Example and Sample

Are there any code tutorials or code example or article for UI Elements Runtime,
I am trying to find simple example but without any success

Hi!

We have the UIElements sample window that is a great start: UIElements Samples Window (2019.2)
There is also the UIBuilder talk, that has more in-depth explanations: GitHub - Unity-Technologies/UIElementsUniteCPH2019RuntimeDemo: This is the project used in the Unite Copenhagen 2019 presentation: Building UI for games with the new UI Builder