activeBuildOperation

The pyramid build operation currently running for the owning raster. This property is null when no pyramid build operation is in progress for the raster. When a build is in progress, this property returns the current operation so that callers can observe progress, request cancellation, or await the result.

This property is set when a build operation starts and is cleared when that operation completes, fails, or is canceled. When this value changes, the RasterPyramids.activeBuildOperation event is fired.