ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / Layer Class / SetTransparency Method
Transparency value.

In This Topic
    SetTransparency Method
    In This Topic
    Sets the transparency of the layer. 100 being fully transparent and 0 means opaque. This method must be called on the MCT. Use QueuedTask.Run.
    Syntax
    public void SetTransparency( 
       double transparency
    )
    Public Sub SetTransparency( _
       ByVal transparency As Double _
    ) 

    Parameters

    transparency
    Transparency value.
    Exceptions
    ExceptionDescription
    This method or property must be called within the lambda passed to QueuedTask.Run.
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also