Allow only one item in each drop target - Not working!

Math's sample makes it so that only one object can be dropped on a target ever.

I think what you are asking for is the attached sample. Each target becomes disabled only when the correct object is dropped on it. For each person, delete the other triggers. Then on slide 1.1, I added a rectangle and a trigger (only to Amande) that resets the target if the correct object is dragged off it.

Or if you don't want the object dragged off after it is dropped on the correct target, see slide 1.2. Again only Amande works.

Hi JC

I'm not seeing that behaviour in Preview - see this Peek.

If I drag another photo on the same spot, it removes the first picture, which returns to its original location and remains disabled, so I can’t do anything with it. 

This is expected behaviour of 'allow only one item' - it's doing the replacement when you drop another object onto it but I'm not finding that the item is disabled.  Perhaps I misunderstand the issue.

Hi Wendy,

No, I think I misunderstood the meaning of "allow only one item". It actually means "one item at a time"!  Thanks for clearing that up.

What I would like to do is make the object unmovable after it has been dropped on the correct target. Is that possible do you think?

How do you disable a drop target? I tried covering it with a transparent shape, changing its state to Disabled, but nothing seems to work.

This is what is happening. After having dragged an object to the correct drop target, this target is still active. If I drag another object on it, it replaces the correct one : https://360.articulate.com/review/content/7aaa6af6-afcc-4d1b-95f4-f7cc22e232fa/review

Hi Wendy,

Here is another video explaining more clearly, I hope, what I'm after. 

https://360.articulate.com/review/content/611fe0c7-7b55-4691-8a04-9672b1430a97/review

Essentially, I want to disable the drop target once the correct item has been dropped on it, so that the user will not be able to drop anything else on it.

I'm experiencing this exact same issue but as this has been left open ended, I'm wondering if a solution was found?

Hi, Andrew.

Since this discussion is from a few years ago, can you expand on what issues you're having? 

If you're comfortable sharing your .story file, I'm happy to take a look and help troubleshoot! 

The trick to solving this is adding a custom empty state to your droptargets. When dropping anything on it, trigger it to that empty/deleted state...and it will be removed from the drag-drop event and no other draggable objects can be placed upon it.

As seen here...

any idea where to find or make the 'Allow only one item in each drop target', option appear on my project ? couldn't find it !