TKinter：根據下拉菜單中的文件名打開 html 文件

Question

我需要有關如何根據下拉菜單中選擇的文件名打開 html 文件的幫助。

我的問題：

當我運行我的代碼時，它會顯示圖像中的界面。

當我點擊“顯示數據”時，它 go 直接到其他瀏覽器。 它沒有將我的 html 文件顯示為附加圖像。

I just want, when I select a html file in dropdown list then click "Show Data", it will go and open my html file.

提前致謝

這是我的代碼：

---

from tkinter import *
from functools import partial
import os
import tkinter as tk
from tkinter import ttk
#import tkinter as tk
from tkinter import filedialog, messagebox, ttk
import pandas as pd
import webbrowser
from webbrowser import open as openlink
import urllib

def open(file_menu):
    filename = file_menu.get()
    webbrowser.open(filename)



def clear_data():
    tv1.delete(*tv1.get_children())
    return None



folder = os.path.realpath(r'C:\Users\Downloads\testing')
filelist = [fname for fname in os.listdir(folder)]

master = tk.Tk()
master.geometry('1200x800')
master.title('THB')

# Frame for TreeView
frame0 = tk.LabelFrame(master, text="Chapter",background="light grey")
frame0.place(height=500, width=1200, rely=0.0, relx=0.0)

optmenu = ttk.Combobox(frame0, values=filelist, state='readonly')
optmenu.pack(fill='x')

button_select = tk.Button(frame0, text="Show Data",
                          width=15,
                          height=2,
                          compound=tk.CENTER,
                          command=partial(open, optmenu))

button_select.place(relx=0.5, rely=0.5)
button_select.pack(side=tk.TOP)

# Frame for TreeView
frame1 = tk.LabelFrame(master, text="Data",background="light blue")
frame1.place(height=500, width=1200, rely=0.2, relx=0.0)


## Treeview Widget
tv1 = ttk.Treeview(frame1)
tv1.place(relheight=1, relwidth=1) # set the height and width of the widget to 100% of its container (frame1).

treescrolly = tk.Scrollbar(frame1, orient="vertical", command=tv1.yview) # command means update the yaxis view of the widget
treescrollx = tk.Scrollbar(frame1, orient="horizontal", command=tv1.xview) # command means update the xaxis view of the widget
tv1.configure(xscrollcommand=treescrollx.set, yscrollcommand=treescrolly.set) # assign the scrollbars to the Treeview Widget
treescrollx.pack(side="bottom", fill="x") # make the scrollbar fill the x axis of the Treeview widget
treescrolly.pack(side="right", fill="y") # make the scrollbar fill the y axis of the Treeview widget



master.mainloop()

Answer 1

它只需要一個小改動，您需要將file://鏈接傳遞給瀏覽器以將其作為本地文件打開。

否則瀏覽器會自動認為文件名是服務器，因此報錯無法打開！

固定部分def open(file_menu): :

def open(file_menu):
    filename = file_menu.get()

    open_in_browser_link = f"file://{os.path.join(folder, filename)}"
    print(open_in_browser_link)

    webbrowser.open(open_in_browser_link)

完整代碼：

from tkinter import *
from functools import partial
import os
import tkinter as tk
from tkinter import ttk
#import tkinter as tk
from tkinter import filedialog, messagebox, ttk
import pandas as pd
import webbrowser
from webbrowser import open as openlink
import urllib

def open(file_menu):
    filename = file_menu.get()

    open_in_browser_link = f"file://{os.path.join(folder, filename)}"
    print(open_in_browser_link)

    webbrowser.open(open_in_browser_link)



def clear_data():
    tv1.delete(*tv1.get_children())
    return None



folder = os.path.realpath(r'C:\Users\Downloads\testing')
filelist = [fname for fname in os.listdir(folder)]

master = tk.Tk()
master.geometry('1200x800')
master.title('THB')

# Frame for TreeView
frame0 = tk.LabelFrame(master, text="Chapter",background="light grey")
frame0.place(height=500, width=1200, rely=0.0, relx=0.0)

optmenu = ttk.Combobox(frame0, values=filelist, state='readonly')
optmenu.pack(fill='x')

button_select = tk.Button(frame0, text="Show Data",
                          width=15,
                          height=2,
                          compound=tk.CENTER,
                          command=partial(open, optmenu))

button_select.place(relx=0.5, rely=0.5)
button_select.pack(side=tk.TOP)

# Frame for TreeView
frame1 = tk.LabelFrame(master, text="Data",background="light blue")
frame1.place(height=500, width=1200, rely=0.2, relx=0.0)


## Treeview Widget
tv1 = ttk.Treeview(frame1)
tv1.place(relheight=1, relwidth=1) # set the height and width of the widget to 100% of its container (frame1).

treescrolly = tk.Scrollbar(frame1, orient="vertical", command=tv1.yview) # command means update the yaxis view of the widget
treescrollx = tk.Scrollbar(frame1, orient="horizontal", command=tv1.xview) # command means update the xaxis view of the widget
tv1.configure(xscrollcommand=treescrollx.set, yscrollcommand=treescrolly.set) # assign the scrollbars to the Treeview Widget
treescrollx.pack(side="bottom", fill="x") # make the scrollbar fill the x axis of the Treeview widget
treescrolly.pack(side="right", fill="y") # make the scrollbar fill the y axis of the Treeview widget



master.mainloop()

*注意：但是，請記住，如果您打開一些瀏覽器不支持的文件，他們可能會要求在您的計算機中使用其他應用程序打開。 示例：如果您嘗試打開 pdf。