使用组合框值填充滚动文本窗口python

问题描述

我正在尝试用 Python 构建一个 GUI，其中滚动的文本窗口填充有从组合框中选择的一个或多个值。

例如，如果组合框中的值是 1、2、3、4。如果我点击 1，它会出现在滚动的文本窗口中，然后如果我点击 2，它也会被添加到滚动的文本窗口中，而不会删除之前的选择.

有人可以帮忙吗？下面是我到目前为止的代码。

#Library imports
from tkinter import *
from tkinter.ttk import *
from tkinter import scrolledtext

#window geometry
window = Tk()
window.geometry('180x220')
window.title('DFC Selector')

#Window Text
lbl = Label(window,text = "Select DFC",font = ("Arialbold",11))
lbl.grid(column=0,row=0)

# Read values from file
fcode = []
with open('DFCs.txt') as inFile:
    fcode = [line for line in inFile]
    fcode = sorted(fcode)

#Combo Box
combo = ComboBox(window,width=25)
combo['values']= (fcode)
combo.current(1) 
combo.grid(column=0,row=2)

#Text window
txt = scrolledtext.ScrolledText(window,command=clicked,width=20,height=10)
txt.grid(pady=15,padx=10,column=0,row=3)

#Fault code selection to text window
def clicked():
    txt.configure(text=combo.get)

#Start GUI
window.mainloop()

解决方法

使用txt.insert()在Text中插入文本，使用end作为参数插入到最后

from tkinter import *
from tkinter.ttk import *
from tkinter import scrolledtext


def clicked(event):
    txt.insert("end",var.get()+'\n')

#window geometry
window = Tk()
window.geometry('180x220')
window.title('DFC Selector')

#Window Text
lbl = Label(window,text = "Select DFC",font = ("Arialbold",11))
lbl.pack()

# Read values from file
fcode = ['Hello','Random','BSAE']

var = StringVar()
#var.trace('w',insert)

#Combo box
combo = Combobox(window,width=25,textvariable=var,state="readonly")
combo.bind("<<ComboboxSelected>>",clicked)
combo['values']= (fcode)
combo.current(1) 
combo.pack()

#Text window
txt = scrolledtext.ScrolledText(window,width=20,height=10)
txt.pack()

#Fault code selection to text window


#Start GUI
window.mainloop()