Method IdentifyLayersAsync

IdentifyLayersAsync(Point, Double, Boolean)

Initiates an identify operation on all layers in the view which will return the single visible topmost geoelement per layer only.

Declaration

public Task<IReadOnlyList<IdentifyLayerResult>> IdentifyLayersAsync(Point screenPoint, double tolerance, bool returnPopupsOnly)

Parameters

Type	Name	Description
Xamarin.Forms.Point	screenPoint	The location on which to run identify in screen coordinates.
System.Double	tolerance	The width and height in screen coordinates of the square centered on screen coordinate that will be used in the identify.
System.Boolean	returnPopupsOnly	Controls whether the graphics property of the result is populated.

Returns

Type	Description
System.Threading.Tasks.Task<System.Collections.Generic.IReadOnlyList<IdentifyLayerResult>>	A task that represents the asynchronous identify operation on all layers in the view The value of the TResult parameter contains a read-only collection of IdentifyLayerResult in top to bottom order.

Applies to

Platforms and versions

Target	Versions
.NET Standard 2.0	100.3 - 100.15
Xamarin.Android	100.0 - 100.15
Xamarin.iOS	100.0 - 100.15
UWP	100.0 - 100.15

IdentifyLayersAsync(Point, Double, Boolean, CancellationToken)

Initiates an identify operation on all layers in the view which will return the single visible topmost geoelement per layer only.

Declaration

public Task<IReadOnlyList<IdentifyLayerResult>> IdentifyLayersAsync(Point screenPoint, double tolerance, bool returnPopupsOnly, CancellationToken cancellationToken)

Parameters

Type	Name	Description
Xamarin.Forms.Point	screenPoint	The location on which to run identify in screen coordinates.
System.Double	tolerance	The width and height in screen coordinates of the square centered on screen coordinate that will be used in the identify.
System.Boolean	returnPopupsOnly	Controls whether the graphics property of the result is populated.
System.Threading.CancellationToken	cancellationToken	A cancellation token that can be used by other objects or threads to receive notice of cancellation.

Returns

Type	Description
System.Threading.Tasks.Task<System.Collections.Generic.IReadOnlyList<IdentifyLayerResult>>	A task that represents the asynchronous identify operation on all layers in the view The value of the TResult parameter contains a read-only collection of IdentifyLayerResult in top to bottom order.

Applies to

Platforms and versions

Target	Versions
.NET Standard 2.0	100.3 - 100.15
Xamarin.Android	100.0 - 100.15
Xamarin.iOS	100.0 - 100.15
UWP	100.0 - 100.15

IdentifyLayersAsync(Point, Double, Boolean, Int64)

Initiates an identify operation on all layers in the view.

Declaration

public Task<IReadOnlyList<IdentifyLayerResult>> IdentifyLayersAsync(Point screenPoint, double tolerance, bool returnPopupsOnly, long maximumResultsPerLayer)

Parameters

Type	Name	Description
Xamarin.Forms.Point	screenPoint	The location on which to run identify in screen coordinates.
System.Double	tolerance	The width and height in screen coordinates of the square centered on screen coordinate that will be used in the identify.
System.Boolean	returnPopupsOnly	Controls whether the graphics property of the result is populated.
System.Int64	maximumResultsPerLayer	The maximum number of geoelements to return per layer.

Returns

Type	Description
System.Threading.Tasks.Task<System.Collections.Generic.IReadOnlyList<IdentifyLayerResult>>	A task that represents the asynchronous identify operation on all layers in the view The value of the TResult parameter contains a read-only collection of IdentifyLayerResult in top to bottom order.

Applies to

Platforms and versions

Target	Versions
.NET Standard 2.0	100.3 - 100.15
Xamarin.Android	100.0 - 100.15
Xamarin.iOS	100.0 - 100.15
UWP	100.0 - 100.15

IdentifyLayersAsync(Point, Double, Boolean, Int64, CancellationToken)

Initiates an identify operation on all layers in the view.

Declaration

public Task<IReadOnlyList<IdentifyLayerResult>> IdentifyLayersAsync(Point screenPoint, double tolerance, bool returnPopupsOnly, long maximumResultsPerLayer, CancellationToken cancellationToken)

Parameters

Type	Name	Description
Xamarin.Forms.Point	screenPoint	The location on which to run identify in screen coordinates.
System.Double	tolerance	The width and height in screen coordinates of the square centered on screen coordinate that will be used in the identify.
System.Boolean	returnPopupsOnly	Controls whether the graphics property of the result is populated.
System.Int64	maximumResultsPerLayer	The maximum number of geoelements to return per layer.
System.Threading.CancellationToken	cancellationToken	A cancellation token that can be used by other objects or threads to receive notice of cancellation.

Returns

Type	Description
System.Threading.Tasks.Task<System.Collections.Generic.IReadOnlyList<IdentifyLayerResult>>	A task that represents the asynchronous identify operation on all layers in the view The value of the TResult parameter contains a read-only collection of IdentifyLayerResult in top to bottom order.

Applies to

Platforms and versions

Target	Versions
.NET Standard 2.0	100.3 - 100.15
Xamarin.Android	100.0 - 100.15
Xamarin.iOS	100.0 - 100.15
UWP	100.0 - 100.15