Widget to Level Blueprint communication (Detect button click)

Hi guys!

I have some problem with blueprint communication. I want to detect when button clicked in my level blueprint. I made something but didn’t works. I used Event Dispatcher but result is unsuccessfully. I’m trying to solve it for 3 days.

https://forums.unrealengine.com/attachment.php?attachmentid=47690&d=1436792117

Okay I solved it. Here is my new blueprint: