What happens when a web block is refreshed with an Ajax Refresh?

When a web block is refreshed with an Ajax Refresh, the preparation logic of the web block is executed, and consequently, the web block updates its content based on this logic. This means that any variables or data that the block relies on will be re-evaluated, and the rendered output will reflect the most current state of the data.

This mechanism allows for a dynamic and efficient update of just the specific part of the user interface without requiring a complete page refresh. As a result, the experience is smoother for users, as it minimizes interruption while interacting with the web application.

Other options describe scenarios that do not accurately capture the purpose and functionality of an Ajax Refresh in OutSystems. The entire screen refresh would negate the benefits of Ajax functionality, and claiming that the web block remains unchanged would not reflect the intended use of the refresh. Ignoring the web block also doesn’t align with what occurs during a refresh, as it directly involves updating the block's state.