as ttk
    from tkinter import messagebox as msg
    from tkinter import filedialog as openfile
import csv
# My stuff:
from extractor import Analysis
from extractor import createDictionariesAndLists as getRawData
from nitrogenCorrector import correct as nCorrect
from carbonCorrector import correct as cCorrect


( ... )


def createAllValWindow(self):

    allValWindow = Toplevel(self)
    allValWindow.grab_set()

    if self.element == "N":
        allValWindow.title("All Nitrogen Raw Data Values")
    elif self.element == "C":
        allValWindow.title("All Carbon Raw Data Values")
    else:
        allValWindow.title("All Raw Data Values")

    allValOuterFrame = tk.Frame(allValWindow,background="#00FF00")
    allValCanvas = Canvas(allValOuterFrame, borderwidth=0)
    allValInnerFrame = Frame(allValCanvas, borderwidth=5)

    def allValOnFrameConfigure(event):
        allValCanvas.configure(scrollregion=allValCanvas.bbox("all"))

    allValOuterFrame.grid_rowconfigure(0,weight=1)
    allValOuterFrame.grid_columnconfigure(0,weight=1)
    allValInnerFrame.grid_rowconfigure(0,weight=1)
    allValInnerFrame.grid_columnconfigure(0,weight=1)

    allValVertScrollbar = Scrollbar(allValOuterFrame, orient="vertical",command=allValCanvas.yview)
    allValHorizScrollbar = Scrollbar(allValOuterFrame, orient="horizontal",command=allValCanvas.xview)
    allValCanvas.configure(yscrollcommand=allValVertScrollbar.set, xscrollcommand=allValHorizScrollbar.set)
    allValVertScrollbar.grid(row=1,column=12,sticky=N+S)
    allValHorizScrollbar.grid(row=2,column=0,columnspan=12,sticky=E+W)

    allValCanvas.grid(row=1,column=0,columnspan=12,sticky=N+S+E+W)        allValCanvas.create_window((4,4),window=allValInnerFrame,anchor="nw",tags="allValInnerFrame")
    allValInnerFrame.bind("<Configure>",allValOnFrameConfigure)
    allValDoneButton = Button(allValWindow,text="Done",command=allValWindow.destroy)
    allValOuterFrame.pack(fill="both",expand=1)
    allValDoneButton.pack()

    textRows = [self.rawHeader]
    textLabels = [[]]
    numDiffAminos = len(self.analyses) - 1 # Ignore the "trash" list at the end
    for singleAminoAnalyses in self.analyses[0:numDiffAminos]: # Once again, ignoring the last list
        if len(singleAminoAnalyses) < 1:
            continue
        for analysis in singleAminoAnalyses:
            textRows.append([str(analysis.analysisID),
                             str(analysis.row),
                             str(analysis.identifier1),
                             str(analysis.identifier2),
                             str(analysis.comment),
                             str(analysis.peakNumber),
                             str(analysis.rt),
                             str(analysis.component),
                             str(analysis.areaAll),
                             str(analysis.ampl), 
                             str(analysis.r), 
                             str(analysis.delta)])
            textLabels.append([])
    for i in range(len(textRows)):
        if i == 0:
            listRow = i
        else:
            listRow = i+1
        for j in range(len(textRows[i])):
            if i == 0:
                textLabels[i].append(Label(allValInnerFrame,text=textRows[i][j],font=("Fixedsys",10,"bold")))
            else:
                textLabels[i].append(Label(allValInnerFrame,text=textRows[i][j]))
            if j == 9:
                textLabels[i][j].grid(row=listRow,column=j,sticky=W+E,padx=(4,10))
            else:
                textLabels[i][j].grid(row=listRow,column=j,sticky=W+E,padx=(4,4))
        if i == 0:
            separator = tk.Frame(allValInnerFrame, height=2, borderwidth=1, bg="black", relief=SUNKEN)
            separator.grid(row=1,column=0,columnspan=12,sticky=W+E)

Answer 1

这是因为你给AllValOuterFrame的第0行权重1，但是你把画布放在第1行。如果你把画布移动到第0行或者给第1行权重1，它会调整大小你期望。