Property Overlays

Overlays

Gets or sets the XAML elements that can be used to overlay on the map, and placed using the ViewOverlayAnchor attached property.

Declaration

public OverlayItemsControl Overlays { get; set; }

Property Value

Type	Description
OverlayItemsControl	The XAML elements that can be used to overlay on the map, and placed using the ViewOverlayAnchor attached property.

Remarks

The term 'overlay' in the ArcGIS Maps SDK for .NET may be new to some developers. In other Esri SDK's the concept of an overlay is often termed a 'MapTip'. A MapTip is a user-assistance component that displays an on-screen description of a map feature when the mouse is paused over or a users taps on a feature.

In order to maintain good performance in your application it is recommended to not place too many or overly complex UIElement objects within the UIElementCollection. These graphical UIElement objects are drawn via software rendering of the Operating System and performance can vary across devices. Keeping UIElements to a minimum, say under 20, should not impact the performance of your application when setting the MapView.Overlays Property.

Applies to

Platforms and versions

Target	Versions
.NET Windows	100.13 - 200.5
.NET Framework	100.0 - 200.5