How To Fix SWDP_WB_TOOL572 - &1: onSelect and onLeadSelect must not be used at the same time

SAP Error Message - Details

• Message type: E = Error

• Message class: SWDP_WB_TOOL - Web Dynpro: Messages for Workbench Tools

• Message number: 572

• Message text: &1: onSelect and onLeadSelect must not be used at the same time

What causes this issue?

Events onSelect and onLeadSelect cannot be used at the same time.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

The onSelect event enables all the selection changes to be caught. Use
it in addition to LeadSelection to respond to Single and
MultipleSelection changes. If it suffices to respond to LeadSelection
changes, the onLeadSelect event should be used for performance reasons.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWDP_WB_TOOL572 - &1: onSelect and onLeadSelect must not be used at the same time ?

  The SAP error message SWDP_WB_TOOL572 indicates that there is a conflict in the usage of the onSelect and onLeadSelect event handlers in your Web Dynpro application. This error typically arises when both event handlers are defined for the same UI element, which is not allowed.
  Cause:
  
  The error occurs because both onSelect and onLeadSelect are being used simultaneously for a single UI element (like a table or tree). These two event handlers are designed to handle selection events, but they serve different purposes and cannot coexist on the same element.
  
  Solution:
  To resolve this error, you need to choose one of the two event handlers based on your application's requirements:
  
  
  Remove one of the event handlers:
  
  If you decide that you only need one of the handlers, go to the UI element in the Web Dynpro component and remove the unnecessary event handler.
  For example, if you only need to handle the selection of a single item, you might choose to keep onSelect and remove onLeadSelect.
  
  
  
  Modify the logic:
  
  If you need functionality from both handlers, consider restructuring your logic. You might need to handle the selection in a different way, such as using a single event handler that can manage the logic for both scenarios.
  
  
  
  Related Information:
  
  
  onSelect: This event is triggered when a user selects an item in a UI element (like a table). It is typically used for handling single selections.
  
  
  onLeadSelect: This event is triggered when a user selects a lead selection in a UI element. It is often used in scenarios where multiple selections are allowed, and it focuses on the primary selection.
  
  
  Web Dynpro Documentation: For more detailed information on event handling in Web Dynpro, refer to the official SAP documentation or the Web Dynpro ABAP programming guide.
  
  
  Debugging: If you are unsure where the conflict is occurring, you can use the Web Dynpro component's view editor to check the event handlers assigned to your UI elements.
  
  
  By following these steps, you should be able to resolve the error and ensure that your Web Dynpro application functions as intended.