How to handle required fields in WD4A

[AlexGiguere]

Hi, is there a method or and option to handle required fields in WD4A before and action, without having to get the node context and check all the required attributes manually.

I can see that when using the component usage for select options, when you click on search, it does that kind of validation, it blocks you until you complete the required fields,

thanks

Alex

[thomas_jung · Accepted solution]

Yes there is an SAP supplied ultility class that will check for required fields for you. cl_wd_dynamic_tool=>check_mandatory_attr_on_view. Call this from the WDDOBEFOREACTION.

data l_view_controller            type ref to if_wd_view_controller.
  l_view_controller = wd_this->wd_get_api( ).
  cl_wd_dynamic_tool=>check_mandatory_attr_on_view( view_controller = l_view_controller ).

[AlexGiguere · Accepted solution]

thanks, it solved my problem

Alex

[AlexGiguere · Accepted solution]

Thomas, this solution seems to cause a bug when using method subscribe_to_button_event,

I create a new post for that, please check it and let me know!

thanks

Alex