tkinter 滚动条在 window 中不起作用

Question

我刚开始使用 tkinter，我不知道如何让滚动条工作。我在 Whosebug 上检查了许多关于 tkinter 的不同线程，我对我到底需要做什么感到困惑。

我已经添加了滚动条，但它没有滚动任何东西（评论# ******* Scrollbar *******）。我希望它从内容框架滚动文本。

# ******* 词典数据 ******* 中已经插入了 lorem ipsum。

from tkinter import *

class Search(Tk):
    def __init__(self):
        Tk.__init__(self)
        self.minsize(380,444)
        self.maxsize(380,444)
        self.title("")

        self.search_start = StringVar()
        self.search_start.set('Enter your query')
        self.search_result = StringVar()

        self.bind("<Return>", self.search_button)

        self.scrollbar = Frame(self)
        self.scrollbar.pack(side=RIGHT, fill=Y)
        self.search_bar = Frame(self, bg="blue")
        self.search_bar.pack(side=TOP, fill=X)
        self.index = Frame(self)
        self.index.pack(side=LEFT)
        self.content = Frame(self)
        self.content.pack(side=TOP, fill=X)
        self.status_bar = Frame(self, bg="yellow")
        self.status_bar.pack(side=BOTTOM, fill=X)

# ******* Search Input *******

        self.entry = Entry(self.search_bar, textvariable = self.search_start)
        self.entry.pack(side=LEFT, padx=4, pady=4)

# ******* Search Button *******

        self.search = Button(self.search_bar, text="Search", command=self.search_button)
        self.search.pack(side=LEFT)

# ******* Content *******

        self.content = Label(self.content, textvariable = self.search_result, bg="ghost white", wraplength=360, width=52, height=26, justify=LEFT, anchor=NW) # justify == align
        self.content.pack(side=LEFT)

# ******* Scrollbar *******

        self.scrollbar = Scrollbar(self.scrollbar)
        self.scrollbar.pack(side=RIGHT, fill=Y)

        self.listbox = Listbox(self.scrollbar, yscrollcommand=self.scrollbar.set)


        self.scrollbar.config(command=self.listbox.yview)

# ******* Toolbar *******

        self.status_bar = Label(self.status_bar, text="toolbar", bg="yellow", relief=FLAT)
        self.status_bar.pack(side=LEFT)

# ******* Search Button *******

    def search_button(self, event=None):
        result_text = dictionary_data.get(self.entry.get(), "Entry not in database.\n\nCheck if you wrote your query correctly or type index to see all available entries.")
        self.search_result.set(result_text)
        self.search_start.set("")

# ******* Dictionary data *******

dictionary_data = {
    "index": 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin laoreet a enim a elementum. Ut tristique maximus mauris vitae tempus. Aliquam erat volutpat. Etiam semper, libero posuere vulputate aliquet, arcu odio fermentum ex, vulputate elementum urna felis fringilla nisi. Quisque nec nunc eu lacus fermentum sollicitudin quis ut ante. Maecenas consectetur varius eros, quis mollis est tincidunt eget. Morbi tempus aliquam dui, quis placerat metus porta sit amet. Suspendisse vitae diam at nibh semper iaculis quis quis velit. Morbi ac ipsum porttitor, lacinia eros at, volutpat arcu. Vestibulum ut diam convallis, auctor metus a, malesuada ante. Aliquam vitae leo magna. Quisque rutrum tristique neque, ut venenatis nibh viverra eget. Duis vitae felis non lacus viverra varius. Nunc placerat eros sed arcu vestibulum, id pharetra felis fermentum. Quisque semper vitae dolor sed molestie. Suspendisse semper ante eu sem ultricies ullamcorper. Quisque suscipit pellentesque varius. Integer magna lorem, lacinia in dolor quis, commodo tempus nibh. Etiam fermentum cursus vehicula. Vestibulum congue arcu at purus viverra faucibus. Pellentesque pellentesque facilisis massa, vel iaculis mauris egestas eu. Sed ut risus eu turpis sodales faucibus. Morbi aliquam sit amet purus ac rhoncus. Aliquam eros orci, laoreet ut fringilla vitae, sodales vitae ipsum. Nunc eu enim condimentum, fermentum massa hendrerit, cursus orci. Suspendisse potenti. Nulla faucibus velit ipsum, sollicitudin elementum nibh consequat ac. Nunc et condimentum nibh. Sed a malesuada nisl.Nulla at est arcu. Maecenas elementum ex nulla. Aliquam erat volutpat. Vivamus mattis iaculis nulla, eget tempus purus fermentum vel. Etiam auctor dolor eget eros scelerisque accumsan. Donec lacus tellus, interdum non gravida quis, cursus non magna. Sed lacinia, elit quis hendrerit lobortis, lorem dolor viverra purus, interdum vestibulum enim orci ac nibh. Fusce tellus lacus, pharetra at dignissim eu, maximus at ipsum. Fusce nec semper felis.',
}

# ******* Loop *******

app = Search()
app.mainloop()

Answer 1

这是一个工作示例：

from tkinter import *

# ******* Dictionary data *******

dictionary_data = {
    "index": 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin laoreet a enim a elementum. Ut tristique maximus mauris vitae tempus. Aliquam erat volutpat. Etiam semper, libero posuere vulputate aliquet, arcu odio fermentum ex, vulputate elementum urna felis fringilla nisi. Quisque nec nunc eu lacus fermentum sollicitudin quis ut ante. Maecenas consectetur varius eros, quis mollis est tincidunt eget. Morbi tempus aliquam dui, quis placerat metus porta sit amet. Suspendisse vitae diam at nibh semper iaculis quis quis velit. Morbi ac ipsum porttitor, lacinia eros at, volutpat arcu. Vestibulum ut diam convallis, auctor metus a, malesuada ante. Aliquam vitae leo magna. Quisque rutrum tristique neque, ut venenatis nibh viverra eget. Duis vitae felis non lacus viverra varius. Nunc placerat eros sed arcu vestibulum, id pharetra felis fermentum. Quisque semper vitae dolor sed molestie. Suspendisse semper ante eu sem ultricies ullamcorper. Quisque suscipit pellentesque varius. Integer magna lorem, lacinia in dolor quis, commodo tempus nibh. Etiam fermentum cursus vehicula. Vestibulum congue arcu at purus viverra faucibus. Pellentesque pellentesque facilisis massa, vel iaculis mauris egestas eu. Sed ut risus eu turpis sodales faucibus. Morbi aliquam sit amet purus ac rhoncus. Aliquam eros orci, laoreet ut fringilla vitae, sodales vitae ipsum. Nunc eu enim condimentum, fermentum massa hendrerit, cursus orci. Suspendisse potenti. Nulla faucibus velit ipsum, sollicitudin elementum nibh consequat ac. Nunc et condimentum nibh. Sed a malesuada nisl.Nulla at est arcu. Maecenas elementum ex nulla. Aliquam erat volutpat. Vivamus mattis iaculis nulla, eget tempus purus fermentum vel. Etiam auctor dolor eget eros scelerisque accumsan. Donec lacus tellus, interdum non gravida quis, cursus non magna. Sed lacinia, elit quis hendrerit lobortis, lorem dolor viverra purus, interdum vestibulum enim orci ac nibh. Fusce tellus lacus, pharetra at dignissim eu, maximus at ipsum. Fusce nec semper felis.',
}

# ******* Search Button *******

def search_button(event=None):
    content.delete("1.0", END)
    result_text = dictionary_data.get(entry.get(), "Entry not in database.\n\nCheck if you wrote your query correctly or type index to see all available entries.")
    search_result = result_text
    search_start = ""
    entry.delete(0, END)
    content.insert(END, search_result)


master = Tk()

master.minsize(580,444)
master.maxsize(580,444)
master.title("Master")

search_start = "Enter your query"
search_result = ""
master.bind("<Return>", search_button)

# ******* Search Input *******

entry = Entry(master)
entry.insert(END, search_start)
entry.pack(side=LEFT, padx=4, pady=4)

# ******* Search Button *******

search = Button(master, text="Search", command=search_button)
search.pack(side=LEFT)

# ******* Scroll & Content *******

scrollbar = Scrollbar(master)
scrollbar.pack(side=RIGHT, fill=Y)
content = Text(master, yscrollcommand=scrollbar.set, bg="ghost white")
content.insert(END, search_result)
content.pack(side=LEFT)
scrollbar.config(command=content.yview)

# ******* Loop ***************

mainloop()

基本上我用的是Text而不是Label。

Answer 2

您正在将滚动条绑定到您未打包的列表框。这没有意义。
您想要将滚动条绑定到文本，您已将其制成标签小部件。但是，您不能（轻松）将它绑定到 Label 小部件。但是，您可以将滚动条绑定到文本小部件。

如果将标签设为文本，则无法使用 textvariable 属性。您必须删除文本的内容并在其中放置新内容，而不是在按钮回调中设置文本变量。

这是修改后的代码：

from tkinter import *

class Search(Tk):
    def __init__(self):
        Tk.__init__(self)
        self.minsize(380,444)
        self.maxsize(380,444)
        self.title("")

        self.search_start = StringVar()
        self.search_start.set('Enter your query')
        self.search_result = StringVar()

        self.bind("<Return>", self.search_button)

        self.scrollbar_frame = Frame(self)
        self.scrollbar_frame.pack(side=RIGHT, fill=Y)
        self.search_bar = Frame(self, bg="blue")
        self.search_bar.pack(side=TOP, fill=X)
        self.index = Frame(self)
        self.index.pack(side=LEFT)
        self.content = Frame(self)
        self.content.pack(side=TOP, fill=X)
        self.status_bar = Frame(self, bg="yellow")
        self.status_bar.pack(side=BOTTOM, fill=X)

# ******* Search Input *******

        self.entry = Entry(self.search_bar, textvariable = self.search_start)
        self.entry.pack(side=LEFT, padx=4, pady=4)

# ******* Search Button *******

        self.search = Button(self.search_bar, text="Search", command=self.search_button)
        self.search.pack(side=LEFT)

# ******* Content *******

        self.content = Text(self.content, bg="ghost white", width=52, height=26) # justify == align
        self.content.pack(side=LEFT)

# ******* Scrollbar *******

        self.scrollbar = Scrollbar(self.scrollbar_frame)
        self.scrollbar.pack(side=RIGHT, fill=Y)

        self.content.config(yscrollcommand=self.scrollbar.set)

        self.scrollbar.config(command=self.content.yview)

# ******* Toolbar *******

        self.status_bar = Label(self.status_bar, text="toolbar", bg="yellow", relief=FLAT)
        self.status_bar.pack(side=LEFT)

# ******* Search Button *******

    def search_button(self, event=None):
        result_text = dictionary_data.get(self.entry.get(), "Entry not in database.\n\nCheck if you wrote your query correctly or type index to see all available entries.")
        self.content.delete(1.0, END)
        self.content.insert(END, result_text)
        self.search_start.set("")

# ******* Dictionary data *******

dictionary_data = {
    "index": 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin laoreet a enim a elementum. Ut tristique maximus mauris vitae tempus. Aliquam erat volutpat. Etiam semper, libero posuere vulputate aliquet, arcu odio fermentum ex, vulputate elementum urna felis fringilla nisi. Quisque nec nunc eu lacus fermentum sollicitudin quis ut ante. Maecenas consectetur varius eros, quis mollis est tincidunt eget. Morbi tempus aliquam dui, quis placerat metus porta sit amet. Suspendisse vitae diam at nibh semper iaculis quis quis velit. Morbi ac ipsum porttitor, lacinia eros at, volutpat arcu. Vestibulum ut diam convallis, auctor metus a, malesuada ante. Aliquam vitae leo magna. Quisque rutrum tristique neque, ut venenatis nibh viverra eget. Duis vitae felis non lacus viverra varius. Nunc placerat eros sed arcu vestibulum, id pharetra felis fermentum. Quisque semper vitae dolor sed molestie. Suspendisse semper ante eu sem ultricies ullamcorper. Quisque suscipit pellentesque varius. Integer magna lorem, lacinia in dolor quis, commodo tempus nibh. Etiam fermentum cursus vehicula. Vestibulum congue arcu at purus viverra faucibus. Pellentesque pellentesque facilisis massa, vel iaculis mauris egestas eu. Sed ut risus eu turpis sodales faucibus. Morbi aliquam sit amet purus ac rhoncus. Aliquam eros orci, laoreet ut fringilla vitae, sodales vitae ipsum. Nunc eu enim condimentum, fermentum massa hendrerit, cursus orci. Suspendisse potenti. Nulla faucibus velit ipsum, sollicitudin elementum nibh consequat ac. Nunc et condimentum nibh. Sed a malesuada nisl.Nulla at est arcu. Maecenas elementum ex nulla. Aliquam erat volutpat. Vivamus mattis iaculis nulla, eget tempus purus fermentum vel. Etiam auctor dolor eget eros scelerisque accumsan. Donec lacus tellus, interdum non gravida quis, cursus non magna. Sed lacinia, elit quis hendrerit lobortis, lorem dolor viverra purus, interdum vestibulum enim orci ac nibh. Fusce tellus lacus, pharetra at dignissim eu, maximus at ipsum. Fusce nec semper felis.',
}

# ******* Loop *******

app = Search()
app.mainloop()

Answer 3

要将滚动条连接到可滚动小部件，您需要执行以下操作：

设置要滚动的小部件的 xscrollcommand and/or yscrollcommand 属性（例如：文本小部件、列表框或 canvas）。该值通常是滚动条的 set 方法。
设置滚动条的command属性。该值通常是要滚动的小部件的 xview 或 yview 命令。

例如：

text_widget = tk.Text(...)
vertical_scrollbar = tk.Scrollbar(...)

text_widget.configure(yscrollcommand=vertical_scrollbar.set)
vertical_scrollbar.configure(command=text_widget.yview)

它们必须在两个方向上连接起来，以便滚动条反映小部件的变化，而小部件反映滚动条的变化。

tkinter 滚动条在 window 中不起作用

tkinter scrollbar doesn't work in a window

python

tkinter

python-3.x