topic Re: Can not load WFS-Featuretable from URL Hosted on Mapserver in .NET Maps SDK Questions

Can not load WFS-Featuretable from URL Hosted on Mapserver

DanielSchuler — Thu, 08 Oct 2020 15:12:55 GMT

When I try to load a WfsFeatureTable from a WFS-Layer hosted on a MapServer, I get the following Error:

Invalid XML.: Parser couldn't move inside bounding box.

Is there any known issue with this topic in the arcgis runtime sdk for .NET 100.9?

I tried to load this Layer with the SampleApplication ArcGISRuntime.WPF.Viewer.Samples.ChangeSublayerVisibility

I had no troubles with loading WFS-FeatureTable with other WFS-Layer for example hosted on a GeoServer.

When I try to connect to the MapServer WFS-Layer on QGIS, there is know problem with this

Re: Can not load WFS-Featuretable from URL Hosted on Mapserver

MatveiStefarov — Thu, 08 Oct 2020 16:55:24 GMT

Hello Daniel! I can think of a couple possible reasons for the service not working:

- Is WFS 2.0 enabled for this service? Runtime does not currently support the legacy WFS versions 1.0 or 1.1.

- Does the TableUrl point to the GetCapabilities endpoint of the service? For MapServer it should look something like this: http://your.domain.here/cgi-bin/mapserv?service=WFS&version=2.0.0&request=GetCapabilities (note "service", "version", and "request" parameters in the URL).

If you could share the URL of the service or a copy of the GetCapabilities response document, I would be happy to troubleshoot it further.

Re: Can not load WFS-Featuretable from URL Hosted on Mapserver

DanielSchuler — Mon, 12 Oct 2020 09:56:15 GMT

Hi Matvei

WFS 2.0 should be enable and the Table-URL looks like you described. Unfortunately I cannot share my URL to the public because the data of this Layer are protected, but I attached the GetCapabilities XML (URL is adjusted).

Let me know if you need further information.

Best regads,

Daniel

Von: Matvei Stefarov <geonet@esri.com>

Gesendet: Donnerstag, 8. Oktober 2020 18:56

An: Schuler Daniel <Daniel.Schuler@remec.ch>

Betreff: Re: - Re: Can not load WFS-Featuretable from URL Hosted on Mapserver

GeoNet, The Esri Community | GIS and Geospatial Professional Community <https://community.esri.com/?et=watches.email.thread>

Re: Can not load WFS-Featuretable from URL Hosted on Mapserver

reply from Matvei Stefarov<https://community.esri.com/people/MStefarov-esristaff?et=watches.email.thread> in ArcGIS Runtime SDK for .NET - View the full discussion<https://community.esri.com/message/957969-re-can-not-load-wfs-featuretable-from-url-hosted-on-mapserver?commentID=957969&et=watches.email.thread#comment-957969>

Re: Can not load WFS-Featuretable from URL Hosted on Mapserver

MatveiStefarov — Tue, 13 Oct 2020 02:10:07 GMT

I think I spotted the problem. Some of the layers in the capabilities document are missing information about geographic extent. These layers are:

ms:aw_masslinien_punkte
ms:aw_masslinien_linien
ms:aw_masslinien_text

I see that MapServer actually generates a little warning comment on these layers, right in the XML:

<ows:WGS84BoundingBox/> 

Normally Runtime can handle layers without extent or geometry, but here MapServer does something not-by-the-specification. Instead of omitting WGS84BoundingBox completely, MapServer creates empty WGS84BoundingBox elements that lack required child elements. This causes the XML document to fail validation, and a loading error is reported by Runtime. I logged a bug with MapServer developers about this behavior. We will also look into broadening our XML parser's compatibility in future releases, to handle this edge-case and skip empty WGS84BoundingBox elements.

For now, I suggest trying MapServer's recommendation to ensure that all layers on the service have a geographic extent. Please let me know if this helps.

Cheers,

Matvei

Re: Can not load WFS-Featuretable from URL Hosted on Mapserver

DanielSchuler — Thu, 05 Nov 2020 13:49:19 GMT

Hi Matvei

You were right. As soon as the extent were defined correctly, it worked! Thanks for your support.

Best Regards, Daniel