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Load WFS with XML query

Load a WFS feature table using an XML query.

Use case

Runtime QueryParameters objects can't represent all possible queries that can be made against a WFS feature service. For example, Runtime query parameters don't support wildcard searches. You can provide queries as raw XML strings, allowing you to access query functionality not available with QueryParameters.

How it works

  1. Create a WfsFeatureTable and a FeatureLayer to visualize the table.
  2. Set the feature request mode to ManualCache.
  3. Call PopulateFromService to populate the table with only those features returned by the XML query.

Relevant API

  • FeatureLayer
  • WfsFeatureTable
  • WfsFeatureTable.AxisOrder
  • WfsFeatureTable.PopulateFromServiceAsync

About the data

This service shows trees in downtown Seattle and the surrounding area. An XML-encoded GetFeature request is used to limit results to only trees of the genus Tilia.

For additional information, see the underlying service on ArcGIS Online.

Tags

OGC, WFS, feature, web, service, XML, query