topic WebTiledLayer blank, never downloads in ArcGIS JavaScript Maps SDK Questions

WebTiledLayer blank, never downloads

DavidElies — Fri, 18 Nov 2016 19:38:42 GMT

When I try to create a WebTiledLayer and add it to the map, it creates the layer and adds it to the map just fine, but it doesn't display anything. When I watch the network traffic, no requests are made for that layer. If I pan and zoom, I can see the basemap and FeatureLayer requests as they are redrawn, but nothing for my WebTiledLayer. Is there a setting that might affect whether a WebTiledLayer needs to draw itself. Does the order in which it is added matter, or the index, or what type of other layers there are?

Re: WebTiledLayer blank, never downloads

DavidElies — Mon, 21 Nov 2016 18:43:24 GMT

I found my problem. I had added my generic javascript object ("properties") as the tileInfo object, instead of creating a new TileInfo object from my properties.

Wrong:

new WebTiledLayer("https://template.url.com", { "tileInfo": tileInfoProperties });‍‍

Right:

new WebTiledLayer("https://template.url.com", { "tileInfo": new TileInfo(tileInfoProperties) });‍