框架的 Tkinter 滚动条
问题：
为框架创建一个垂直滚动条当框架的内容超过其高度时自动激活，允许在框架内显示多个标签
实现：
下面是封装可滚动框架的示例代码：
# VerticalScrolledFrame class allows vertical scrolling within a frame
class VerticalScrolledFrame(ttk.Frame):
def __init__(self, parent, *args, **kw):
# Create a canvas and vertical scrollbar
vscrollbar = ttk.Scrollbar(self, orient=VERTICAL)
vscrollbar.pack(fill=Y, side=RIGHT, expand=FALSE)
canvas = tk.Canvas(self, bd=0, highlightthickness=0,
yscrollcommand=vscrollbar.set)
canvas.pack(side=LEFT, fill=BOTH, expand=TRUE)
vscrollbar.config(command=canvas.yview)
# Create an inner frame for content, scrollable within the canvas
self.interior = interior = ttk.Frame(canvas)
interior_id = canvas.create_window(0, 0, window=interior,
anchor=NW)
# Synchronize frame and canvas dimensions
def _configure_interior(event):
size = (interior.winfo_reqwidth(), interior.winfo_reqheight())
canvas.config(scrollregion="0 0 %s %s" % size)
if interior.winfo_reqwidth() != canvas.winfo_width():
canvas.config(width=interior.winfo_reqwidth())
interior.bind('<Configure>', _configure_interior)
def _configure_canvas(event):
if interior.winfo_reqwidth() != canvas.winfo_width():
canvas.itemconfigure(interior_id, width=canvas.winfo_width())
canvas.bind('<Configure>', _configure_canvas)此实现的优点：
用法：
# Example usage
app = tk.Tk()
my_frame = VerticalScrolledFrame(app)
my_frame.pack()
for i in range(50):
ttk.Label(my_frame.interior, text=i).grid(row=i, column=0) # Grid method ensures proper layout of labels
app.mainloop()以上是如何在 Tkinter 中创建自动激活的可滚动框架？的详细内容。更多信息请关注PHP中文网其他相关文章！
