topic How to get attribute driven symbology to work with hex values without the '#' in ArcGIS Pro Questions https://community.esri.com/t5/arcgis-pro-questions/how-to-get-attribute-driven-symbology-to-work-with/m-p/27469#M999 <HTML><HEAD></HEAD><BODY><P>I am trying to use attribute driven symbology to define the colours of bus routes in a GTFS in ArcGIS Pro. The data contains a field of hex values without the '#' in front of the value (ie&nbsp;007F5A) which doesn't work with&nbsp;setting colour properties in attribute driven symbology (I made a copy of the dataset and calculated a new field adding a '#' in front of the hex values and it worked so I know I am doing the correct process).</P><P>I am looking for ways I can get this to work without editing the dataset (as I don't have permissions) or copying the dataset into my own database (as it will be updated weekly).</P><P>In the set attribute mapping dialog where you select which field you want the colour to be based on there is an expression option which I was hoping I could use to add the '#' but it is greyed out and I have no idea why. I have tested on multiple datasets and it remains greyed out for all of them.</P><P>Is there any other way i could get this to work?</P></BODY></HTML> Thu, 06 Jul 2017 00:21:59 GMT ZaraCarman 2017-07-06T00:21:59Z How to get attribute driven symbology to work with hex values without the '#' https://community.esri.com/t5/arcgis-pro-questions/how-to-get-attribute-driven-symbology-to-work-with/m-p/27469#M999 <HTML><HEAD></HEAD><BODY><P>I am trying to use attribute driven symbology to define the colours of bus routes in a GTFS in ArcGIS Pro. The data contains a field of hex values without the '#' in front of the value (ie&nbsp;007F5A) which doesn't work with&nbsp;setting colour properties in attribute driven symbology (I made a copy of the dataset and calculated a new field adding a '#' in front of the hex values and it worked so I know I am doing the correct process).</P><P>I am looking for ways I can get this to work without editing the dataset (as I don't have permissions) or copying the dataset into my own database (as it will be updated weekly).</P><P>In the set attribute mapping dialog where you select which field you want the colour to be based on there is an expression option which I was hoping I could use to add the '#' but it is greyed out and I have no idea why. I have tested on multiple datasets and it remains greyed out for all of them.</P><P>Is there any other way i could get this to work?</P></BODY></HTML> Thu, 06 Jul 2017 00:21:59 GMT https://community.esri.com/t5/arcgis-pro-questions/how-to-get-attribute-driven-symbology-to-work-with/m-p/27469#M999 ZaraCarman 2017-07-06T00:21:59Z