Class QueryParameters

Represents the parameters to perform a query on a dataset.

Inheritance

System.Object

QueryParameters

Inherited Members

System.Object.ToString()

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

Namespace: Esri.ArcGISRuntime.Data

Assembly: Esri.ArcGISRuntime.dll

Syntax

public sealed class QueryParameters

Remarks

These parameters provide attribute, spatial, and temporal criteria that you can use to filter features. You can define attribute criteria using a standard SQL expression based on the available attribute fields, spatial criteria using a geometry and a spatial relationship (such as within, contains, intersect), or temporal filters using a single date/time, or a range. You can also control how the results are sorted and whether to return geometry.

In addition to querying features in a table, you can also use these parameters to count specific features, calculate the extent of features, select features in layers, and populate service-based tables. If the query method produces a set of features, they are returned in a FeatureQueryResult.

Different query parameter objects are available to query data sources such as related features (RelatedQueryParameters), statistical information (StatisticsQueryParameters), and portals (PortalQueryParameters). Specialized query parameters also exist for working with utility networks and routing.

Constructors

Name	Description
QueryParameters()	Initializes a new instance of the QueryParameters class.

Properties

Name	Description
Geometry	Gets or sets the Geometry that (along with the SpatialRelationship) defines features to be included in the query.
MaxAllowableOffset	Gets or sets the maximum allowable offset.
MaxFeatures	Gets or sets the maximum number of features the query should return.
ObjectIds	Gets the object IDs of the features to query.
OrderByFields	Gets the fields by which query results will be ordered.
OutSpatialReference	Gets or sets the SpatialReference of feature results' geometry.
ResultOffset	Gets or sets the starting offset of results to fetch. This is useful for paging through results.
ReturnGeometry	Gets or sets a value indicating whether to return Geometry in the feature results.
SpatialRelationship	Gets or sets the type of SpatialRelationship (along with the Geometry) that defines features to be included in the query.
TimeExtent	Gets or sets the TimeExtent used to query features in a time-aware feature layer.
WhereClause	Gets or sets the attribute expression that defines features to be included in the query.

See Also

QueryFeaturesAsync(QueryParameters)

QueryFeatureCountAsync(QueryParameters)

QueryExtentAsync(QueryParameters)

SelectFeaturesAsync(QueryParameters, SelectionMode)

PopulateFromServiceAsync(QueryParameters, Boolean, IEnumerable<String>)

Applies to

Target	Versions
.NET Standard 2.0	100.3 - 200.7
.NET	100.13 - 200.7
.NET Windows	100.13 - 200.7
.NET Android	200.0 - 200.7
.NET iOS	200.0 - 200.7
.NET Framework	100.0 - 200.7
Xamarin.Android	100.0 - 100.15
Xamarin.iOS	100.0 - 100.15
UWP	100.0 - 200.7

Relevant samples

Browse WFS layers: Browse a WFS service for layers and add them to the map.

Edit and sync features: Synchronize offline edits with a feature service.