相关疑难解决方法(0)

基于在 Tkinter 中动态更改画布的滚动区域的示例，我尝试实现一个框架，您可以在其中使用 tkinter 在可滚动框架中添加和删除条目。我的问题是，删除条目后，保存项目的框架不会调整大小。添加条目时，它会正确调整大小。我update_layout()在这两种情况下都打电话：

from tkinter import *

class ScrollableContainer(Frame):
    """A scrollable container that can contain a number of messages"""

    def __init__(self, master, **kwargs):
        Frame.__init__(self, master, **kwargs) #holds canvas & scrollbars
        # configure row and col to take additional space if there is some
        self.grid_rowconfigure(0, weight=1)
        self.grid_columnconfigure(0, weight=1)

        # create canvas
        self.canv = Canvas(self, bd=0, highlightthickness=0)

        # create scrollbars
        self.hScroll = Scrollbar(self, orient='horizontal',
                                 command=self.canv.xview)
        self.hScroll.grid(row=1, column=0, sticky='we')
        self.vScroll = Scrollbar(self, orient='vertical',
                                 command=self.canv.yview)
        self.vScroll.grid(row=0, column=1, sticky='ns') …