public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication app = commandData.Application;
Document doc = app.ActiveUIDocument.Document;
List <string> a = new List <string>();
FilteredElementCollector families;
#region 3.1.a Retrieve and iterate over all Family objects in document:
//
// retrieve all family elements in current document:
//
families = new FilteredElementCollector(doc);
families.OfClass(typeof(Family));
foreach (Family f in families)
{
// Get its category name; notice that the Category property is not
// implemented for the Family class; use FamilyCategory instead;
// notice that that is also not always implemented; in that case,
// use the workaround demonstrated below, looking at the contained
// family symbols' category:
a.Add(string.Format("Name={0}; Category={1}; FamilyCategory={2}",
f.Name,
((null == f.Category) ? "?" : f.Category.Name),
((null == f.FamilyCategory) ? "?" : f.FamilyCategory.Name)));
}
#endregion // 3.1.a
string msg = "{0} standard familie{1} are loaded in this model{2}";
LabUtils.InfoMsg(msg, a);
// Loop through the collection of families, and now look at
// the child symbols (types) as well. These symbols can be
// used to determine the family category.
foreach (Family f in families)
{
string catName;
bool first = true;
// Loop all contained symbols (types):
//foreach( FamilySymbol s in f.Symbols ) // 2014
foreach (ElementId id in f.GetFamilySymbolIds()) // 2015
{
FamilySymbol s = doc.GetElement(id) as FamilySymbol;
// you can determine the family category from its first symbol.
if (first)
{
first = false;
#region 3.1.b Retrieve category name of first family symbol:
catName = s.Category.Name;
#endregion // 3.1.b
msg = "Family: Name=" + f.Name
+ "; Id=" + f.Id.IntegerValue.ToString()
+ "; Category=" + catName
+ "\r\nContains Types:";
}
msg += "\r\n " + s.Name + "; Id=" + s.Id.IntegerValue.ToString();
}
// Show the symbols for this family and allow user to proceed
// to the next family (OK) or cancel (Cancel)
msg += "\r\nContinue?";
if (!LabUtils.QuestionMsg(msg))
{
break;
}
}
//
// return all families whose name contains the substring "Round Duct":
//
IEnumerable <Family> round_duct_families
= LabUtils.GetFamilies(doc, "Round Duct", true);
int n = round_duct_families.Count();
return(Result.Failed);
}
