Hi Christmas,
Thank you for reaching out on the Syncfusion Essential Studio JSP forum regarding the AutoComplete control's context menu behavior.
We would like to inform you that our EJ1 JSP products, including the AutoComplete control, have been marked as retired since our Volume 4 SP release (v20.4.0.44). As a result, there will be no further active support, bug fixes, or enhancements for EJ1 controls. For more details, please refer to the following resources:
Release Notes: https://help.syncfusion.com/js/release-notes/v20.4.0.44?type=all
KB: https://support.syncfusion.com/kb/article/15550/syncfusion-ej1-products-have-been-marked-as-retired
We recommend transitioning to our EJ2 components, which offer enhanced features, improved performance, and compatibility with EJ1 components. For your reference, here are relevant resources to explore EJ2:
Compatibility documentation: https://help.syncfusion.com/js/compatibility-ej1-ej2
Feature tour: https://www.syncfusion.com/javascript-ui-controls
EJ2 documentation: Es5 getting started with EJ2 JavaScript Auto complete control | Syncfusion
EJ2 Demo: AutoComplete · Default Functionalities · Syncfusion JavaScript (ES5) UI Controls
API reference: JavaScript (ES5) AutoComplete API control - Syncfusion
To better assist you, could you please confirm the following:
Please review the shared resources and let us know if you need further assistance.