I ended up in this painful situation myself i.e. deleting a long checklist. I was trying to choose "Hide completed items", instead i mistakenly pressed "Delete" which was right next and without asking for any confirmation my checklist was deleted! This is quite unbelievable! I am hoping there is some way to retrieve the checklist , but if there is none, i would request you to add that as a feature and redesign the UI in a way to avoid accidental deletion. Hope you are listening.
@Ketevan Kazakhashvili Depending on how long ago you added the checklist, and whether or not items have been completed, you can see the name of checklists added in the card actions, and also the name of items that were already completed, this might give you some of the information you need:
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events