CanSendBackward(GraphicsLayer,IEnumerable<Element>) Method

In This Topic

Checks whether the given elements can be moved back within their parent's element collection. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public static bool CanSendBackward( 
   GraphicsLayer graphicsLayer,
   IEnumerable<Element> elements
)

Public Overloads Shared Function CanSendBackward( _
   ByVal graphicsLayer As GraphicsLayer, _
   ByVal elements As IEnumerable(Of Element) _
) As Boolean

Parameters

graphicsLayer
elements: The elements to check

Return Value

True if the elements can be moved back.

Exceptions

Exception	Description
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.
System.ArgumentException	elements cannot be null or empty

Remarks

Element z order is relative to the element collection within their parent. The bottom element has a z order of 0. The top element has a z order of N - 1. All elements must have the same parent or false is returned. If any one of the elements is already at the bottom of their parent's element collection, false is returned. False can also be returned if any of the elements' z order cannot be checked (i.e. an element is not a graphic element, a group element, does not belong to the graphics layer, etc.).
The map view displaying the graphics layer should be initialized.

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

GraphicsLayerExtensions Class
GraphicsLayerExtensions Members
Overload List

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