ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping.Voxel Namespace / LockedSectionDefinition Class / IsVisible Property
Example Version

IsVisible Property (LockedSectionDefinition)
Gets and sets whether the section is visible.
Syntax
public bool IsVisible {get; set;}
Example
Update Locked Section Visibility
//var voxelLayer = ... ;
//Must be on the QueuedTask.Run()

if (voxelLayer.Visualization != VoxelVisualization.Surface)
    voxelLayer.SetVisualization(VoxelVisualization.Surface);
voxelLayer.SetLockedSectionContainerExpanded(true);
voxelLayer.SetLockedSectionContainerVisibility(true);

var locked_sections = voxelLayer.GetLockedSections().Where(ls => !ls.IsVisible);

//Make them visible
foreach (var locked_section in locked_sections)
{
    locked_section.IsVisible = true;
    //apply change
    voxelLayer.UpdateSection(locked_section);
}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also