Hide field in SP widget if dependent field is empty

[JJG_SNOW]

I have two fields on a SP widget, "Project" and "Service".

I would like the service field to only be visible if the project field is not empty.

Two fields:

HTML that I am using:

<br><label for="project">Project</label><br>
<sn-record-picker field="project" table="'pm_project'"   display-field="'short_description'" display-fields="'status,project_manager'" value-field="'sys_id'" search-fields="'short_description'" page-size="100" ></sn-record-picker>


<br><label for="service">Service</label><br>
<sn-record-picker field="service" table="'cmdb_ci_service'" display-field="'name'" display-fields="'owned_by,service_classification'" value-field="'sys_id'" search-fields="'name'" page-size="100"></sn-record-picker>

I do not have any client or server scripts for this widget yet.

[Edxavier Robert]

Hi @JJG_SNOW , 

You would need to create a catalog ui policy on the project variable. 

The create a catalog policy UI action

[JJG_SNOW]

This is a Service Portal widget, not a catalog item / record producer.