ArcGIS API arcgisdynamicmapservicelayer.setvisiblelayers is not valid for data with Grouplayer layer groups (for layerinfo).

First look at the Setvisiblelayers method:

setvisiblelayers (IDs, Donotrefresh? ) )defaultdefaultinlayerinfo
 with a value of-1. if (Visible.length = = = 0) {  Visible.push (-1);} Layer.setvisiblelayers (visible);

After testing, JS development, setvisiblelayers for features with layer groups cannot be directly manipulated.

For example:

The layer Layerinfo (red circle, Grouplayer) is show/hide after loading and does not work properly.

Workaround 1:

Do not increase the layer Group (Grouplayer) when publishing the layer, all layers under one layer, after the release of the call to normal use;

Workaround 2:

The first solution needs to put all the data on the same layer, do not set the group layer, for simple data, but a large number of data need to group, you need to consider the grouping problem, Grouplayer itself in the JS API after loading is Layerinfo,

The idea is: Remove the layer groups inside the Visiblelayer, and then call Setvisiblelayers (Visiblelayer).

1 functiongetvisiblelayers (layer, sublayerindex) {2Require (["Dojo/_base/array"],function(array) {3         varLayerinfos =Layer.layerinfos;4         vari;5         //array for setting visible layers6         varVisiblelayers = [-1];7 8         if(typeofSublayerindex!== "undefined") {9             varNewvis =!layerinfos[sublayerindex].defaultvisibility;Ten             //reverse current visibility of sublayer OneLayerinfos[sublayerindex].defaultvisibility =Newvis; A         } -  -         //For each sublayer the          for(i = 0; i < layerinfos.length; i++) { -             varinfo =Layerinfos[i]; -             //push to visible layers if it ' s visible -             if(info.defaultvisibility) { + Visiblelayers.push (info.id); -                 varNegative = Array.lastindexof (visiblelayers, 1); +                 if(Negative!==-1) { AVisiblelayers.splice (negative, 1); at                 } -             } -         } -         //Now and the array of Visiblelayer Ids is assembled, description: Grouplayer is processed here -         //strip off Ids of invisible child layers, and -         //Ids of group layers (group layer Ids should not being submitted in         //In . setvisible () or loss of toggle control madness ensues. -         //Remove layers whos parents is not visible: to         varNoinvisibleparents = []; +          for(i = 0; i < visiblelayers.length; i++) { -             varID =Visiblelayers[i]; the             varHasparentsinvisiblearray = This. _allidspresent (layer, ID, visiblelayers); *             if(Hasparentsinvisiblearray) { $ Noinvisibleparents.push (ID);Panax Notoginseng             } -         } the         varNogroups = []; +          for(varj = 0; J < Noinvisibleparents.length; J + +) { A             varLyrinfo = This. _getlayerinfo (layer, noinvisibleparents[j]); the             if(lyrinfo && Lyrinfo.sublayerids = = =NULL) { + Nogroups.push (Noinvisibleparents[j]); -             } $         } $         //note:set-1 if array is empty. -         if(!nogroups.length) { -Nogroups = [-1]; the         } -         returnnogroups;Wuyi     }); the}

The code is slightly more complex, but it can be used as a reference for custom layer operations.

Note: Refer to the ArcGIS JS API layerlist source code

ArcGIS API arcgisdynamicmapservicelayer.setvisiblelayers is not valid for data with Grouplayer layer groups (for layerinfo).