我从网上获取了一个代码示例,它作为作为 Tk() 创建的根窗口的子窗口工作。当我尝试将其概括为 Toplevel() 的子级时,我收到一条错误,表明您无法将滚动条放入 Toplevel().Frame() 中。我不明白为什么会出现这种差异,因为 Tk() 和 Toplevel() 应该会产生相似的结果。
确切的错误消息是:
_tkinter.TclError: can't put .19084144 inside .18651952.19084112 or... can't put scrollbar inside Toplevel().Frame()
from tkinter import *
from tkinter.ttk import *
class columnList(object):
def __init__(self,parent,header,dataList):
self.tree = None
self._setup_widgets(parent,header)
self._build_tree(header,dataList)
def _setup_widgets(self,parent,header):
treeFrame = Frame(parent)
treeFrame.pack(fill='both', expand=True)
# create a treeview with a vertical scrollbar
self.tree = Treeview(treeFrame, columns=header, show="headings")
vsb = Scrollbar(orient="vertical",command=self.tree.yview)
self.tree.configure(yscrollcommand=vsb.set)
self.tree.grid(column=0, row=0, sticky='nsew', in_=treeFrame)
vsb.grid(column=1, row=0, sticky='ns', in_=treeFrame)
treeFrame.grid_columnconfigure(0, weight=1)
treeFrame.grid_rowconfigure(0, weight=1)
def _build_tree(self,header,dataList):
for col in header:
self.tree.heading(col, text=col.title())
for item in dataList:
self.tree.insert('', 'end', values=item)
# the test data ...
oil_header = ['oil', 'filter', 'cost']
oil_list = [
('synthetic', 'paper', '63.38') ,
('natural', 'reusable', '47.59') ]
car_header = ['car', 'repair', 'cost', 'code']
car_list = [
('Hyundai', 'brakes', '273.80', '34') ,
('Honda', 'light', '85.70', '78')]
root = Tk()
top = Toplevel()
# this succeeds
invoiceMenu = columnList(root,car_header,car_list)
# this fails as
# _tkinter.TclError: can't put .19084144 inside .18651952.19084112
# or... can't put scrollbar inside Toplevel().Frame()
oilChangeMenu = columnList(top,oil_header,oil_list)
root.mainloop()
我广泛使用了 stackoverflow,学到了很多东西,并且非常欣赏这里令人难以置信的丰富的专业知识。坦白说,我很尴尬,因为我无法弄清楚这一点。感谢您提供的任何帮助。
最佳答案
您的问题中没有足够的细节可以确定,但问题可能源于您在创建滚动条时没有给出 parent
参数。这意味着滚动条将始终在根窗口中创建。如果您随后尝试将其放置在另一个顶层,您将收到类似于您报告的错误。
关于Python ttk 滚动条错误作为 Toplevel() 的子级,但作为 Tk() 的子级工作,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19531717/