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Showing content from https://developers.arcgis.com/ios/api-reference/interface_a_g_s_shapefile_feature_table.html below:

ArcGIS Runtime SDK for iOS: AGSShapefileFeatureTable Class Reference

A shapefile dataset containing geographic features or non-spatial records.

Instances of this class respresent a Shapefile dataset that could include either geographic features. You can query the dataset using attribute or spatial criteria, and if permitted, also edit the data. You can display the geographic features on a map using AGSFeatureLayer.

A shapefile dataset consists of at least three files (.shp, .shx, .dbf), and may include many others. Each of the component files of a shapefile must be smaller than 2 GB. If the minimum required files are not present (or larger than 2 GB), the table will fail to load. If the file permissions are read-only, features cannot be edited. On-the-fly projection of a shapefile is only supported if an associated .prj file is present. Otherwise, the features are assumed to have the same spatial reference as the map. A default renderer is used to render a shapefile feature table in a feature layer. In most cases, the default should be replaced with a custom renderer.

License Restrictions:: This feature requires a Standard license for production deployment. No license required in Developer mode for testing.

Since: 100.2

◆ cancelLoad

Cancels loading if it is in progress, otherwise it does nothing. This should be called carefully because other objects could be waiting for loadWithCompletion: or retryLoadWithCompletion: to complete and this will call them all back with the error of NSUserCancelledError

Since: 100

◆ canDeleteFeature:

Indicates whether the source allows this particular feature to be deleted. The method first checks to verify if the source is capable of deleting any features in general. It also checks specific ownership-based access control policies of the source to see if the user attempting to perform the operation has persmissions to delete this particular feature.

Parameters: feature Can be nil, in which case, this method only checks if the source is capable of deleting any features in general

Returns: A boolean value

Since: 100

◆ canUpdateFeature:

Indicates whether the source allows updating this particular feature. The method first checks to verify if the source is capable of updating any features in general. It also checks specific ownership-based access control policies of the source to see if the user attempting to perform the operation has persmissions to edit this patricular feature.

Parameters: feature Can be nil, in which case, this method only checks if the source is capable of updating any features in general

Returns: A boolean value

Since: 100

◆ close

Close connection to the shapefile on disk. All use of this instance should cease before closing it. For example: remove feature layers from maps, and release feature tables. Any attempt to access this instance after it is closed will fail, resulting in an error. After closing the connection, the shapefile file can be deleted.

Since: 100.3

◆ createFeature

Create a new, empty feature. Note, the new feature is only available in memory at this point, it is not committed to the dataset.

Returns: empty feature

Since: 100

Note: The feature will need to be explicitly added to the dataset. See addFeature:completion:

◆ createFeatureWithAttributes:geometry: - (AGSFeature *) createFeatureWithAttributes: (NSDictionary< NSString *, id > *) attributes geometry: (nullable AGSGeometry *) geometry

Create a new feature with the provided attribute values and, optionally, geometry. Note, the new feature is only available in memory at this point, it is not committed to the dataset.

Parameters: attributes for the feature geometry for the feature

Returns: feature

Since: 100

Note: The feature will need to be explicitly added to the dataset. See addFeature:completion:

◆ doCancelLoading ◆ doStartLoading: - (void) doStartLoading: (BOOL) retrying ◆ fieldForName: - (nullable AGSField *) fieldForName: (NSString *) fieldName

Convenience method to getting a field object given its name

Parameters: fieldName The name of the field.

Returns: field

Since: 100

◆ loadDidFinishWithError: - (void) loadDidFinishWithError: (nullable NSError *) error ◆ loadWithCompletion: - (void) loadWithCompletion: (nullable void(^)(NSError *__nullable error)) completion requiredinherited

Loads data for the object asynchronously. The completion block is invoked upon completion.

You can call this method any number of times, however only one attempt is made to load the data. If it is already loading, it will just continue to load (i.e. not force a reload). If it has already loaded successfully, the completion block will be invoked right away. If it has already failed to load, the completion block will be invoked right away with error previously encountered. This method supports multiple callers and will call them all back on completion. However, each caller's completion block will be invoked once and only once.

Parameters: completion block that is invoked when object loads successfully or fails to load. An error is passed to the block if the object fails to load.

Note: The completion block is always invoked on the main thread.

Since: 100

See also: - cancelLoad to cancel loading; - retryLoadWithCompletion: to force reload

◆ onLoadStatusChanged - (void) onLoadStatusChanged ◆ queryExtentWithParameters:completion:

Query the dataset to find the geographic extent covering matched features or records.

Parameters: parameters representing the query criteria completion The block that is called when the query is complete

Returns: operation which can be canceled

See also: AGSFeatureServiceSessionType

Since: 100.2

◆ queryFeatureCountWithParameters:completion: - (id<AGSCancelable>) queryFeatureCountWithParameters: (AGSQueryParameters *) parameters completion: (void(^)(NSInteger count, NSError *__nullable error)) completion

Query the dataset to find the number of matched features or records.

Parameters: parameters representing the query criteria completion The block that is called when the query is complete

Returns: operation which can be canceled

See also: AGSFeatureServiceSessionType

Since: 100.2

◆ queryFeaturesWithParameters:completion:

Query the dataset to find specific features or records.

Parameters: parameters representing the query criteria completion The block that is called when the query is complete

Returns: operation which can be canceled

See also: AGSFeatureServiceSessionType

Since: 100

◆ queryStatisticsWithParameters:completion:

Query the dataset to compute statistics on matched features or records.

Parameters: parameters representing the query criteria completion The block that is called when the query is complete

Returns: operation which can be canceled

See also: AGSFeatureServiceSessionType

Since: 100.2

◆ retryLoadWithCompletion: - (void) retryLoadWithCompletion: (nullable void(^)(NSError *__nullable error)) completion requiredinherited

Tries to reload when an object has failed to load. This method should be called judiciously. It should be called when:

you didn't have network connectivity earlier when it failed and you want to retry now that you have connectivity
the server was down earlier when it failed and you want to retry
the request is taking too long and you want to cancel it and retry, in which case you will first call cancelLoad and then this method

If the data hasn't started loading, it will start loading. If it is already loading, it will just continue to load. If it has already loaded successfully, calls back right away. If it has already failed to load, tries again. This method supports multiple callers and will call them all back on completion. However, each caller's completion block will be invoked once and only once.

Parameters: completion block that is invoked when object loads successfully or fails to load. An error is passed to the block if the object fails to load.

Note: The completion block is always invoked on the main thread.

Since: 100

◆ canAddFeature readnonatomicassigninherited

Indicates whether the source supports adding new features.

Since: 100

◆ canEditGeometry readnonatomicassigninherited

Indicates whether the source supports updating geometry of existing features.

Since: 100

◆ displayName - (NSString*) displayName readwritenonatomiccopyinherited

User-friendly name that can be displayed in the UI (for example in a Table of Contents)

Since: 100.3

◆ editable readnonatomicassigninherited

Indicates whether the dataset can be edited. For details on which fine-grained editing capabilites are supported, refer to canUpdateFeature: and canDeleteFeature:

Since: 100

◆ extent readnonatomicstronginherited

The extent of the dataset.

Since: 100

◆ featureLayer readnonatomicweakinherited ◆ fields readnonatomiccopyinherited

Array of AGSField objects representing the fields (columns) in the dataset.

See also: AGSField

Since: 100

◆ fileURL

Path to the shapefile dataset on disk.

Since: 100.2

◆ geometryType readnonatomicassigninherited

The type of geometry used by geographic feautres. Only applicable if hasGeometry is true.

Since: 100

◆ hasGeometry readnonatomicassigninherited

Indicates whether the dataset contains a geometry field (column). If YES, the dataset contains geographic features. If NO, the dataset contains non-spatial records, similar to a database table.

Since: 100

◆ hasM readnonatomicassigninherited

Indicates whether features may contain M values

Since: 100.2

◆ hasZ readnonatomicassigninherited

Indicates whether features may contain Z values

Since: 100.2

◆ layer readnonatomicweakinherited ◆ loadError readnonatomicstronginherited

The error that was encountered during the most recent load operation. Will be nil if the operation succeeded.

Since: 100

◆ loadStatus readrequirednonatomicassigninherited

Status of the load operation.

Since: 100

◆ numberOfFeatures - (NSInteger) numberOfFeatures readnonatomicassigninherited

The total number of features or records in the dataset.

Since: 100

◆ popupDefinition readwritenonatomicstronginherited

The AGSPopupDefinition associated with the popup source. This property will be nil if an error occurs or if the popup source is not associated with a popup definition.

Since: 100

◆ popupEnabled readwriterequirednonatomicassigninherited

Indicates whether popups are enabled on this source.

Since: 100

◆ shapefileInfo

Metadata of the shapefile dataset. Only available if the shapefile dataset contains a .xml file.

Since: 100.2

◆ spatialIndexEnabled - (BOOL) spatialIndexEnabled readnonatomicassign

Indicates whether or not the shapefile uses spatial indexes.

ArcGIS for Desktop can be used to create spatial indexes for shapefiles, stored in .sbn and .sbx files. Having a current spatial index ensures that a high level of performance is maintained when drawing and working with the shapefile's features and that the shapefile's extent is accurate.

Since: 100.2

◆ spatialReference readnonatomicstronginherited

The spatial reference of the dataset.

Since: 100

◆ tableName readnonatomiccopyinherited

Name of the dataset.

Since: 100

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