ArcGIS Pro 3.1 API Reference Guide
ArcGIS.Desktop.Layouts Namespace / Element Class / SetCustomProperties Method
The collection of custom properties

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    SetCustomProperties Method (Element)
    In This Topic
    Sets multiple CustomProperty values for the element. This method must be called on the MCT. Use QueuedTask.Run.
    Syntax
    public void SetCustomProperties( 
       IEnumerable<CIMStringMap> customProperties
    )
    Public Sub SetCustomProperties( _
       ByVal customProperties As IEnumerable(Of CIMStringMap) _
    ) 

    Parameters

    customProperties
    The collection of custom properties
    Exceptions
    ExceptionDescription
    This method must be called within the lambda passed to QueuedTask.Run.
    Remarks
    This method was created so developers have a way to uniquely assign a value or multiple values to an element that can not be changed in the UI and therefore provides a predictable way to find an element. You can overwrite values simply be reentering the same key with a different value in the input collection. There are no methods to remove keys.
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3.0 or higher.
    See Also