The code itself does not delete elements. The families are updated and that does change the element.
private bool ConvertParameters(Document doc)
{
// Load the Elements which will be updated.
IEnumerable<Element> elements = this.GetAllWoononElements(doc);
foreach (Element e in elements)
{
// what ever, exception iss thrown in the foreach.
}
}
// GetElementsWithGroepParameter returns all the Elements that have the shared parameter
// KO_Groep. This is a legecy parameter which we know Elements uploaded to WOONON require.
private IEnumerable<Element> GetAllWoononElements(Document doc)
{
var result = new FilteredElementCollector(doc)
.WhereElementIsNotElementType()
.Where(q => this.ElementIsWoononElement(q))
;
return result;
}
// We use the element name parameter. Don't use the Version parameter, because the
// project information uses the project parameter as well.
private bool ElementIsWoononElement(Element e)
{
Parameter name = new RevitUtils.ParameterUtil().GetParameterFromFamilyInstanceOrSymbol(WoononParameters.WO_FAMILY_ELEMENT_NAME, e);
if (name != null && name.HasValue)
return true;
Parameter g = new RevitUtils.ParameterUtil().GetParameterFromFamilyInstanceOrSymbol("KO_Groep", e);
Parameter o = new RevitUtils.ParameterUtil().GetParameterFromFamilyInstanceOrSymbol("KO_Optienummer", e);
if ((g == null || o == null) || (!g.HasValue || !o.HasValue))
return false;
string gs = HParameters.GetParameterValue(g).ToString();
string os = HParameters.GetParameterValue(o).ToString();
return
!string.IsNullOrWhiteSpace(gs)
&& !string.IsNullOrWhiteSpace(os)
&& !gs.All(c => c == '0')
&& !os.All(c => c == '0')
;
}
