Method PopulateFromServiceAsync

PopulateFromServiceAsync(QueryParameters, Boolean, Nullable<IEnumerable<String>>)

Asynchronously populates the table using a query.

Declaration

public Task<FeatureQueryResult> PopulateFromServiceAsync(QueryParameters parameters, bool clearCache, IEnumerable<string>? outFields)

Parameters

Type	Name	Description
QueryParameters	parameters	The QueryParameters used to filter feature results.
System.Boolean	clearCache	A value indicating whether to clear existing table data before loading new results. If true, clears existing table data before populating with the query result.
System.Nullable<IEnumerable<String>>	outFields	The attribute fields to include in the result.

Returns

Type	Description
Task<FeatureQueryResult>	A task that represents the asynchronous populate from service operation. The value of the task result is a FeatureQueryResult object.

Remarks

Use the default (empty) QueryParameters to get all features from the service. Specifying null or an empty for outFields will result in the default set of outfields being used. WFS is only compatible with a subset of possible queries defined by QueryParameters. Where clause only works when the table is backed by a service powered by GeoServer. Spatial queries (those that set Geometry) must use Intersects.

Applies to

Platforms and versions

Target	Versions
UWP	100.15

PopulateFromServiceAsync(QueryParameters, Boolean, Nullable<IEnumerable<String>>, CancellationToken)

Asynchronously populates the table using a query.

Declaration

public async Task<FeatureQueryResult> PopulateFromServiceAsync(QueryParameters parameters, bool clearCache, IEnumerable<string>? outFields, CancellationToken cancellationToken)

Parameters

Type	Name	Description
QueryParameters	parameters	The QueryParameters used to filter feature results.
System.Boolean	clearCache	A value indicating whether to clear existing table data before loading new results.
System.Nullable<IEnumerable<String>>	outFields	The attribute fields to include in the result.
CancellationToken	cancellationToken	A cancellation token that can be used by other objects or threads to receive notice of cancellation.

Returns

Type	Description
Task<FeatureQueryResult>	A task that represents the asynchronous populate from service operation. The value of the task result is a FeatureQueryResult object.

Remarks

Use the default (empty) QueryParameters to get all features from the service. WFS is only compatible with a subset of possible queries defined by QueryParameters. Where clause only works when the table is backed by a service powered by GeoServer. Spatial queries (those that set Geometry) must use the Intersects spatial relationship.

Applies to

Platforms and versions

Target	Versions
UWP	100.15

PopulateFromServiceAsync(String, Boolean)

Asynchronously populates the table using an XML query.

Declaration

public Task<FeatureQueryResult> PopulateFromServiceAsync(string xmlRequest, bool clearCache)

Parameters

Type	Name	Description
String	xmlRequest	An XML-encoded GetFeature request.
System.Boolean	clearCache	A value indicating whether to clear existing table data before loading new results.

Returns

Type	Description
Task<FeatureQueryResult>	A task that represents the asynchronous populate from service operation. The value of the task result is a FeatureQueryResult object.

Remarks

Use XML to perform queries that aren't possible with QueryParameters. The schema of the query result should match or be a subset of the schema of the table. The queried feature type must be the same feature type represented by this table.

Applies to

Platforms and versions

Target	Versions
.NET Standard 2.0	100.5 - 100.15
.NET 6.0	100.13 - 100.15
.NET 6.0 Windows	100.13 - 100.15
.NET Framework	100.5 - 100.15
.NET 5	100.10 - 100.12
.NET Core 3.1	100.7 - 100.12
Xamarin.Android	100.5 - 100.15
Xamarin.iOS	100.5 - 100.15
UWP	100.5 - 100.15

PopulateFromServiceAsync(String, Boolean, CancellationToken)

Asynchronously populates the table using an XML query.

Declaration

public async Task<FeatureQueryResult> PopulateFromServiceAsync(string xmlRequest, bool clearCache, CancellationToken cancellationToken)

Parameters

Type	Name	Description
String	xmlRequest	An XML-encoded GetFeature request.
System.Boolean	clearCache	A value indicating whether to clear existing table data before loading new results.
CancellationToken	cancellationToken	A cancellation token that can be used by other objects or threads to receive notice of cancellation.

Returns

Type	Description
Task<FeatureQueryResult>	A task that represents the asynchronous populate from service operation. The value of the task result is a FeatureQueryResult object.

Remarks

Use XML to perform queries that aren't possible with QueryParameters. The schema of the query result should match or be a subset of the schema of the table. The queried feature type must be the same feature type represented by this table.

Applies to

Platforms and versions

Target	Versions
UWP	100.15