https://community.esri.com/t5/arcobjects-sdk-questions/how-to-get-the-definition-query-of-a-layer-in/m-p/1285608#M20587 <P>A little new to ArcObject's SDK... Is this the place to create the post?<BR />Need to access the definition query of a layer that the user created in the ArcMap application (if the layer exists) from an addin tool's code. Need to access this definition query and apply it to a search/query.</P><P>Is there a sample code/example for this?</P> Thu, 04 May 2023 12:24:27 GMT Gurunara 2023-05-04T12:24:27Z https://community.esri.com/t5/arcobjects-sdk-questions/how-to-get-the-definition-query-of-a-layer-in/m-p/1285608#M20587 <P>A little new to ArcObject's SDK... Is this the place to create the post?<BR />Need to access the definition query of a layer that the user created in the ArcMap application (if the layer exists) from an addin tool's code. Need to access this definition query and apply it to a search/query.</P><P>Is there a sample code/example for this?</P> Thu, 04 May 2023 12:24:27 GMT https://community.esri.com/t5/arcobjects-sdk-questions/how-to-get-the-definition-query-of-a-layer-in/m-p/1285608#M20587 Gurunara 2023-05-04T12:24:27Z https://community.esri.com/t5/arcobjects-sdk-questions/how-to-get-the-definition-query-of-a-layer-in/m-p/1287711#M20588 <P>You have to query inteface to IFeatureLayerDefinition2:</P><P>&nbsp;</P><LI-CODE lang="c">IFeatureLayerDefinition2 ifld = (IFeatureLayerDefinition2)layer; string defquery = ifld.DefinitionExpression;</LI-CODE><P>&nbsp;</P><P>Brent Hoskisson</P><P>&nbsp;</P> Wed, 10 May 2023 14:36:01 GMT https://community.esri.com/t5/arcobjects-sdk-questions/how-to-get-the-definition-query-of-a-layer-in/m-p/1287711#M20588 BrentHoskisson 2023-05-10T14:36:01Z