topic Checking if related layer is still on map in Web AppBuilder Custom Widgets Questions https://community.esri.com/t5/web-appbuilder-custom-widgets-questions/checking-if-related-layer-is-still-on-map/m-p/797479#M4818 <HTML><HEAD></HEAD><BODY><P>Hi, when a user add a map service with related table and then remove it, the related table doesn't get removed. So I am trying to clean up the related table.&nbsp;</P><P></P><P>From the related table relationship, is it possible to determine if the related layer is still on the map? The unique <STRONG style="color: #4d4d4d; font-weight: bold;">relatedTableId&nbsp;</STRONG>is the layer id and how can I determine if it is still on the map. I am trying to avoid having to query the server for performance reason. (Alot of related tables to remove)</P></BODY></HTML> Sun, 18 Oct 2020 11:06:32 GMT VictorTey 2020-10-18T11:06:32Z Checking if related layer is still on map https://community.esri.com/t5/web-appbuilder-custom-widgets-questions/checking-if-related-layer-is-still-on-map/m-p/797479#M4818 <HTML><HEAD></HEAD><BODY><P>Hi, when a user add a map service with related table and then remove it, the related table doesn't get removed. So I am trying to clean up the related table.&nbsp;</P><P></P><P>From the related table relationship, is it possible to determine if the related layer is still on the map? The unique <STRONG style="color: #4d4d4d; font-weight: bold;">relatedTableId&nbsp;</STRONG>is the layer id and how can I determine if it is still on the map. I am trying to avoid having to query the server for performance reason. (Alot of related tables to remove)</P></BODY></HTML> Sun, 18 Oct 2020 11:06:32 GMT https://community.esri.com/t5/web-appbuilder-custom-widgets-questions/checking-if-related-layer-is-still-on-map/m-p/797479#M4818 VictorTey 2020-10-18T11:06:32Z