Extract RFA files from document using Revit api

[bharathkumarp]

Hi there,

i am trying to get RFA file from current document, but i am getting this error :

Autodesk.Revit.Exceptions.InvalidOperationException: 'The document is currently modifiable! Close the transaction before calling EditFamily.'

But i am not started any transaction in code.

I used the above code in external event.

code : 

FilteredElementCollector collector = new FilteredElementCollector(doc);
ICollection<Element> plantElements = collector.OfCategory(BuiltInCategory.OST_Planting).ToElements();

foreach (var element in plantElements)
{
Family fam = null;
if (element is FamilyInstance)
{
familyName = (element as FamilyInstance).Symbol.FamilyName;
objectName = (element as FamilyInstance).Symbol.Name;
fam = (element as FamilyInstance).Symbol.Family;
}
if (element is FamilySymbol)
{
familyName = (element as FamilySymbol).FamilyName;
objectName = (element as FamilySymbol).Name;
fam = (element as FamilySymbol).Family;
}

Document familyEditorDocument = fam.Document.EditFamily(fam);
familyEditorDocument.SaveAs(@"D:\" + fam.Name + ".rfa");
familyEditorDocument.Close();

this part of code available inside the External event.

Any help is appreciated.

Regards,

Bharath

[scgq425]

Dear bharathkumar: 

  if u want to save as thr family document , you can use function Family.SaveAs() .  In  u code , like to saveas the docuemnt of familyDoc , so throw the exception .

[bharathkumarp]

Hi ,

Thanks of you reply.
I am not quite understand your answer.
Can you please give me any example ? if possible.

[moturi.magati.george]

Hi @bharathkumarp,

This might be a good place to start since the question has come up multiple times on this forum.
https://forums.autodesk.com/t5/revit-api-forum/how-to-save-family-to-a-new-file/m-p/12162514#M73339

[Kennan.Chen]

I have a code snippet to test the functionality of "Revit.Async," which can serve as an example of saving a "Family" as an RFA file.

You can find the code here:

Revit.Async/TestCommand/SaveFamilyCommand.cs at master · KennanChan/Revit.Async (github.com)