topic Re: Wildcards in layerDefinition in ArcGIS Viewer for Flex Questions

Wildcards in layerDefinition

AndrewBoyle1 — Wed, 04 Sep 2013 20:27:23 GMT

I've been working on a widget to allow a user to filter the display of a FeatureLayer by setting a layerDefinition expression in the parent ArcGISDynamicMapServiceLayer's layerDefinitions property. I'm wondering if it is possible to use wildcard expressions in the layerDefinition? I've tried using both '*' and '%' as wildcard characters. I have tried using '=' and 'LIKE' as the logical operators in the expression but none of those options seem to work?

Thanks!

Re: Wildcards in layerDefinition

RobertScheitlin__GISP — Thu, 05 Sep 2013 01:36:14 GMT

Andrew,

Sure wildcards work here is a example I just tested:

    <esri:Map id="map">         <esri:extent>             <esri:Extent xmin="-13456111" ymin="4335957" xmax="-11817302" ymax="5194498">                 <esri:SpatialReference wkid="102100"/>             </esri:Extent>         </esri:extent>         <esri:ArcGISTiledMapServiceLayer url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"/>         <esri:ArcGISDynamicMapServiceLayer id="censusLayer" name="Census"                                            url="http://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer">             <esri:layerDefinitions>                 <!--Oklahoma is FIPS = '40', Oregon is FIPS = '41', Pennsylvania is FIPS = '42', Rhode Island is FIPS = '44',                  South Carolina is FIPS = '45', South Dakota is FIPS = '46', Tennessee is FIPS = '47',  Texas is FIPS = '48',                 Utah is FIPS = '49',  -->                 <esri:LayerDefinition layerId="0" definition="STATE_FIPS like '4%'"/>                 <esri:LayerDefinition layerId="1" definition="STATE_FIPS like '4%'"/>                 <esri:LayerDefinition layerId="2" definition="STATE_FIPS like '4%'"/>                 <esri:LayerDefinition layerId="3" definition="STATE_FIPS like '4%'"/>             </esri:layerDefinitions>         </esri:ArcGISDynamicMapServiceLayer>     </esri:Map>

Re: Wildcards in layerDefinition

AndrewBoyle1 — Thu, 05 Sep 2013 12:50:04 GMT

That's good to know. There must be some sort of bug in the widget I'm using that is causing it to not format the layer definitions correctly. Thanks!

Re: Wildcards in layerDefinition

GustafJonsson — Thu, 25 Sep 2014 00:43:28 GMT

I believe it's a bug in the API sometimes decoding the expression to hexadecimal values depending on the characters following the % wildcard.

See my workaround here

https://community.esri.com/message/424756#424756