taskbox | SPA for team management | Single Page Application library

I'm learning Vue and set myself the task to create a to do list. To make it prettier, I wanted to style my checkboxes and used this link as a basis.

It works mostly fine: I can click on undone tasks to make them done and the other way round. However, if I click on a done task, the next done task (if there is any) gets the styling of an undone task (while correctly staying in the done department). It looks like this:

I can't figure out why this is happening. Can you? Thanks for any help!

Here is my code:

The code should open a to-do window in which tasks can be specified in a text field. These are stored in a VBox as a checkbox. If the CheckBox are marked as "checked", they will be removed from the list. However, these should be available in a new window using the "Done" button. The Done window can be opened, but the program cannot access the VBox doneBox. NPE is caused by: doneBox.getChildren().add(l); in Controller1

Are there any solutions for this problem?

Error message:

I have listviewBuilder , I want sorting my listview based on DateCreate with this code

taskList.sort((a, b) => -a.dateCreate.compareTo(b.dateCreate));

Everything is fine, i can see my list Sort (Descending) based on DateCreate, But the problem is everytime i delete/update the list, the action is wrong index!

If you see in Failed gif , I want deleted index 0 , But index 1 is deleted. If without Sort list is fine.

I surely passing right index, because in Working gif, i can successfully delete right index.

How can i fix this ?

I have this Javascript:

I'm currently working on a checklist program and I want to move the newly checked item of a CheckedListBox to a normal ListBox, but the item in the CheckedListBox doesn't get destroyed and it only adds the text to the normal ListBox when you uncheck the item again.

I have already tried to use a foreach statement to get all checked items in the CheckedListBox.

This is my first real Python project. I am currently developing a GUI in Tkinter that allows the user to select Tasks and CVs to automatically compile documents using standard predefined task and CV texts from a database.

I have created two "Add" buttons in the main window to add Tasks and CVs that show a popup Listbox that allow the user to select the Tasks and CVs they want to have included in the commercial proposal. I have managed to create the popup window as a separate Class and it stores the selected Tasks in a list, but now I need to pass the list with the selected items to the Listbox in the main window when the user clicks the Select button in the popup window, but I cannot get my head around on how to do that.

I have researched on different fora and watched a variety of Youtube videos, but all focus on entry popups or some sort.

This is the code for the main window:

I want to make ToDoList App. After successfully adding task to do (which contains checkbox, JLabel and date, all putted in a box) i want to remove them dynamically. With adding it's not problem but when i try to remove (ater clicking checked in checkbox) it works only once. Then it either removes not once which are intended or not removing them at all. I am not sure why it's not working so I paste all code below.

I am unable to autofocus the input tag rendered in this component. What am I missing here?