tkinter滚动条在窗口中不起作用

Question

我刚开始使用tkinter,我不知道如何使滚动条工作.我在stackoverflow上检查了许多关于tkinter的不同线程,我对我究竟需要做什么感到困惑.

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

已经在#*******词典数据*******中插入了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

您将滚动条绑定到未打包的列表框.这没有意义.
您希望将滚动条绑定到已创建Label小部件的文本.但是,您无法将其绑定到Label小部件(很容易).但是,您可以将滚动条绑定到"文本"小部件.

如果将Label设为Text,则无法使用该textvariable属性.您不必在按钮回调中设置textvariable,而是必须删除Text的内容并在其中放置新内容.

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()