将选择列表框顶部窗口传递到主窗口

时间:2019-01-21 02:13:52

标签: python tkinter

这是我第一个真正的Python项目。我目前正在Tkinter中开发GUI,允许用户选择任务和CV,以使用来自数据库的标准预定义任务和CV文本自动编译文档。

我已经在主窗口中创建了两个“添加”按钮,以添加显示弹出列表框的任务和CV,这些列表框允许用户选择他们想要包含在商业提案中的任务和CV。我已经设法将弹出窗口创建为单独的类,并且将选定的任务存储在列表中,但是现在我需要在用户单击菜单中的“选择”按钮时,将带有选定项的列表传递到主窗口中的列表框。弹出窗口,但我无法确定该怎么做。

我研究了不同的论坛,并观看了各种Youtube视频,但所有视频都集中在条目弹出式窗口或某种形式上。

这是主窗口的代码:

from tkinter import *
from Add import *

# make main window
root = Tk()

theLabel = Label(root, text="ProposalBuilder")
theLabel.grid(row=0)

# make frames
taskFrame = Frame(root)
taskFrame.grid(row=1, column=0)

CVFrame = Frame(root)
CVFrame.grid(row=1, column=1)

buildFrame = Frame(root)
buildFrame.grid(row=2, columnspan=2)

# add labels to frames
taskLabel = Label(taskFrame, text="Tasks")
taskLabel.pack()

CVLabel = Label(CVFrame, text="CVs")
CVLabel.pack()

# add listboxes to frames
scrollTask = Scrollbar(taskFrame, orient=VERTICAL)
listTask = Listbox(taskFrame, selectmode=MULTIPLE, yscrollcommand=scrollTask.set)
scrollTask.config(command=listTask.yview)
scrollTask.pack(side=RIGHT, fill=Y)
listTask.pack()

scrollCV = Scrollbar(CVFrame, orient=VERTICAL)
listCV = Listbox(CVFrame, selectmode=MULTIPLE, yscrollcommand=scrollCV.set)
scrollCV.config(command=listCV.yview)
scrollCV.pack(side=RIGHT, fill=Y)
listCV.pack()

# add commands to buttons
def addTask():
    taskBox = Add('C:\\Users\\204703\\ProposalBuilder\\Database')
    sel_test = taskBox.selection

def addCV():
    CVBox = Add('C:\\Users\\204703\\ProposalBuilder\\Database')

# add buttons to frames
buttonAddTask = Button(taskFrame, text="Add", command=addTask)
buttonAddTask.pack(fill=X)
buttonDelTask = Button(taskFrame, text="Delete")
buttonDelTask.pack(fill=X)
buttonUpTask = Button(taskFrame, text="Up")
buttonUpTask.pack(fill=X)
buttonDownTask = Button(taskFrame, text="Down")
buttonDownTask.pack(fill=X)

buttonAddCV = Button(CVFrame, text="Add", command=addCV)
buttonAddCV.pack(fill=X)
buttonDelCV = Button(CVFrame, text="Delete")
buttonDelCV.pack(fill=X)
buttonUpCV = Button(CVFrame, text="Up")
buttonUpCV.pack(fill=X)
buttonDownCV = Button(CVFrame, text="Down")
buttonDownCV.pack(fill=X)

buttonBuild = Button(buildFrame, text="Build Proposal")
buttonBuild.pack(side=RIGHT)

root.mainloop()

这是我为弹出窗口创建的单独类的代码:

from tkinter import*
from os import *

class Add:
    def __init__(self, path):
        # the slected tasks
        self.selection = []
        # make a frame
        top = Toplevel()

        # get file names from the directory (path) and save in list
        self.path = path
        self.dirList = listdir(self.path)

        # add listbox to frames and populate with file names
        self.scrollList = Scrollbar(top, orient=VERTICAL)
        self.listbox = Listbox(top, selectmode=MULTIPLE, yscrollcommand=self.scrollList.set)
        self.scrollList.config(command=self.listbox.yview)
        self.scrollList.pack(side=RIGHT, fill=Y)
        for item in self.dirList:
            self.listbox.insert(END,item)
        self.listbox.pack()

        # add buttons to frame
        self.selectButton = Button(top, text="Select", command=self.select)
        self.selectButton.pack()

        self.quitButton = Button(top, text="Quit", command=top.destroy)
        self.quitButton.pack()

    # identify selected rows and return a list with the selection
    def select(self):
        selectedRows = self.listbox.curselection()
        for item in selectedRows:
                self.selection.append(self.dirList[item])
        print(self.selection)
        return self.selection

1 个答案:

答案 0 :(得分:0)

  

问题:将带有选定项目的列表传递到主窗口中的列表框

您需要主窗口列表框的引用。

我展示了如何使用listTask

  1. 扩展您的__init__以接受引用target_listbox

    class Add:
        def __init__(self, target_listbox, path):
            self.target_listbox = target_listbox
    
  2. 将所选项目插入.target_listbox
    注意:您的return self.selection没有用,Button.command 无法处理退货

    def select(self):
        selectedRows = self.listbox.curselection()
        for item in selectedRows:
            self.target_listbox.insert(tk.END, self.dirList[item])
    
  3. 将引用listTask传递到Add(...

    taskBox = Add(listTask, ...)