Revit API取得变量的内参名称实例代码

与取得元素变量的内参名称类别有个builtinparameter

//取得内参名称
[transaction(transactionmode.manual)]
[regeneration(regenerationoption.manual)]
public class cmdgetbuiltinparam : iexternalcommand
{
    public result execute(externalcommanddata cmddata, ref string msg, elementset elements)
    {
        uidocument uidoc = cmddata.application.activeuidocument;
        document doc = uidoc.document;
        selection sel = uidoc.selection;

        duct duct = doc.getelement(sel.pickobject(objecttype.element, "选择")) as duct;
        foreach (parameter p in duct.parameters)
        {
            if (p.definition.name == "高度")
            {
                builtinparameter biparam = (builtinparameter)p.id.integervalue;
                taskdialog.show("builtin", biparam.tostring());
            }
        }

        return result.succeeded;
    }
}