Data binding/updating between parent and child using tag in Polymer1.0

Question

I have a slider element that contains list of slides and a img to show hovered slide as shown below. I am binding currentImage between custom

Answer 1

you are not setting currentImage to custom-slider but only to custom-slide. So inside custom-slider you won't fint that property. That's the problem propably you are looking for.

edit your code to:

EDIT

The problem is that you can't do these things in index.html you need to wrap it into another file that will store currentImage property and notify about changes. So the only thing i did, was to wrap everything you had in index.html into new file which I called wrapper-elements (change it to watever you want) I also edited something to make it more simple, so don't do ctrl+c and ctrl+v. Just copy wrapper-elements element only.

Here is working plnkr: https://plnkr.co/edit/eElf4H6CQOVhahShyjBF?p=preview (I hope it's right link. I have never did something in plnkr)