I have managed to find the layer table in the cad link - now I am stuck on how to control the visibility of the cadlink layer in the active view... As a newbie to revit API and C# this has taken a surprising amount of time even to get this far... so my apologies if this is a stupid question. The API documentation doesn't really give a high level overview of how things like cadLinks are stored in the database - if such an overview exists I would love to read it...
public class Command : IExternalCommand
{
public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication uiapp = commandData.Application;
UIDocument uidoc = uiapp.ActiveUIDocument;
Application app = uiapp.Application;
Document doc = uidoc.Document;
var collector = new FilteredElementCollector(doc);
var cadLinks = collector
.OfClass(typeof(CADLinkType))
.OfType<CADLinkType>()
.Where(x => x.IsExternalFileReference())
.ToList();
foreach (var cadLink in cadLinks)
{
Debug.Print(cadLink.Name);
// the cadLink layer table in in Category->Subcategory
CategoryNameMap linklayertable = cadLink.Category.SubCategories;
foreach (Category layer in linklayertable )
{
string layerName = layer.Name;
Debug.Print(layerName);
}
}
using (Transaction tx = new Transaction(doc))
{
tx.Start("Transaction Name");
tx.Commit();
}
return Result.Succeeded;
}
}
