Document Regenerate Method

Updates the elements in the Revit document to reflect all changes.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public void Regenerate()

Public Sub Regenerate

public:
void Regenerate()

member Regenerate : unit -> unit

Exceptions

Exception	Condition
RegenerationFailedException	Thrown when the operation fails. If regeneration fails, there is posted error of severity DocumentCorruption that will be delivered to the end user at the end of transaction explaining what specifically has happened. If regeneration has failed, document is corrupted and even reading from it is illegal. Code that called regeneration and got this exception should not catch and ignore it - instead, it should do nothing but internal cleanup and return control to the owner of currently active transaction/subtransaction, which must be aborted.
InvalidOperationException	Modification of the document is forbidden. Typically, this is because there is no open transaction; consult documentation for Document.IsModified for other possible causes.

Exception

Condition

RegenerationFailedException

Thrown when the operation fails.

If regeneration fails, there is posted error of severity DocumentCorruption that will be delivered to the end user at the end of transaction explaining what specifically has happened.
If regeneration has failed, document is corrupted and even reading from it is illegal.
Code that called regeneration and got this exception should not catch and ignore it - instead, it should do nothing but internal cleanup and return control to the owner of currently active transaction/subtransaction, which must be aborted.

InvalidOperationException

Modification of the document is forbidden. Typically, this is because there is no open transaction; consult documentation for Document.IsModified for other possible causes.

Remarks

Use this method to force update to the document after a group of changes. Note that when a transaction is committed there is an automatic call to regenerate the document.

Example

C++

FamilyInstance instance = doc.Create.NewFamilyInstance(new XYZ(15, 20, 0), familySymbol, StructuralType.NonStructural);
FamilyInstance instance2 = doc.Create.NewFamilyInstance(new XYZ(25, 30, 0), familySymbol, StructuralType.NonStructural);
// faster to create multiple instances without calling Regenerate after each one

LocationPoint point = instance.Location as LocationPoint;
// this data is incorrect because the new geometry has not yet been regenerated

doc.Regenerate();
point = instance.Location as LocationPoint;
// now it is correct

Dim instance As FamilyInstance = doc.Create.NewFamilyInstance(New XYZ(15, 20, 0), familySymbol, StructuralType.NonStructural)
Dim instance2 As FamilyInstance = doc.Create.NewFamilyInstance(New XYZ(25, 30, 0), familySymbol, StructuralType.NonStructural)
' faster to create multiple instances without calling Regenerate after each one

Dim point As LocationPoint = TryCast(instance.Location, LocationPoint)
' this data is incorrect because the new geometry has not yet been regenerated

doc.Regenerate()
point = TryCast(instance.Location, LocationPoint)
' now it is correct

Reference

Document Class

Autodesk.Revit.DB Namespace

Regenerate Method

Document Regenerate Method

Reference

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