將tkinter listbox結果返回給主腳本
[英]Return tkinter listbox result to main script
I am new to tkinter/python and I fear my question is so simple, no one was dumbed it down to this point. I have created the following script:
我是tkinter / python的新手,我擔心我的問題很簡單,到目前為止還沒有人對此感到愚蠢。我創建了以下腳本:
import tkinter as tk
from tkinter import *
class example(tk.Frame):
#Initialize class
def __init__(self,parent):
tk.Frame.__init__(self, parent)
self.listbox = tk.Listbox(self,selectmode=SINGLE)
self.listbox.pack(expand=True)
self.button = tk.Button(self,text="Confirm Selection",command=self.selection)
self.button.pack(side="bottom",fill="both",expand=True)
self.string = tk.StringVar()
#Add variables
for i in ['A','B','C']:
self.listbox.insert(END,i)
#Selection method
def selection(self):
index = self.listbox.curselection()[0]
name = ['A','B','C'][index]
self.string = name
print(self.string)
#Main script
root = tk.Tk()
example(root).pack(expand=True)
root.mainloop()
I am able to print the result of my list selection within
我能夠打印出列表選擇的結果
def selection(self)
However, I do not know how to pull out and use further as the script continues to run. For example, if my #Main script were to be continued, I would like to do something like:
但是,我不知道如何在腳本繼續運行時拉出並進一步使用。例如,如果要繼續我的#Main腳本,我想做的事情如下:
letter = '''results of listbox selection'''
As a bonus, I am having difficulty destroying the listbox, with only the list and the button being removed for the methods I have tried.
作為獎勵,我很難銷毀列表框,只有列表和按鈕被刪除我嘗試過的方法。
Thanks everyone
1 个解决方案
#1
0
I have resolved my issue. I was unaware of how to properly use the wait_window function to resume the script once a value is returned.
我已經解決了我的問題。一旦返回值,我不知道如何正確使用wait_window函數來恢復腳本。
I have modified substantially and the below fits my purposes:
我已經進行了大幅修改,以下內容符合我的目的:
`
from tkinter import *
`來自tkinter import *
class ListBoxChoice(object):
def __init__(self, master=None, title=None, message=None, list=[]):
self.master = master
self.value = None
self.list = list[:]
self.modalPane = Toplevel(self.master)
self.modalPane.transient(self.master)
self.modalPane.grab_set()
self.modalPane.bind("<Return>", self._choose)
self.modalPane.bind("<Escape>", self._cancel)
if title:
self.modalPane.title(title)
if message:
Label(self.modalPane, text=message).pack(padx=1, pady=1)
listFrame = Frame(self.modalPane)
listFrame.pack(side=TOP, padx=5, pady=5)
scrollBar = Scrollbar(listFrame)
scrollBar.pack(side=RIGHT, fill=Y)
self.listBox = Listbox(listFrame, selectmode=SINGLE)
self.listBox.pack(side=LEFT, fill=Y)
scrollBar.config(command=self.listBox.yview)
self.listBox.config(yscrollcommand=scrollBar.set)
self.list.sort()
for item in self.list:
self.listBox.insert(END, item)
buttonFrame = Frame(self.modalPane)
buttonFrame.pack(side=BOTTOM)
chooseButton = Button(buttonFrame, text="Choose", command=self._choose)
chooseButton.pack()
cancelButton = Button(buttonFrame, text="Cancel", command=self._cancel)
cancelButton.pack(side=RIGHT)
def _choose(self, event=None):
try:
firstIndex = self.listBox.curselection()[0]
self.value = self.list[int(firstIndex)]
except IndexError:
self.value = None
self.modalPane.destroy()
def _cancel(self, event=None):
self.modalPane.destroy()
def returnValue(self):
self.master.wait_window(self.modalPane)
return self.value
self.modalPane.destroy()
if __name__ == '__main__':
root = Tk()
list = ['A','B','C']
returnValue = ListBoxChoice(root, "Pick Letter", "Pick one of these crazy random numbers", list).returnValue()
print(returnValue)'
The only issue I have now is am I getting 2 dialog boxes open when I run the script. I'm sure it has something to do with how I am binding everything, but still sorting.
我現在唯一的問題是,當我運行腳本時,我打開了2個對話框。我確定它與我如何綁定所有內容有關,但仍在排序。
Cheers
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