topic Re: Modify an existing Revit file reference in an assembly. in Inventor Programming Forum

Modify an existing Revit file reference in an assembly.

NPieper — Mon, 22 Feb 2021 14:05:37 GMT

I have an Inventor C# AddIn.
How can the Inventor API in an assembly (.iam)
change the file reference to a Revit file (.rvt)?
So I have an IAM in which a "D:\Old.rvt" is embedded.
I want to change the reference in the IAM to "D:\New.rvt".

"...Descriptor.ReplaceReference" does not work.

And with the following, the "Delete" method does not work:

AssemblyDocument oAss = ...

dynamic assemblyComponentDefinition = oAss.ComponentDefinition;
dynamic importedComponents = assemblyComponentDefinition.ImportedComponents;

dynamic importedComponentDefinition = importedComponents.CreateDefinition("D:\New.rvt");

if(importedComponents.Count > 0)
{
dynamic ic = importedComponents.Item(1);
ic.Delete(); // Method not implemented!
}

dynamic importedComp = importedComponents.Add(importedComponentDefinition);

Re: Modify an existing Revit file reference in an assembly.

ruthsteed — Tue, 02 Mar 2021 00:33:37 GMT

Unfortunately, there is no way to directly replace the .rvt referenced this way. Instead, you will need to replace the ComponentOccurrence that uses the reference. This means you need to import the new reference and then do the replacement. Here is a VBA sample that assumes you have already imported the replacement file:

Sub DoReplace(oAssy As AssemblyComponentDefinition, oldRvt As ImportedRVTComponent, newRvt As ImportedRVTComponent) Dim occs As ComponentOccurrences: Set occs = oAssy.Occurrences Dim oldOcc As ComponentOccurrence Dim newOcc As ComponentOccurrence Dim occ As ComponentOccurrence For Each occ In occs If occ.IsAssociativelyImported Then Dim impComp As ImportedRVTComponent: Set impComp = occ.ImportedComponent If impComp Is oldRvt Then Set oldOcc = occ ElseIf impComp Is newRvt Then Set newOcc = occ End If If Not oldOcc Is Nothing And Not newOcc Is Nothing Then oldOcc.Replace newOcc.Definition.Document.FullFileName, True Exit Sub End If End If Next occ End Sub

Re: Modify an existing Revit file reference in an assembly.

YuhanZhang — Thu, 04 Mar 2021 07:22:34 GMT

Can you provide non-confidential data and your code for us to reproduce the failure when replace a Revit reference? And which Inventor are you using?

Re: Modify an existing Revit file reference in an assembly.

NPieper — Thu, 04 Mar 2021 10:17:24 GMT

Inventor 2021.2.2 Build 289 (german) was used.

In the appendix are example files and an example cs code with questions.

Re: Modify an existing Revit file reference in an assembly.

YuhanZhang — Thu, 11 Mar 2021 02:01:12 GMT

I can reproduce the issue here, I logged a wish story (INVGEN-51051) for this. Before we get this implemented for ComponentOccurrence.Replace/Replace2, can you try if below workaround works for you, open your assembly data, and run below VBA code(change the Revit file path before running it):

Sub UpdateRevitReference() Dim oDoc As AssemblyDocument Set oDoc = ThisApplication.ActiveDocument Dim oFD As FileDescriptor Set oFD = oDoc.File.ReferencedFileDescriptors(1) Debug.Print oFD.FullFileName Debug.Print oFD.FullFileName oFD.ReplaceReference "C:\Temp\IVTest\Revit\Railing_Samples_New.rvt" Dim oIC As ImportedComponent Set oIC = oDoc.ComponentDefinition.ImportedComponents(1) Dim oDef As ImportedRVTComponentDefinition Set oDef = oIC.Definition Debug.Print oDef.Imported3DView oDef.Imported3DView = "{3D}" Set oFD = oDoc.File.ReferencedFileDescriptors(1) Debug.Print oFD.FullFileName End Sub

Re: Modify an existing Revit file reference in an assembly.

NPieper — Thu, 11 Mar 2021 09:22:47 GMT

Yes, this workaround works.