Use the render attribute to update the component
Impact area
Performance
Severity
High
Impact
Use the render attribute on Visualforce components to update the component without updating the entire page. Unnecessary full page reloads create a poor user experience.
Remediation
Use the render attribute on Visualforce components to update the component without updating the entire page.
References
See the Salesforce documentation article: Implementing Partial Page Updates with Command Links and Buttons.