tkinter:无法进入入口小部件 [英] tkinter: can't enter into entry widget

问题描述

我不明白为什么我的代码中 rackGUI.py 下的输入框是静态的/不允许输入任何内容.我相信所有 Entry 对象都被正确实例化.我将文本变量指定为 StringVar() 的实例.我的直觉告诉我问题在于 create_button 实例化中的命令参数，但我不确定为什么.我认为通过设置 command = lambda:function 不会调用该函数.

I don't understand why the entry boxes under rackGUI.py in my code are static/won't allow anything to be entered. I believe all the Entry objects are instantiated correctly. I specified the textvariable as instances of the StringVar(). My gut tells me the problem lies in command argument in create_button instantiation but I'm not really sure why. I thought by setting command = lambda:function the function would not be called.

点击菜单中的'New'，main.py成功调用rackGUI.create()，成功调用input_form().单击按钮 'create_button' 成功调用 drawRack，它打印到外壳 'test'.我还添加了一个测试，其中我打印了每个输入框的值类型，即 print type(rack_name.get()) 并且这成功地返回了 'str' 类型.

Upon clicking 'New' in the menu, main.py successfully calls rackGUI.create() which successfully calls input_form(). Clicking the button 'create_button' successfully calls drawRack which prints to the shell 'test'. I also added a test where I printed the type of value for each entry box i.e., print type(rack_name.get()) and this successfully returns type 'str'.

所以主要的问题还是输入框是静态的.

So again the main problem is that the entry box is static.

下面是我的代码:

配置文件

"""
config.py
"""

import Tkinter as tk
import tkMessageBox as tkmb

#setup
root = tk.Tk()
root.title("TLA Database Tool")
frame = tk.Frame(height = 300, width = 250)
frame.pack()

main.py

#main.py
from config import *
import rackGUI

def createRackTemplate():
    rackGUI.create()
def loadRackTemplate():
    rackGUI.load()

menubar = tk.Menu(root)
filemenu = tk.Menu(menubar)
filemenu.add_command(label = "New", command = createRackTemplate)
filemenu.add_command(label = "Load", command = loadRackTemplate)
menubar.add_cascade(label = "File", menu = filemenu)

tkmb.showinfo("Welcome", "Under File click New to create a new rack template.\n\
Click load to load rack template.")
root.config(menu = menubar)
root.mainloop()

rackGUI.py

"""
rackGUI.py
"""
from config import *

def input_form():
    form_frame = tk.Frame(frame)
    form_frame.pack()

    tk.Label(form_frame, text = "Rack Template Name (e.g., Knox Type 4)").pack()
    rack_name = tk.Entry(form_frame, textvariable = tk.StringVar())
    rack_name.pack()
    tk.Label(form_frame, text = "Dimensions").pack()
    tk.Label(form_frame, text = "#rack rows").pack()
    num_rack_rows = tk.Entry(form_frame, textvariable = tk.StringVar())
    num_rack_rows.pack()
    tk.Label(form_frame, text = "#nodes per row").pack()
    num_slots = tk.Entry(form_frame, textvariable = tk.StringVar())
    num_slots.pack()

    create_button = tk.Button(form_frame, text = "Create!",\
              command = lambda: drawRack(rack_name, num_rack_rows, num_slots))
    create_button.pack()

def drawRack(rack_name, num_rack_rows, num_slots):
    print rack_name.get(), num_rack_rows.get(), num_slots.get()

def create():    
    input_form()

def load():
    pass

推荐答案

对于那些在我之后来到这里的人，我的解决方案最终是

For anyone who comes here after me, my solution ended up being

root.overrideredirect(True)

在 Windows 上工作正常，但在 Mac 上导致此文本输入问题.

Working fine on Windows, but causing this text entry problem on Mac.

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