GeoBlazor Pro
dymaptic.GeoBlazor.Pro
dymaptic.GeoBlazor.Pro.Model
QueryService Class
Executes different types of query operations on a layer. ArcGIS Maps SDK for JavaScript
public class QueryService : dymaptic.GeoBlazor.Pro.Model.ProLogicComponent
Inheritance System.Object 🡒 LogicComponent 🡒 ProLogicComponent 🡒 QueryService
Constructors
QueryService(AuthenticationManager, JsModuleManager, IAppValidator, IJSRuntime) Constructor
Constructor for use by Dependency Injection. Use AddGeoBlazorPro(this IServiceCollection, IConfiguration) in your startup code.
public QueryService(dymaptic.GeoBlazor.Core.Model.AuthenticationManager authenticationManager, dymaptic.GeoBlazor.Core.JsModuleManager jsModuleManager, dymaptic.GeoBlazor.Core.IAppValidator appValidator, Microsoft.JSInterop.IJSRuntime jsRuntime);
Parameters
authenticationManager AuthenticationManager
jsModuleManager JsModuleManager
appValidator dymaptic.GeoBlazor.Core.IAppValidator
jsRuntime Microsoft.JSInterop.IJSRuntime
Properties
QueryService.QueryResultsMaxSizeLimit Property
The maximum size of query results that will be returned in a stream. Note that setting this to a smaller value might create errors in query returns.
public long QueryResultsMaxSizeLimit { get; set; }
Property Value
Methods
QueryService.ExecuteAttachmentQuery(string, AttachmentQuery, RequestOptions, CancellationToken) Method
Query information about attachments associated with features from a feature layer specified in the url parameter. param attachmentQuery Specifies the attachment parameters for query. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Results.AttachmentsQueryResult?> ExecuteAttachmentQuery(string url, dymaptic.GeoBlazor.Core.Model.AttachmentQuery attachmentQuery, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
attachmentQuery AttachmentQuery
requestOptions RequestOptions
Additional options to be used for the data request.
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<AttachmentsQueryResult>
QueryService.ExecuteForCount(string, Query, RequestOptions, CancellationToken) Method
Gets a count of the number of features that satisfy the input query. param query Specifies the attributes and spatial filter of the query. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<System.Nullable<int>> ExecuteForCount(string url, dymaptic.GeoBlazor.Core.Model.Query query, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
query Query
requestOptions RequestOptions
Additional options to be used for the data request.
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<System.Nullable<System.Int32>>
QueryService.ExecuteForExtent(string, Query, RequestOptions, CancellationToken) Method
Gets the extent of the features that satisfy the input query. param query Specifies the attributes and spatial filter of the query. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Results.ExtentQueryResult?> ExecuteForExtent(string url, dymaptic.GeoBlazor.Core.Model.Query query, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
query Query
requestOptions RequestOptions
Additional options to be used for the data request.
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<ExtentQueryResult>
QueryService.ExecuteForIds(string, Query, RequestOptions, CancellationToken) Method
Executes a Query against the layer specified in the url parameter. param query Specifies the attributes and spatial filter of the query. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<long[]?> ExecuteForIds(string url, dymaptic.GeoBlazor.Core.Model.Query query, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
query Query
requestOptions RequestOptions
Additional options to be used for the data request.
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<System.Int64[]>
QueryService.ExecuteForTopCount(string, TopFeaturesQuery, RequestOptions, CancellationToken) Method
Executes a TopFeaturesQuery against a feature service and returns the count of features or records that satisfy the query. param topFeaturesQuery Specifies the attributes, spatial, temporal, and top filter of the query. The topFilter parameter must be set. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<System.Nullable<int>> ExecuteForTopCount(string url, dymaptic.GeoBlazor.Core.Model.TopFeaturesQuery topFeaturesQuery, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
topFeaturesQuery TopFeaturesQuery
requestOptions RequestOptions
Additional options to be used for the data request.
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<System.Nullable<System.Int32>>
QueryService.ExecuteForTopExtents(string, TopFeaturesQuery, RequestOptions, CancellationToken) Method
Executes a TopFeaturesQuery against a feature service and returns the Extent of features that satisfy the query. param topFeaturesQuery Specifies the attributes, spatial, temporal, and top filter of the query. The topFilter parameter must be set. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Results.ExtentQueryResult?> ExecuteForTopExtents(string url, dymaptic.GeoBlazor.Core.Model.TopFeaturesQuery topFeaturesQuery, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
topFeaturesQuery TopFeaturesQuery
requestOptions RequestOptions
Additional options to be used for the data request.
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<ExtentQueryResult>
QueryService.ExecuteForTopIds(string, TopFeaturesQuery, RequestOptions, CancellationToken) Method
Executes a TopFeaturesQuery against a feature service and returns an array of Object IDs of features that satisfy the query. param topFeaturesQuery Specifies the attributes, spatial, temporal, and top filter of the query. The topFilter parameter must be set. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<long[]?> ExecuteForTopIds(string url, dymaptic.GeoBlazor.Core.Model.TopFeaturesQuery topFeaturesQuery, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
topFeaturesQuery TopFeaturesQuery
requestOptions RequestOptions
Additional options to be used for the data request.
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<System.Int64[]>
QueryService.ExecuteQueryJSON(string, Query, RequestOptions, CancellationToken) Method
Executes a Query against the layer specified in the url parameter. param query Specifies the attributes and spatial filter of the query. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Model.FeatureSet?> ExecuteQueryJSON(string url, dymaptic.GeoBlazor.Core.Model.Query query, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
query Query
requestOptions RequestOptions
Additional options to be used for the data request.
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<FeatureSet>
QueryService.ExecuteQueryPBF(string, Query, RequestOptions, CancellationToken) Method
Executes a Query against the layer specified in the url parameter. param query Specifies the attributes and spatial filter of the query. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Model.FeatureSet?> ExecuteQueryPBF(string url, dymaptic.GeoBlazor.Core.Model.Query query, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
query Query
requestOptions RequestOptions
Additional options to be used for the data request.
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<FeatureSet>
QueryService.ExecuteRelationshipQuery(string, RelationshipQuery, RequestOptions, CancellationToken) Method
Executes a RelationshipQuery against the layer or table specified in the url parameter. param relationshipQuery Specifies relationship parameters for querying related features or records from a layer or a table. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Results.RelatedFeaturesQueryResult?> ExecuteRelationshipQuery(string url, dymaptic.GeoBlazor.Core.Model.RelationshipQuery relationshipQuery, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
relationshipQuery RelationshipQuery
requestOptions RequestOptions
Additional options to be used for the data request.
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<RelatedFeaturesQueryResult>
QueryService.ExecuteTopFeaturesQuery(string, TopFeaturesQuery, SpatialReference, RequestOptions, CancellationToken) Method
Executes a TopFeaturesQuery against a feature service and returns a FeatureSet once the promise resolves. param topFeaturesQuery Specifies the attributes, spatial, temporal, and top filter of the query. The topFilter parameter must be set. param requestOptions Additional options to be used for the data request. ArcGIS Maps SDK for JavaScript
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Model.FeatureSet?> ExecuteTopFeaturesQuery(string url, dymaptic.GeoBlazor.Core.Model.TopFeaturesQuery topFeaturesQuery, dymaptic.GeoBlazor.Core.Components.SpatialReference outSpatialReference, dymaptic.GeoBlazor.Core.Options.RequestOptions? requestOptions=null, System.Threading.CancellationToken cancellationToken=default(System.Threading.CancellationToken));
Parameters
url System.String
URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer).
topFeaturesQuery TopFeaturesQuery
outSpatialReference SpatialReference
The desired output spatial reference.
requestOptions RequestOptions
cancellationToken System.Threading.CancellationToken
The CancellationToken to cancel an asynchronous operation.
Returns
System.Threading.Tasks.Task<FeatureSet>
QueryService.OnExecuteForExtent(IJSStreamReference) Method
JS-Invoked response handler for the ExecuteForExtent request.
public System.Threading.Tasks.Task OnExecuteForExtent(Microsoft.JSInterop.IJSStreamReference jsStreamReference);
Parameters
jsStreamReference Microsoft.JSInterop.IJSStreamReference
Returns
QueryService.OnExecuteForTopExtents(IJSStreamReference) Method
JS-Invoked response handler for the ExecuteForTopExtents request.
public System.Threading.Tasks.Task OnExecuteForTopExtents(Microsoft.JSInterop.IJSStreamReference jsStreamReference);
Parameters
jsStreamReference Microsoft.JSInterop.IJSStreamReference
Returns
QueryService.OnExecuteQueryJSON(IJSStreamReference) Method
JS-Invoked response handler for the ExecuteQueryJSON request.
public System.Threading.Tasks.Task OnExecuteQueryJSON(Microsoft.JSInterop.IJSStreamReference jsStreamReference);
Parameters
jsStreamReference Microsoft.JSInterop.IJSStreamReference
Returns
QueryService.OnExecuteQueryPBF(IJSStreamReference) Method
JS-Invoked response handler for the ExecuteQueryPBF request.
public System.Threading.Tasks.Task OnExecuteQueryPBF(Microsoft.JSInterop.IJSStreamReference jsStreamReference);
Parameters
jsStreamReference Microsoft.JSInterop.IJSStreamReference
Returns
QueryService.OnExecuteRelationshipQuery(IJSStreamReference) Method
JS-Invoked response handler for the ExecuteRelationshipQuery request.
public System.Threading.Tasks.Task OnExecuteRelationshipQuery(Microsoft.JSInterop.IJSStreamReference jsStreamReference);
Parameters
jsStreamReference Microsoft.JSInterop.IJSStreamReference
Returns
QueryService.OnExecuteTopFeaturesQuery(IJSStreamReference) Method
JS-Invoked response handler for the ExecuteTopFeaturesQuery request.
public System.Threading.Tasks.Task OnExecuteTopFeaturesQuery(Microsoft.JSInterop.IJSStreamReference jsStreamReference);
Parameters
jsStreamReference Microsoft.JSInterop.IJSStreamReference