笔记本选项卡中的 tkinter 树视图小部件

Question

我无法在我的选项卡小部件上显示我的树视图小部件。 我不认为我在课堂上以正确的方式应用它。

关于我应该如何继续，有什么好的建议吗？

我感谢任何帮助:)

我在代码中注释掉了树视图小部件开始和结束的地方。 ................................. 我的代码如下所示：

from tkinter import *
from tkinter import ttk
import tkinter
class App(ttk.Frame):
def __init__(self, root=None):
ttk.Frame.__init__(self, root)
self.style = ttk.Style(root)
self.style.theme_use('vista')
root.geometry("800x900")
self.label1 = Label(root, text="HELLO")
self.label1.grid(row=123, column=0)
self.emptylabel2 = Label(root)
self.emptylabel2.grid(row=124, column=0, columnspan=10)
# gives weight to the cells in the grid
rows = 50
while rows < 200:
root.rowconfigure(rows, weight=1)
root.columnconfigure(rows, weight=1)
rows += 1
# Defines and places the notebook widget
nb2 = ttk.Notebook(root)
nb2.grid(row=125, column=0, columnspan=200, rowspan=100, sticky='NESW')
# ============= Page - 40 =============
page40 = ttk.Frame(nb2)
nb2.add(page40, text='xxxx')
self.msg = ttk.Label(page40, text="LOL LOL LOL LOL")
self.msg.grid(row=1, column=0, rowspan=10, columnspan=10)
# Tree widget starts here
tree_columns = ("file", "file", "file", "file")
tree_data = [
("1", "1", "1", "1"),
("2", "2", "2", "2"),
("3", "3", "3", "3"),
("4", "4", "4", "4"),
]
def sortby(self, tree, col, descending):
"""Sort tree contents when a column is clicked on."""
# grab values to sort
data = [(tree.set(child, col), child) for child in tree.get_children('')]
# reorder data
data.sort(reverse=descending)
for indx, item in enumerate(data):
tree.move(item[1], '', indx)
# switch the heading so that it will sort in the opposite direction
tree.heading(col,
command=lambda col=col: sortby(tree, col, int(not descending)))
self.container = ttk.Frame(self, page40)
self.container.grid(row=1, column=1, rowspan=90, columnspan=190)
self.tree = ttk.Treeview(columns=tree_columns, show="headings")
vsb = ttk.Scrollbar(orient="vertical", command=self.tree.yview)
hsb = ttk.Scrollbar(orient="horizontal", command=self.tree.xview)
self.tree.configure(yscrollcommand=vsb.set, xscrollcommand=hsb.set)
self.tree.grid(column=0, row=0, sticky='nsew', in_=self.container)
vsb.grid(column=1, row=0, sticky='ns', in_=self.container)
hsb.grid(column=0, row=1, sticky='ew', in_=self.container)
self.container.grid_columnconfigure(0, weight=1)
self.container.grid_rowconfigure(0, weight=1)
def _build_tree(page40, self):
for col in tree_columns:
self.tree.heading(page40, col, text=col.title(),
command=lambda c=col: sortby(self.tree, c, 0))
self.tree.column(col, width=tkinter.font.Font().measure(col.title()))
for item in tree_data:
self.tree.insert('', 'end', values=item)
# adjust columns lenghts if necessary
for indx, val in enumerate(item):
ilen = tkinter.font.Font().measure(val)
if self.tree.column(tree_columns[indx], width=None) < ilen:
self.tree.column(tree_columns[indx], width=ilen)
page50 = ttk.Frame(nb2)
nb2.add(page50, text='yyyy')    
if __name__ == "__main__":
root = Tk()
app = App(root)
root.title("test")
root.mainloop()

Answer 1

我找到了答案，我自己:D对不起之前的长代码。 我将树视图重新创建为更简单的解决方案，现在它可以工作了。:)

self.tree = ttk.Treeview(page40)
self.tree["columns"]=("one","two")
self.tree.column("one", width=100 )
self.tree.column("two", width=100)
self.tree.heading("one", text="coulmn A")
self.tree.heading("two", text="column B")
self.tree.insert("", 0, text="Line 1", values=("1A", "1b"))
self.id2 = self.tree.insert("", 1, "dir2", text="Dir 2")
self.tree.insert(self.id2, "end", "dir 2", text="sub dir 2", values=("2A", "2B"))
# Alternatively
self.tree.insert("", 3, "dir3", text="Dir 3")
self.tree.insert("dir3", 3, text=" sub dir 3", values=("3A", " 3B"))
self.tree.grid(row=2, column=0, rowspan=75, columnspan=150)