ArcGIS Pro 2.6 API Reference Guide
IsReady Property (LayoutView)

ArcGIS.Desktop.Layouts Namespace > LayoutView Class : IsReady Property
Gets a value that indicates whether the LayoutView can be accessed. This property is false while the layout view processes major operations.
Syntax
public bool IsReady {get;}
Public ReadOnly Property IsReady As Boolean
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

LayoutView Class
LayoutView Members