IsBackgroundCalculationInProgress Method

Indicates whether there are any background calculations in progress for this document.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: (
Since: 2019.1


public bool IsBackgroundCalculationInProgress()
Visual Basic
Public Function IsBackgroundCalculationInProgress As Boolean
Visual C++
bool IsBackgroundCalculationInProgress()

Return Value

Returns true if the document has any data calculation in progress and false otherwise.


When a document has background calculations in progress, users cannot perform the following operations:
  • Save/Close the document.
  • Export/Print the document.
  • Synchronize to central, in worksharing environment.
  • Create a steel element.
  • Copy/Mirror/Rotate a steel element.
  • Edit the sketch of plate element.
  • Edit a custom connection.

See Also