I got the point vletm.
Actually, I wasn't on my system last night and working on this website from the cellphone is very cumbersome.
The lagging was so much that I had to keep it at the shortest. My apologies.
I actually intended to write this: "VBA Beginner: validate if all items are selected in listbox".
Anyway, I'll keep this in mind going forward. is there a way I can change the title now? if so, please let me know so that I can change.
Nevertheless, thanks for the feedback.
I have attached the file wherein there are 2 userforms.
When I open the file, in sheet 1 click the button "Show form" and the main form would be launched.
The main form gets loaded which has the optionbutton Named "Task Completed".
When the user clicks on task completed, a listbox is loaded to verify that all the checkpoints in the task are completed.
Until this, all is happening well.
The part where I am stuck is,
As soon as all the checkpoints in the listbox are selected, the listbox should disappear and the option button value to be set to true.
Unless all the items in the listbox are selected, the option button value would be False.
Please advise.