畫布滾動問題tkinter

Question

我已經開始在這個文件上工作，我正在試圖讓大多數小部件的畫布滾動，但它不工作。我認爲問題在於高度，寬度和滾動區域的定義。但是當我玩弄這些數字時，我一直無法獲得任何工作。下面是代碼：

from tkinter import * 
from tkinter import ttk 
from tkinter import filedialog 

def work_area(): 
    #create GUI 
    root = Tk() 
    root.geometry("+800+300") 
    root.title("FSCE Database") 
    frame_main = ttk.Frame(root) 
    frame_main.grid(column = 0, row = 0) 

    #variables 
    sort_by_var = StringVar() 
    names_list =() 
    names_string = StringVar(value = names_list) 
    FONT = ("TkDefaultFont", 11) 

    father_name = StringVar() 
    address = StringVar() 
    city = StringVar() 
    state = StringVar() 
    home_phone = StringVar() 
    cell_phone = StringVar() 
    email = StringVar() 
    num_people = StringVar() 
    name_age = StringVar() 
    campsite = StringVar() 
    notes = StringVar() 

    #populate 
    #frame left 
    frame_left = ttk.Frame(frame_main) 
    frame_left.grid(column = 1, row = 1) 

    SORT_BY_TEXT = ttk.Label(frame_left, text = "Sort By:", font = FONT) 
    SORT_BY_TEXT.grid(column = 1, row = 1) 

    SORT_BY = ttk.Combobox(frame_left, textvariable = sort_by_var, font = FONT, width = 8) 
    SORT_BY.grid(column = 2, row = 1) 
    SORT_BY["values"] = ("Name", "# People", "Date") 

    NAMES = Listbox(frame_left, listvariable = names_string, font = FONT, height = 10, relief = "ridge") 
    NAMES.grid(column = 1, columnspan = 2, row = 2, sticky = ("E, W")) 

    ADD = ttk.Button(frame_left, text = "Add", command = None) 
    ADD.grid(column = 1, row = 3) 

    REMOVE = ttk.Button(frame_left, text = "Remove", command = None) 
    REMOVE.grid(column = 2, row = 3, sticky = ("E")) 

    SCROLLBAR = ttk.Scrollbar(frame_left, orient = VERTICAL, command = NAMES.yview) 
    SCROLLBAR.grid(column = 3, row = 2, sticky = ("N, S")) 
    NAMES.configure(yscrollcommand = SCROLLBAR.set) 

    for child in frame_left.winfo_children(): 
     child.grid_configure(padx = 5, pady = 5) 

    #right side 
    canvas = Canvas(frame_main, height = 200, width = 300, scrollregion = (0, 0, 300, 500)) 
    canvas.grid(column = 2, row = 1) 

    SCROLLBAR_2 = ttk.Scrollbar(frame_main, orient = VERTICAL) 
    SCROLLBAR_2.grid(column = 3, row = 1, sticky = ("N, S")) 
    canvas.configure(yscrollcommand = SCROLLBAR_2.set) 
    SCROLLBAR_2.configure(command = canvas.yview) 

    F_N_L = ttk.Label(canvas, text = "Father/Guardian:", font = FONT) 
    F_N_L.grid(column = 1, row = 1, sticky = ("E"))  
    F_N_E = ttk.Entry(canvas, textvariable = father_name, font = FONT, width = 20) 
    F_N_E.grid(column = 2, columnspan = 3, row = 1, sticky = ("W")) 

    A_L = ttk.Label(canvas, text = "Address:", font = FONT) 
    A_L.grid(column = 1, row = 2, sticky = ("E"))  
    A_E = ttk.Entry(canvas, textvariable = address, font = FONT, width = 30) 
    A_E.grid(column = 2, columnspan = 3, row = 2, sticky = ("W")) 

    C_L = ttk.Label(canvas, text = "City:", font = FONT) 
    C_L.grid(column = 1, row = 3, sticky = ("E")) 
    C_E = ttk.Entry(canvas, textvariable = city, font = FONT, width = 15) 
    C_E.grid(column = 2, row = 3, sticky = ("W")) 

    S_L = ttk.Label(canvas, text = "State:", font = FONT) 
    S_L.grid(column = 3, row = 3, sticky = ("E")) 
    S_E = ttk.Entry(canvas, textvariable = state, font = FONT, width = 5) 
    S_E.grid(column = 4, row = 3, sticky = ("W")) 

    E_L = ttk.Label(canvas, text = "Email:", font = FONT) 
    E_L.grid(column = 1, row = 4, sticky = ("E")) 
    E_E = ttk.Entry(canvas, textvariable = email, font = FONT, width = 25) 
    E_E.grid(column = 2, columnspan = 2, row = 4, sticky = ("W")) 

    HP_L = ttk.Label(canvas, text = "Home Phone:", font = FONT) 
    HP_L.grid(column = 1, row = 5, sticky = ("E")) 
    HP_E = ttk.Entry(canvas, textvariable = home_phone, font = FONT, width = 12) 
    HP_E.grid(column = 2, row = 5, sticky = ("W")) 

    CP_L = ttk.Label(canvas, text = "Cell Phone:", font = FONT) 
    CP_L.grid(column = 1, row = 6, sticky = ("E")) 
    CP_E = ttk.Entry(canvas, textvariable = cell_phone, font = FONT, width = 12) 
    CP_E.grid(column = 2, row = 6, sticky = ("W")) 

    NP_L = ttk.Label(canvas, text = "# Of People:", font = FONT) 
    NP_L.grid(column = 1, row = 7, sticky = ("E")) 
    NP_E = Spinbox(canvas, from_ = 1, to = 10, increment = 1, textvariable = num_people, font = FONT, width = 2) 
    NP_E.grid(column = 2, row = 7, sticky = ("W")) 

    #bottom frame 
    frame_bottom = ttk.Frame(canvas) 
    frame_bottom.grid(column = 1, columnspan = 5, row = 8) 

    C_NAMES_L = Listbox(frame_bottom, listvariable = None, font = FONT, width = 12, height = 4, relief = "ridge") 
    C_NAMES_L.grid(column = 1, row = 1, rowspan = 3) 

    SCROLLBAR_3 = ttk.Scrollbar(frame_bottom, orient = VERTICAL, command = C_NAMES_L.yview) 
    SCROLLBAR_3.grid(column = 2, row = 1, rowspan = 3, sticky = ("N, S")) 
    C_NAMES_L.configure(yscrollcommand = SCROLLBAR_3.set) 

    NA_L = ttk.Label(frame_bottom, text = "Name & Age:", font = FONT) 
    NA_L.grid(column = 3, columnspan = 2, row = 1) 
    NA_E = ttk.Entry(frame_bottom, textvariable = name_age, font = FONT, width = 12) 
    NA_E.grid(column = 3, columnspan = 2, row = 2) 

    ADD_2 = ttk.Button(frame_bottom, text = "Add", command = None) 
    ADD_2.grid(column = 3, row = 3) 
    REMOVE_2 = ttk.Button(frame_bottom, text = "Remove", command = None) 
    REMOVE_2.grid(column = 4, row = 3) 

    for child in frame_bottom.winfo_children(): 
     child.grid_configure(padx = 5, pady = 5) 

    #back to canvas 
    CN_L = ttk.Label(canvas, text = "Campsite #:", font = FONT) 
    CN_L.grid(column = 1, row = 9, sticky = ("E")) 
    CN_E = ttk.Entry(canvas, textvariable = campsite, font = FONT, width = 5) 
    CN_E.grid(column = 2, row = 9, sticky = ("W")) 

    N_L = ttk.Label(canvas, text = "Notes:", font = FONT) 
    N_L.grid(column = 2, row = 10) 
    N_E = ttk.Entry(canvas, textvariable = notes, font = FONT, width = 40) 
    N_E.grid(column = 1, columnspan = 4, row = 11, sticky = ("E")) 


    for child in canvas.winfo_children(): 
     child.grid_configure(padx = 5, pady = 5) 

    for child in frame_main.winfo_children(): 
     child.grid_configure(padx = 5, pady = 5) 

    root.mainloop() 
work_area() 

Answer 1

如果你希望能夠滾動是在畫布上的小部件，你不能pack或grid那些在畫布上的小部件。您需要使用create_window方法將小部件嵌入到畫布中。

典型模式是使用pack或網格來排列框架中的小部件，然後使用create_window將單一框架添加到畫布。