SetLockedAspectRatio Method

Sets the locked aspect ratio value of the element. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public void SetLockedAspectRatio( 
   bool lockedAspectRatio
)

Public Sub SetLockedAspectRatio( _
   ByVal lockedAspectRatio As Boolean _
)

Parameters

lockedAspectRatio: Double

Exceptions

Exception	Description
ArcGIS.Core.CalledOnWrongThreadException	This method must be called within the lambda passed to QueuedTask.Run.
System.InvalidOperationException	This element requires its mapview to be active

Remarks

When set to true, this means if element width is set, then the element height will be automatically adjusted appropriately. The same is true if height were modified, then width would automatically be adjusted.
Placement for an element contained in graphics layer requires the mapview be active.

Example

//Modify an element's aspect ratio. 

//Perform on the worker thread
await QueuedTask.Run(() =>
{
  bool elmLocked = element.GetLockedAspectRatio();
  elmLocked = false;  //Turn off the locked state.

  element.SetLockedAspectRatio(elmLocked); //You don't have to get to set; a shortcut would be: element.SetLockedAspectRatio(false);
});

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

Reference

Element Class
Element Members