Latest Contributions by DataSteward

Thanks Thomas, that was helpful, though it hasn't helped me to fully solve the problem. I can get IE to work with my map if I set the compatibility mode to 'edge' (though only if I do so manually).  By setting it with my html header meta, I can get most maps to load fine in IE, except when I load multiple ImageLayers (even if not set to visible).  For now, I guess I'll set my map up to only provide a single ImageLayer if the client is IE, along with a note to suggest using an alternate browser. ... View more

Thanks - that gave me what I needed!  I've implemented it just a little differently.  For the record... require([   "esri/Map",   "esri/views/MapView",   "esri/geometry/Extent",   "esri/core/watchUtils",   ...   ],   function(Map,     MapView,     Extent,     watchUtils,     ...     ) {            var map = new Map({       basemap: "topo",       });          var view = new MapView({       container: "map-container",       map: map,       ...       });       //dpLayers brings a set of layers with their details from     //a database via JSON.  mapLayers is an array I keep for various     //reference purposes, but is very handy for adding the watches I     //was asking about in this post     var mapLayers = [];     var dpLayersLen = dpLayers.length;     for (var i = 0; i < dpLayersLen; i++) {       switch (dpLayers.layerType) {         case 'raster':           var imgLayer = new ImageryLayer({             title: dpLayers.title, ...            });           mapLayers.push(imgLayer);           map.add(mapLayers);           break;         case 'vector':           var featureLayer = new FeatureLayer({             title: dpLayers.title, ...             });           mapLayers.push(featureLayer);           map.add(mapLayers);           break;         }       }     var c = mapLayers.length;     for (var i = 0; i < dpLayersLen; i++) {       watchUtils.watch(mapLayers, 'visible', function () { alert('Layer visibility changed!')});       } ... View more

Thanks! But... I don't believe that will work.  I've tried adding that code and similar, but am getting no response.  My console does not indicate any javascript errors.       map.allLayers.on("change", function(event) {         alert('allLayers change');       }); The reason I don't think that code is relevant is that it is detecting change on map.allLayers but the changes I'm looking for are about visibility of the layers within the map.  Turning a layer off from the layerList widget doesn't 'remove' it from the map, it just sets its visibility to false.  The sandbox example unfortunately just demonstrates detecting the initial inclusion of a layer in the map, not subsequent client-triggered changes to map layers. Thus I've tried watching map.layers but that doesn't detect the changes to visibility either.  I'm not finding the watch system to be very intuitive... should I apply a watch to each layer individually?  And if so, how?  I'm using both FeatureLayers and ImageLayers.  I'd also like to detect a change to the basemap. Thanks! ... View more

OK, thanks! I'll just get everything changed over to WebMerc.   ... View more

"Add XY Coordinates" did the trick! I'm at version 9.3.1 - looking forward to 10.  My shape field reports "Point ZM".  The file originated as a CSV with XYZ values, turned into a shape file with "ASCII 3D to Feature Class". My code may remain a mystery, but the overall problem is solved. Thanks! ... View more