### - Please help for getting all linked AutoCAD files in Revit

[pvirke]

### - Please help for getting all linked AutoCAD files in Revit

Hi All,

I am trying to get all the linked AutoCAD files in Revit Api

The way I am coding is like the following:
##############################################

// Find all linked AutoCAD Files in the project
FilteredElementCollector cadLinkCollector = new FilteredElementCollector(doc);
cadLinkCollector.OfClass(typeof(ImportInstance)).Cast<ImportInstance>().Where(e => ((ImportInstance)e).IsLinked && ((ImportInstance)e).Category.Name == "Imported Categories");
IList<Element> cadLinks = cadLinkCollector.ToElements();

##############################################

But I think something is wrong for the collector method.

Please help me !!!!!!!!!!!!!!!!!!!!!!

[Yien_Chao]

hello

Where(e => ((ImportInstance)e).IsLinked && ((ImportInstance)e).Category.Name == "Imported Categories")

1. what is the "e" after ImportInstance??

2. Category.Name gives the CAD file name like A010.DWG not "Imported Categories"

[pvirke]

1. e is the ImportInstance

I can make a definition for it but it won't affect anything;

 2. Category.Name should not be the cad file name, and it should be like "CADLink" or "Imported Categories".

What I need is that find out all the linked AutoCAD files in the model and make a Ilist<Element>...

[pvirke]

Thanks for your help! Yien!

[Yien_Chao]

Strange. On my side it really is the cad file's name.

[pvirke]

You're right Yien!

Category.Name is "Link Name" in Revit!
Then how can I get the linked CAD files in Revit?

[Sean_Page]

Just know that if a link is Not Loaded, then the Category will return a Null.