如何使用 Tkinter 在输入框中显示所选文件路径

Question

我试图让用户点击“新建 Window”按钮打开一个新的 window，然后点击“浏览”按钮选择一个文件。然后文件路径应显示在输入框中。我的问题是我无法获取要显示的文件路径。这是我的代码：

import tkinter as tk
from tkinter import filedialog

class NewWindow(tk.Toplevel):
    def __init__(self, parent):
        super().__init__(parent)
        self.title('New Window')
        self.file_var = tk.StringVar()
        txt_box = tk.Entry(self,
                        textvariable = self.file_var.get())
        txt_box.grid(column = 2, row = 1, padx = 10, pady = 10)
        btn = tk.Button(self,
                        text = 'Browse',
                        command=self.getFilePath)
        btn.grid(column = 1, row = 1, padx = 10, pady = 10)

    def getFilePath(self):
        file_path = filedialog.askopenfilename(initialdir = "/",
                                           title = "Select a file")
        self.file_var.set(file_path)
        
class App(tk.Tk):
    def __init__(self):
        super().__init__()
        self.title('Main Window')
        btn = tk.Button(self,
                        text='New Window',
                        height = 3,
                        width = 12,
                        command=self.open_new_window)
        btn.grid(column = 1, row = 1, padx = 10, pady= 10)
        
    def open_new_window(self):
        window = NewWindow(self)
        window.grab_set()


if __name__ == "__main__":
    app = App()
    app.mainloop()

感谢您的帮助！

Answer 1

从 textvariable=self.file._var.get()

中删除 get()

应该是

txt_box = tk.Entry(self,textvariable = self.file_var)

如何使用 Tkinter 在输入框中显示所选文件路径

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