https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/featurelayer-and-tables/m-p/1646551#M87563 <P><A href="https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-FeatureLayer.html#definitionExpression" target="_blank">https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-FeatureLayer.html#definitionExpression</A></P><P>You can filter a FeatureLayer by creating a definitionExpression.</P> Thu, 28 Aug 2025 17:11:15 GMT JeffreyThompson2 2025-08-28T17:11:15Z https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/featurelayer-and-tables/m-p/1646520#M87561 <P>Hi everyone,<BR />&nbsp;sorry for the newbie question.<BR />I have a FeatureService containing a FeatureLayer "Pipelines" with attributes: id, code, pressure ... and a Table "Report" with attributes: id, pipe_id, report_code, where 0 or N reports are listed for each "Pipeline" feature (relation via attribute pipe_id).</P><P>I'd like to know the best way to display on a map the "Pipelines" FeatureLayer, showing only the features with a report_code="X."</P><P>Does the relationship need to be defined in the FeatureService, or can it also be defined directly on the client side?</P><P>Keep in mind that there may be many features to load.</P><P>Thanks in advance for your help <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span></P> Thu, 28 Aug 2025 16:24:47 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/featurelayer-and-tables/m-p/1646520#M87561 MauroSantarossa 2025-08-28T16:24:47Z https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/featurelayer-and-tables/m-p/1646551#M87563 <P><A href="https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-FeatureLayer.html#definitionExpression" target="_blank">https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-FeatureLayer.html#definitionExpression</A></P><P>You can filter a FeatureLayer by creating a definitionExpression.</P> Thu, 28 Aug 2025 17:11:15 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/featurelayer-and-tables/m-p/1646551#M87563 JeffreyThompson2 2025-08-28T17:11:15Z