dymaptic.GeoBlazor.Core
dymaptic.GeoBlazor.Core.Model
Query Class
This class defines parameters for executing queries for features from a layer or layer view.
ArcGIS Maps SDK for JavaScript
public class Query :
dymaptic.GeoBlazor.Core.Interfaces.IQueryMixin,
System.IEquatable<dymaptic.GeoBlazor.Core.Model.Query>
Inheritance System.Object 🡒 Query
Implements IQueryMixin, System.IEquatable<Query>
Constructors
Query(IReadOnlyCollection, Nullable, Nullable, Nullable, string, Geometry, Nullable, IReadOnlyCollection, string, Nullable, Nullable, Nullable, string, Nullable, IReadOnlyCollection, IReadOnlyCollection, IReadOnlyCollection, SpatialReference, IReadOnlyCollection, Dictionary<string,object>, Point, QuantizationParameters, QueryCompositeTransformation, QuerySimpleTransformation, IReadOnlyCollection, string, Nullable, Nullable, Nullable, Nullable, Nullable, Nullable, Nullable, Nullable, Nullable, Nullable, string, TimeExtent, Nullable, string) Constructor
This class defines parameters for executing queries for features from a layer or layer view.
ArcGIS Maps SDK for JavaScript
public Query(System.Collections.Generic.IReadOnlyCollection<string>? AggregateIds=null, System.Nullable<bool> CacheHint=null, System.Nullable<double> Distance=null, System.Nullable<double> DoubleDatumTransformation=null, string? GdbVersion=null, dymaptic.GeoBlazor.Core.Components.Geometries.Geometry? Geometry=null, System.Nullable<int> GeometryPrecision=null, System.Collections.Generic.IReadOnlyCollection<string>? GroupByFieldsForStatistics=null, string? Having=null, System.Nullable<System.DateTime> HistoricMoment=null, System.Nullable<double> MaxAllowableOffset=null, System.Nullable<int> MaxRecordCountFactor=null, string? MultipatchOption=null, System.Nullable<int> Num=null, System.Collections.Generic.IReadOnlyCollection<dymaptic.GeoBlazor.Core.Model.ObjectId>? ObjectIds=null, System.Collections.Generic.IReadOnlyCollection<string>? OrderByFields=null, System.Collections.Generic.IReadOnlyCollection<string>? OutFields=null, dymaptic.GeoBlazor.Core.Components.SpatialReference? OutSpatialReference=null, System.Collections.Generic.IReadOnlyCollection<dymaptic.GeoBlazor.Core.Model.StatisticDefinition>? OutStatistics=null, System.Collections.Generic.Dictionary<string,object?>? ParameterValues=null, dymaptic.GeoBlazor.Core.Components.Geometries.Point? PixelSize=null, dymaptic.GeoBlazor.Core.Model.QuantizationParameters? QuantizationParameters=null, dymaptic.GeoBlazor.Core.Model.QueryCompositeTransformation? QueryCompositeTransformationDatumTransformation=null, dymaptic.GeoBlazor.Core.Model.QuerySimpleTransformation? QuerySimpleTransformationDatumTransformation=null, System.Collections.Generic.IReadOnlyCollection<dymaptic.GeoBlazor.Core.Model.QueryRangeValues>? RangeValues=null, string? RelationParameter=null, System.Nullable<bool> ReturnCentroid=null, System.Nullable<bool> ReturnDistinctValues=null, System.Nullable<bool> ReturnExceededLimitFeatures=null, System.Nullable<bool> ReturnGeometry=null, System.Nullable<bool> ReturnM=null, System.Nullable<bool> ReturnQueryGeometry=null, System.Nullable<bool> ReturnZ=null, System.Nullable<dymaptic.GeoBlazor.Core.Enums.SpatialRelationship> SpatialRelationship=null, System.Nullable<dymaptic.GeoBlazor.Core.Enums.SqlFormat> SqlFormat=null, System.Nullable<int> Start=null, string? Text=null, dymaptic.GeoBlazor.Core.Components.TimeExtent? TimeExtent=null, System.Nullable<dymaptic.GeoBlazor.Core.Enums.QueryUnits> Units=null, string? Where=null);
Parameters
AggregateIds System.Collections.Generic.IReadOnlyCollection<System.String>
An array of Object IDs representing aggregate (i.e.
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CacheHint System.Nullable<System.Boolean>
Distance System.Nullable<System.Double>
DoubleDatumTransformation System.Nullable<System.Double>
Datum transformation used for projecting geometries in the query results when
outSpatialReference is different than the layer’s spatial reference.
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GdbVersion System.String
Specifies the geodatabase version to display for feature service queries.
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Geometry Geometry
The geometry to apply to the spatial filter.
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GeometryPrecision System.Nullable<System.Int32>
Specifies the number of decimal places for geometries returned by the JSON query operation.
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GroupByFieldsForStatistics System.Collections.Generic.IReadOnlyCollection<System.String>
Used only in statistical queries.
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Having System.String
A condition used with outStatistics and groupByFieldsForStatistics
to limit query results to groups that
satisfy the aggregation function(s).
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HistoricMoment System.Nullable<System.DateTime>
The historic moment to query.
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MaxAllowableOffset System.Nullable<System.Double>
The maximum distance in units of outSpatialReference used for
generalizing geometries returned by the query operation.
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MaxRecordCountFactor System.Nullable<System.Int32>
When set, the maximum number of features returned by the query will equal the
maxRecordCount of the service multiplied by this factor.
default 1
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MultipatchOption System.String
Parameter dictates how the geometry of a multipatch feature will be returned.
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Num System.Nullable<System.Int32>
The number of features to retrieve.
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ObjectIds System.Collections.Generic.IReadOnlyCollection<ObjectId>
An array of ObjectIDs to be used to query for features in a layer.
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OrderByFields System.Collections.Generic.IReadOnlyCollection<System.String>
One or more field names used to order the query results.
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OutFields System.Collections.Generic.IReadOnlyCollection<System.String>
Attribute fields to include in the FeatureSet.
default null
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OutSpatialReference SpatialReference
The spatial reference for the returned geometry.
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OutStatistics System.Collections.Generic.IReadOnlyCollection<StatisticDefinition>
The definitions for one or more field-based statistics to be calculated.
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ParameterValues System.Collections.Generic.Dictionary<System.String,System.Object>
Filters features from the layer based on pre-authored parameterized filters.
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PixelSize Point
Specifies the pixel level to be identified on the X and Y axis.
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QuantizationParameters QuantizationParameters
Used to project the geometry onto a virtual grid, likely representing
pixels on the screen.
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QueryCompositeTransformationDatumTransformation QueryCompositeTransformation
Datum transformation used for projecting geometries in the query results when
outSpatialReference is different than the layer’s spatial reference.
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QuerySimpleTransformationDatumTransformation QuerySimpleTransformation
Datum transformation used for projecting geometries in the query results when
outSpatialReference is different than the layer’s spatial reference.
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RangeValues System.Collections.Generic.IReadOnlyCollection<QueryRangeValues>
Filters features from the layer that are within the specified range values.
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RelationParameter System.String
The Dimensionally Extended 9 Intersection Model (DE-9IM) matrix relation (encoded as a string) to query
the spatial relationship of the input geometry to the layer’s features.
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ReturnCentroid System.Nullable<System.Boolean>
If true, each feature in the returned FeatureSet will be returned with a centroid.
default false
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ReturnDistinctValues System.Nullable<System.Boolean>
If true then the query returns distinct values based on the field(s) specified in outFields.
default false
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ReturnExceededLimitFeatures System.Nullable<System.Boolean>
If true, then all features are returned for each tile request, even if they exceed the
maximum record limit per query indicated on the service by maxRecordCount.
default true
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ReturnGeometry System.Nullable<System.Boolean>
If true, each feature in the returned FeatureSet includes the geometry.
default false
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ReturnM System.Nullable<System.Boolean>
If true, and returnGeometry is true, then m-values are included in the geometry.
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ReturnQueryGeometry System.Nullable<System.Boolean>
If true, the query geometry will be returned with the query results.
default false
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ReturnZ System.Nullable<System.Boolean>
If true, and returnGeometry is true, then z-values are included in the geometry.
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SpatialRelationship System.Nullable<SpatialRelationship>
SqlFormat System.Nullable<SqlFormat>
This parameter can be either standard SQL92 standard or it can use the native SQL of the underlying datastore native.
default “none”
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Start System.Nullable<System.Int32>
The zero-based index indicating where to begin retrieving features.
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Text System.String
Shorthand for a where clause using “like”.
default null
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TimeExtent TimeExtent
A time extent for a temporal query against time-aware layers.
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Units System.Nullable<QueryUnits>
Where System.String
Properties
Query.AggregateIds Property
An array of Object IDs representing aggregate (i.e.
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public System.Collections.Generic.IReadOnlyCollection<string>? AggregateIds { get; set; }
Property Value
System.Collections.Generic.IReadOnlyCollection<System.String>
Query.CacheHint Property
public System.Nullable<bool> CacheHint { get; set; }
Implements CacheHint
Property Value
System.Nullable<System.Boolean>
Query.Distance Property
public System.Nullable<double> Distance { get; set; }
Implements Distance
Property Value
System.Nullable<System.Double>
Query.DoubleDatumTransformation Property
Datum transformation used for projecting geometries in the query results when
outSpatialReference is different than the layer’s spatial reference.
ArcGIS Maps SDK for JavaScript
public System.Nullable<double> DoubleDatumTransformation { get; set; }
Property Value
System.Nullable<System.Double>
Query.GdbVersion Property
Specifies the geodatabase version to display for feature service queries.
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public string? GdbVersion { get; set; }
Property Value
Query.Geometry Property
The geometry to apply to the spatial filter.
ArcGIS Maps SDK for JavaScript
public dymaptic.GeoBlazor.Core.Components.Geometries.Geometry? Geometry { get; set; }
Implements Geometry
Property Value
Query.GeometryPrecision Property
Specifies the number of decimal places for geometries returned by the JSON query operation.
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public System.Nullable<int> GeometryPrecision { get; set; }
Property Value
Query.GroupByFieldsForStatistics Property
Used only in statistical queries.
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public System.Collections.Generic.IReadOnlyCollection<string>? GroupByFieldsForStatistics { get; set; }
Property Value
System.Collections.Generic.IReadOnlyCollection<System.String>
Query.Having Property
A condition used with outStatistics and groupByFieldsForStatistics
to limit query results to groups that
satisfy the aggregation function(s).
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public string? Having { get; set; }
Property Value
Query.HistoricMoment Property
The historic moment to query.
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public System.Nullable<System.DateTime> HistoricMoment { get; set; }
Property Value
System.Nullable<System.DateTime>
Query.MaxAllowableOffset Property
The maximum distance in units of outSpatialReference used for
generalizing geometries returned by the query operation.
ArcGIS Maps SDK for JavaScript
public System.Nullable<double> MaxAllowableOffset { get; set; }
Property Value
System.Nullable<System.Double>
Query.MaxRecordCountFactor Property
When set, the maximum number of features returned by the query will equal the
maxRecordCount of the service multiplied by this factor.
default 1
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public System.Nullable<int> MaxRecordCountFactor { get; set; }
Property Value
Query.MultipatchOption Property
Parameter dictates how the geometry of a multipatch feature will be returned.
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public string? MultipatchOption { get; set; }
Property Value
Query.Num Property
The number of features to retrieve.
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public System.Nullable<int> Num { get; set; }
Property Value
Query.ObjectIds Property
An array of ObjectIDs to be used to query for features in a layer.
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public System.Collections.Generic.IReadOnlyCollection<dymaptic.GeoBlazor.Core.Model.ObjectId>? ObjectIds { get; set; }
Property Value
System.Collections.Generic.IReadOnlyCollection<ObjectId>
Query.OrderByFields Property
One or more field names used to order the query results.
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public System.Collections.Generic.IReadOnlyCollection<string>? OrderByFields { get; set; }
Property Value
System.Collections.Generic.IReadOnlyCollection<System.String>
Query.OutFields Property
Attribute fields to include in the FeatureSet.
default null
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public System.Collections.Generic.IReadOnlyCollection<string>? OutFields { get; set; }
Property Value
System.Collections.Generic.IReadOnlyCollection<System.String>
Query.OutSpatialReference Property
The spatial reference for the returned geometry.
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public dymaptic.GeoBlazor.Core.Components.SpatialReference? OutSpatialReference { get; set; }
Implements OutSpatialReference
Property Value
Query.OutStatistics Property
The definitions for one or more field-based statistics to be calculated.
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public System.Collections.Generic.IReadOnlyCollection<dymaptic.GeoBlazor.Core.Model.StatisticDefinition>? OutStatistics { get; set; }
Property Value
System.Collections.Generic.IReadOnlyCollection<StatisticDefinition>
Query.ParameterValues Property
Filters features from the layer based on pre-authored parameterized filters.
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public System.Collections.Generic.Dictionary<string,object?>? ParameterValues { get; set; }
Property Value
System.Collections.Generic.Dictionary<System.String,System.Object>
Query.PixelSize Property
Specifies the pixel level to be identified on the X and Y axis.
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public dymaptic.GeoBlazor.Core.Components.Geometries.Point? PixelSize { get; set; }
Property Value
Query.QuantizationParameters Property
Used to project the geometry onto a virtual grid, likely representing
pixels on the screen.
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public dymaptic.GeoBlazor.Core.Model.QuantizationParameters? QuantizationParameters { get; set; }
Property Value
Query.QueryCompositeTransformationDatumTransformation Property
Datum transformation used for projecting geometries in the query results when
outSpatialReference is different than the layer’s spatial reference.
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public dymaptic.GeoBlazor.Core.Model.QueryCompositeTransformation? QueryCompositeTransformationDatumTransformation { get; set; }
Property Value
Query.QuerySimpleTransformationDatumTransformation Property
Datum transformation used for projecting geometries in the query results when
outSpatialReference is different than the layer’s spatial reference.
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public dymaptic.GeoBlazor.Core.Model.QuerySimpleTransformation? QuerySimpleTransformationDatumTransformation { get; set; }
Property Value
Query.RangeValues Property
Filters features from the layer that are within the specified range values.
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public System.Collections.Generic.IReadOnlyCollection<dymaptic.GeoBlazor.Core.Model.QueryRangeValues>? RangeValues { get; set; }
Property Value
System.Collections.Generic.IReadOnlyCollection<QueryRangeValues>
Query.RelationParameter Property
The Dimensionally Extended 9 Intersection Model (DE-9IM) matrix relation (encoded as a string) to query
the spatial relationship of the input geometry to the layer’s features.
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public string? RelationParameter { get; set; }
Property Value
Query.ReturnCentroid Property
If true, each feature in the returned FeatureSet will be returned with a centroid.
default false
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public System.Nullable<bool> ReturnCentroid { get; set; }
Property Value
System.Nullable<System.Boolean>
Query.ReturnDistinctValues Property
If true then the query returns distinct values based on the field(s) specified in outFields.
default false
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public System.Nullable<bool> ReturnDistinctValues { get; set; }
Property Value
System.Nullable<System.Boolean>
Query.ReturnExceededLimitFeatures Property
If true, then all features are returned for each tile request, even if they exceed the
maximum record limit per query indicated on the service by maxRecordCount.
default true
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public System.Nullable<bool> ReturnExceededLimitFeatures { get; set; }
Property Value
System.Nullable<System.Boolean>
Query.ReturnGeometry Property
If true, each feature in the returned FeatureSet includes the geometry.
default false
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public System.Nullable<bool> ReturnGeometry { get; set; }
Property Value
System.Nullable<System.Boolean>
Query.ReturnM Property
If true, and returnGeometry is true, then m-values are included in the geometry.
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public System.Nullable<bool> ReturnM { get; set; }
Property Value
System.Nullable<System.Boolean>
Query.ReturnQueryGeometry Property
If true, the query geometry will be returned with the query results.
default false
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public System.Nullable<bool> ReturnQueryGeometry { get; set; }
Property Value
System.Nullable<System.Boolean>
Query.ReturnZ Property
If true, and returnGeometry is true, then z-values are included in the geometry.
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public System.Nullable<bool> ReturnZ { get; set; }
Property Value
System.Nullable<System.Boolean>
Query.SpatialRelationship Property
public System.Nullable<dymaptic.GeoBlazor.Core.Enums.SpatialRelationship> SpatialRelationship { get; set; }
Implements SpatialRelationship
Property Value
System.Nullable<SpatialRelationship>
Query.SqlFormat Property
This parameter can be either standard SQL92 standard or it can use the native SQL of the underlying datastore native.
default “none”
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public System.Nullable<dymaptic.GeoBlazor.Core.Enums.SqlFormat> SqlFormat { get; set; }
Property Value
Query.Start Property
The zero-based index indicating where to begin retrieving features.
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public System.Nullable<int> Start { get; set; }
Property Value
Query.Text Property
Shorthand for a where clause using “like”.
default null
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public string? Text { get; set; }
Property Value
Query.TimeExtent Property
A time extent for a temporal query against time-aware layers.
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public dymaptic.GeoBlazor.Core.Components.TimeExtent? TimeExtent { get; set; }
Implements TimeExtent
Property Value
Query.Units Property
public System.Nullable<dymaptic.GeoBlazor.Core.Enums.QueryUnits> Units { get; set; }
Implements Units
Property Value
Query.UseViewExtent Property
Determines whether to use the view’s extent as the query geometry
public System.Nullable<bool> UseViewExtent { get; set; }
Property Value
System.Nullable<System.Boolean>
Query.Where Property
public string? Where { get; set; }
Implements Where