Unable to load WMS layer without defining basemap

ZachRuiz — Thu, 17 Nov 2022 16:43:56 GMT

I have a WMS layer I need to render in my application but for some reason it does not want to render unless I have set a basemap. This sadly will not work for me as I need the application to work offline I have followed the WMS layer (URL) example to a tee and the only way I can make the layer show is if I have defiend a basemap style.

I have tested that it is possible to add a WMS layer without a basemap by using the example from the sample app and that works fine.

Working Code:

private readonly Uri _wmsUrlVFR = new Uri("https://wms.chartbundle.com/mp/service?SERVICE=WMS&REQUEST=GetCapabilities"); private readonly List<string> _wmsLayerNamesVFR = new List<string> { "sec_3857" }; private async void Initialize() { Map myMap = new Map(BasemapStyle.ArcGISDarkGray); // Add the map to the mapview. MyMapView.Map = myMap; } private void Button_Click(object sender, RoutedEventArgs e) { // Create a new WMS layer displaying the specified layers from the service. _VFRChart = new WmsLayer(_wmsUrlVFR, _wmsLayerNamesVFR); MyMapView.Map.OperationalLayers.Add(_VFRChart); }

Not working code:

private readonly Uri _wmsUrlVFR = new Uri("https://wms.chartbundle.com/mp/service?SERVICE=WMS&REQUEST=GetCapabilities"); private readonly List<string> _wmsLayerNamesVFR = new List<string> { "sec_3857" }; private async void Initialize() { Map myMap = new Map(); // Add the map to the mapview. MyMapView.Map = myMap; } private void Button_Click(object sender, RoutedEventArgs e) { // Create a new WMS layer displaying the specified layers from the service. _VFRChart = new WmsLayer(_wmsUrlVFR, _wmsLayerNamesVFR); MyMapView.Map.OperationalLayers.Add(_VFRChart); }

You will see the only difference is line 8

Re: Unable to load WMS layer without defining basemap

ZachRuiz — Thu, 17 Nov 2022 17:19:49 GMT

Ah, I need to set the spatial reference.

Re: Unable to load WMS layer without defining basemap

ZachRuiz — Thu, 17 Nov 2022 17:20:03 GMT

Map myMap = new Map(SpatialReferences.WebMercator);

topic Re: Unable to load WMS layer without defining basemap in .NET Maps SDK Questions

Unable to load WMS layer without defining basemap

Re: Unable to load WMS layer without defining basemap

Re: Unable to load WMS layer without defining basemap