如何对两个列表框使用单个滚动滑块

Question

我希望能够使用同一个滑块使两个列表框同时滚动。我已经设法让鼠标滚轮同时为两者工作，所以我现在只需要滑块工作。真正的列表最终将具有相同数量的内容，因此如果两者都连接到滚动滑块，它们应该没问题。我设法让滑块在一个但不是两个上工作。

from tkinter import *  # allows for the use of tkinter GUI

win = Tk()  # creates the tkinter window
win.title("test")  # sets the name of the window
win.geometry("1100x700")  # sets the size of the window
win.resizable(False, False)  # prevents the window from being resized


# these are made up lists for this question
databaselist2 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
databaselist1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]


# -----------------------------------------------------------------------------------------------------------------------
# this synchronizes the mouse scrolled for both list boxes
def scroll2(event):  # sets up the scroll2 function
    IDsearchresultslist.yview_scroll(int(-4 * (event.delta / 120)), "units")  # makes it so that when the user scrolls
    # though one list box, all the list boxes scroll as well


def scroll1(event):  # sets up the scroll1 function
    alphabetlist.yview_scroll(int(-4 * (event.delta / 120)), "units")  # makes it so that when the user scrolls
    # though one list box, all the list boxes scroll as well


# -----------------------------------------------------------------------------------------------------------------------


# this section sets up the list boxes and the single scroll bar
alphabetframe = Frame(win)  # creates the frame that will contain the scrollbar for the alphabetframe
scrollbar = Scrollbar(alphabetframe, orient=VERTICAL)  # creats the scrollbar for the alphabetlist box
IDsearchresultslist = Listbox(win, width=39, font=('Arial', 12, 'bold'),
                              yscrollcommand=scrollbar.set)  # creates the
scrollbar.config(command=IDsearchresultslist.yview)  # configures the scrollbar to be able to see the y axis

# of the listbox
# ID search list box that will contain the

IDsearchresultslist.place(relx=.6, rely=.15)  # moves the ID search results box to its location

# this section creates the first buttons that will show up when the program is opened
alphabetlist = Listbox(alphabetframe, width=50, font=('Arial', 12, 'bold'),
                       yscrollcommand=scrollbar.set)  # creates the search entry box
scrollbar.config(command=alphabetlist.yview)  # configures the scrollbar to be able to see the y axis

# of the listbox
scrollbar.pack(side=RIGHT, fill=Y)  # makes the scrollbar apear on the right side of the alphabetlist box
alphabetframe.place(relx=.05, rely=.2)  # moves the frame that contains the scrollbar to its location

alphabetlist.pack(pady=15, padx=15)

alphabetlist.bind("<MouseWheel>", scroll2)  # when the mousewheel is used, the scroll2
# function with be activated
IDsearchresultslist.bind("<MouseWheel>", scroll1)  # when the mousewheel is used, the scroll1
# function with be activated


# ----------------------------------------------------------------------------------------------------------------------
# this adds all the information from both lists into box list boxes
alphabetlist.delete(0, END)  # clears the alphabetlist
for item in databaselist2:  # loops though the list
    alphabetlist.insert(END, item)  # moves each individual item from the list into the alphabet listbox
    # as the list gets looped

for item in databaselist1:  # loops though the list
    IDsearchresultslist.insert(END, item)  # moves each individual item from the list into the alphabet listbox
    # as the list gets looped

win.mainloop()

Answer 1

您可以将以下功能添加到您的代码中：


def my_yview(*args):
    alphabetlist.yview(*args)
    IDsearchresultslist.yview(*args)

设置滚动条配置如下：


scrollbar.config(command=my_yview)

这样，您可以使用一个垂直滚动条滚动两个列表。

例如：


...
def my_yview(*args):
    alphabetlist.yview(*args)
    IDsearchresultslist.yview(*args)

# this section sets up the list boxes and the single scroll bar
alphabetframe = Frame(win)  # creates the frame that will contain the scrollbar for the alphabetframe
scrollbar = Scrollbar(alphabetframe, orient=VERTICAL)  # creats the scrollbar for the alphabetlist box
IDsearchresultslist = Listbox(win, width=39, font=('Arial', 12, 'bold'),
                              yscrollcommand=scrollbar.set)  # creates the
# scrollbar.config(command=IDsearchresultslist.yview)  # configures the scrollbar to be able to see the y axis

# of the listbox
# ID search list box that will contain the

IDsearchresultslist.place(relx=.6, rely=.15)  # moves the ID search results box to its location

# this section creates the first buttons that will show up when the program is opened
alphabetlist = Listbox(alphabetframe, width=50, font=('Arial', 12, 'bold'),
                       yscrollcommand=scrollbar.set)  # creates the search entry box
# scrollbar.config(command=alphabetlist.yview)  # configures the scrollbar to be able to see the y axis

scrollbar.config(command=my_yview)
...

基于此tutorial。

如何对两个列表框使用单个滚动滑块

How to use a single scroll slider for two list boxes

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