topic TOC- Make Only One Layer Visible at a Time in ArcGIS JavaScript Maps SDK Questions https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/toc-make-only-one-layer-visible-at-a-time/m-p/246312#M22824 <HTML><HEAD></HEAD><BODY><SPAN>I am using the table of contents widget written by nliu located at the following link:&nbsp; </SPAN><A href="http://www.arcgis.com/home/item.html?id=9b6280a6bfb0430f8d1ebc969276b109">http://www.arcgis.com/home/item.html?id=9b6280a6bfb0430f8d1ebc969276b109</A><SPAN>.</SPAN><BR /><BR /><SPAN>I was wondering if it is possible to modify the widget to only make one layer visible at a time?&nbsp; I would like to keep the tree structure of the widget for grouping/ organizational purposes, but force it to be where only one check box in each group layer can be checked at a time.&nbsp; Does anyone know how I could go about doing this?</SPAN></BODY></HTML> Tue, 25 Mar 2014 17:09:13 GMT WesAskew 2014-03-25T17:09:13Z TOC- Make Only One Layer Visible at a Time https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/toc-make-only-one-layer-visible-at-a-time/m-p/246312#M22824 <HTML><HEAD></HEAD><BODY><SPAN>I am using the table of contents widget written by nliu located at the following link:&nbsp; </SPAN><A href="http://www.arcgis.com/home/item.html?id=9b6280a6bfb0430f8d1ebc969276b109">http://www.arcgis.com/home/item.html?id=9b6280a6bfb0430f8d1ebc969276b109</A><SPAN>.</SPAN><BR /><BR /><SPAN>I was wondering if it is possible to modify the widget to only make one layer visible at a time?&nbsp; I would like to keep the tree structure of the widget for grouping/ organizational purposes, but force it to be where only one check box in each group layer can be checked at a time.&nbsp; Does anyone know how I could go about doing this?</SPAN></BODY></HTML> Tue, 25 Mar 2014 17:09:13 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/toc-make-only-one-layer-visible-at-a-time/m-p/246312#M22824 WesAskew 2014-03-25T17:09:13Z Re: TOC- Make Only One Layer Visible at a Time https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/toc-make-only-one-layer-visible-at-a-time/m-p/246313#M22825 <HTML><HEAD></HEAD><BODY><SPAN>You could modify the widget to emit an event when a layer is set to visible (and pass along the ID or reference to that layer).</SPAN><BR /><BR /><SPAN>Then you could set up a listener for that specific event, and hide all other layers based on that.</SPAN></BODY></HTML> Wed, 26 Mar 2014 21:41:37 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/toc-make-only-one-layer-visible-at-a-time/m-p/246313#M22825 JonathanUihlein 2014-03-26T21:41:37Z