[英]tkinter - Scrollbar in Canvas not working
我搜索了堆栈溢出,但大多数解决方案似乎对我不起作用或答案不够清楚,我不知道我应该在哪里/如何使用代码。 AddSubject框架中的水平滚动条由于某种原因无法正常工作。 如何让水平滚动条工作?
这是我的代码:
import tkinter as tk
from tkinter import ttk
import tkinter.scrolledtext as tks
class Program(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
tk.Tk.iconbitmap(self, default = "")
tk.Tk.wm_title(self, "")
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (SubjectHome, AddSubject):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row = 0, column = 0, sticky = "nsew")
self.show_frame(SubjectHome)
def show_frame(self,cont):
frame = self.frames[cont]
frame.tkraise()
class SubjectHome(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
ttk.Style().configure("TButton", padding=6, relief="flat", background="#ccc")
name = tk.Label(self, text = "User: FirstName + LastName")
name.pack(anchor="ne")
pagename = tk.Label(self, text = "Subject Menu")
pagename.pack(anchor="n")
self.innerFrame = tk.Frame(self, bg="red")
self.innerFrame.place(relx=.5, rely=.5, anchor="c")
view = ttk.Button(self.innerFrame, text = "View Subjects", command = lambda: controller.show_frame(ViewSubject))
view.grid(row=0, sticky="W"+"E")
add = ttk.Button(self.innerFrame, text = "Add Subjects", command = lambda: controller.show_frame(AddSubject))
add.grid(row=1, sticky="W"+"E")
class AddSubject(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
name = tk.Label(self, text = "User: FirstName + LastName")
name.pack(anchor="ne")
pagename = tk.Label(self, text = "Add Subjects")
pagename.pack(anchor="n")
self.innerFrame = tk.Frame(self)
self.innerFrame.place(relx=.5, rely=.5, anchor="c")
canvas = tk.Canvas(self.innerFrame)
self.firstFrame = tk.Frame(canvas)
self.firstFrame.pack(anchor="n")
info = tk.Label(self.innerFrame, text = "Information...\n Information....")
info.pack()
for x in range(5):
pagename = tk.Label(self.firstFrame, text = "Unit Name")
pagename.grid(row=0, column=x)
self.text = tks.ScrolledText(self.firstFrame, width=50)
self.text.grid(row=1, column=x ,sticky="E")
scrollbar = tk.Scrollbar(self.innerFrame, orient="horizontal", command=canvas.xview)
canvas.configure(xscrollcommand=scrollbar.set)
scrollbar.pack(side="bottom", fill="x")
canvas.pack(side="left", fill="both", expand=True)
back = ttk.Button(self.innerFrame, text = "Back", command = lambda: controller.show_frame(SubjectHome))
back.pack(anchor="sw")
next = ttk.Button(self.innerFrame, text = "Next")
next.pack(anchor="se")
app = Program()
app.state('zoomed')
app.mainloop()
要使窗口小部件在画布上可滚动,必须使用create_window将其添加到画布中。 如果您调用pack
或grid
或place
将小部件放在画布中,它们将不会滚动。
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