topic selecting element type parameter with none element type parameters in Revit API Forum

selecting element type parameter with none element type parameters

wahedfazeli — Tue, 26 Jun 2018 18:41:48 GMT

Is there any way to select element type parameters with none element type parameters i want to get keynote parameter with volume and area parameter of a element . I want to place if condition when my keynote parameter was specific number i put volume or area parameter of that element in specific database. Is there any way i can do this work?

Re: selecting element type parameter with none element type parameters

jeremytammik — Wed, 27 Jun 2018 11:14:22 GMT

If you are searching for elements with a parameter taking an ElementId data type, you might be able to search for all that have the value ElementId.InvalidElementId assigned to them:

http://www.revitapidocs.com/2018/08ae8886-6ab3-3ef5-d2e0-0da2ffa7bd2c.htm

Best regards,

Jeremy

Re: selecting element type parameter with none element type parameters

wahedfazeli — Thu, 28 Jun 2018 07:38:08 GMT

tnx dear jeremy

my problem dont solve

when i write this code

foreach(Element elem in new FilteredElementCollector( doc ).WhereElementIsNotElementType())

this code show parameters of area and volume but no keynote or uniformat parameter.

and when i write this code .

foreach(Element elem in new FilteredElementCollector( doc ).WhereElementIsElementType())

this code show parameters of keynote or uniformat but no area or volume parameter.

is there any way to select all of this parameters together?

Re: selecting element type parameter with none element type parameters

FAIR59 — Sun, 01 Jul 2018 19:47:09 GMT

Area is a instance parameter of an element, but KeyNote is a type parameter . So you need to find the type of the element to get the keynote.

To find the type of an element:

Element type_of_element = doc.GetElement( elem.GetTypeId());

the basic loop is something like this:

foreach(Element elem in new FilteredElementCollector( doc )
        .WhereElementIsNotElementType()
        .WhereElementIsViewIndependent()
      )
{
	Parameter p_area = elem.get_Parameter(BuiltInParameter.HOST_AREA_COMPUTED);
//				string area_value = p_area==null? string.Empty : p_area.AsDouble().ToString();
	string area_value = p_area==null? string.Empty : p_area.AsValueString();
	string keynote_value = string.Empty;
	Element type_of_element = doc.GetElement( elem.GetTypeId());
	if (type_of_element!=null)
	{
		Parameter p_keynote = type_of_element.get_Parameter(BuiltInParameter.KEYNOTE_PARAM);
		keynote_value = p_keynote==null? string.Empty : p_keynote.AsString();
		TaskDialog.Show("debug", string.Format("{0}  area: {1}, keynote: {2}",elem.Name,area_value,keynote_value));
		break;
	}
}

Re: selecting element type parameter with none element type parameters

wahedfazeli — Mon, 02 Jul 2018 09:06:34 GMT

thanks a lot. my problem is solved