Layer.GetFeatures Methods
Gets features from the layer and any child layers.
Overload List
| Name | Description | |
|---|---|---|
| Public method | GetFeatures(Crs crs) | Gets all features from the layer and any child layers. |
| Public method | GetFeatures(Crs crs, FeatureQuery featureQuery) | Gets all features from matching the search criteria from the layer and any child layers. |
| Public method | GetFeatures(Crs crs, FeatureQuery featureQuery, System.Boolean activeLayersOnly) | Gets all features from matching the search criteria from the layer and any child layers. |
GetFeatures(Crs crs)
Gets all features from the layer and any child layers.Syntax
public FeatureEnumerator GetFeatures (
Crs crs
)Parameters
All returned features will be reprojected to this coordinate reference system.
Return Value
An enumerator that iterates through all features from the layer.
Remarks
No features will be returned for layers or child layers that are not active with the given parameters. This happens if the Enabled flag is False, if a Condition evaluates to False, or if the MinScale property is greater than 0.
Example
// Get the number of features in the layer
public static int GetNumberOfFeaturesInLayer(Layer layer)
{
// Get the features from the layer
IEnumerable<Feature> features = layer.GetFeatures(Crs.Wgs84LongLat);
// Return the number of features
return features.Count<Feature>();
}
GetFeatures(Crs crs, FeatureQuery featureQuery)
Gets all features from matching the search criteria from the layer and any child layers.Syntax
public FeatureEnumerator GetFeatures (
Crs crs,
FeatureQuery featureQuery
)Parameters
All returned features will be reprojected to this coordinate reference system. The query rectangle specified in the featureQuery parameter should also be specified in this coordinate reference system.
Limits the number of returned features; features not matching this query are discarded. See the FeatureQuery class for details.
Return Value
An enumerator that iterates through all features matching the search criteria.
Remarks
No features will be returned for layers or child layers that are not active with the given parameters. This happens if the Enabled flag is False, if a Condition evaluates to False, or if the resolution specified in the query corresponds to a scale that is outside the scale interval of the layer (MinScale and MaxScale).
GetFeatures(Crs crs, FeatureQuery featureQuery, System.Boolean activeLayersOnly)
Gets all features from matching the search criteria from the layer and any child layers.Syntax
public FeatureEnumerator GetFeatures (
Crs crs,
FeatureQuery featureQuery,
System.Boolean activeLayersOnly
)Parameters
All returned features will be reprojected to this coordinate reference system. The query rectangle specified in the featureQuery parameter should also be specified in this coordinate reference system.
Limits the number of returned features; features not matching this query are discarded. See the FeatureQuery class for details.
Specifies if features should be returned for all layers, or just those that are active.
Return Value
An enumerator that iterates through all features matching the search criteria.
Remarks
If activeLayersOnly is True, no features will be returned for layers or child layers that are not active with the given parameters. This happens if the Enabled flag is False, if a Condition evaluates to False, or if the resolution specified in the query corresponds to a scale that is outside the scale interval of the layer (MinScale and MaxScale).
If activeLayersOnly is False, features will be returned for all layers, even those that are currently inactive.
Platforms
Windows, Linux, Android