Trouble getting shared parameter values

[Anonymous]

Hello! I am having a lot of trouble getting shared parameter values from my application I have been working on. This is the code that I have. It is retrieving the Built-In parameters from the System family but not the shared parameters that are inside of it. 

            ElementCategoryFilter filter = new ElementCategoryFilter(BuiltInCategory.OST_Wire);
            FilteredElementCollector collector = new FilteredElementCollector(doc);
            IList<Element> wire = collector.WherePasses(filter).ToElements();
            String prompt = "The wire in the current document are:\n";
            List<ElementId> lstFamilySymbolIDs = new List<ElementId>();

            foreach (Element e in wire)
            {
                prompt += "\n";
                prompt += e.Name + "\n";
              
                prompt += e.Id + "\n";
                lstFamilySymbolIDs.Add(e.Id);

                Parameter p = e.LookupParameter("Type");
                prompt += GetParameterValue(p) + "\n";

                Parameter p7 = e.LookupParameter("Fab - Area");
                prompt += GetParameterValue(p7) + "test" + "\n";

                prompt += "\n";

            }
            TaskDialog.Show("revit", prompt);

[naveen.kumar.t · Accepted solution]

Hi @Anonymous ,

try using the below code

ElementCategoryFilter filter = new ElementCategoryFilter(BuiltInCategory.OST_Wire);
            FilteredElementCollector collector = new FilteredElementCollector(doc);
            IList<Element> wire = collector.WherePasses(filter).ToElements();

 IList<Parameter> sharedParameters = new List<Parameter>();

//ACCESS INSTANCE SHARED PARAMETER
 foreach(Element e in wire)
                {
                    foreach(Parameter p in e.Parameters)
                    {
                        if(p.IsShared)
                        {
                            sharedParameters.Add(p);                          
                        }
                    }
                }

//ACCESS TYPE SHARED PARAMETER
 ElementType ET = doc.GetElement(e.GetTypeId()) as ElementType;
                foreach(Parameter P in ET.Parameters)
                {
                    if(P.IsShared)
                    {
                         sharedParameters.Add(p); 
                    }
                }

To get the values you can use

if(p.IsShared)
                        {
                            switch (p.StorageType)
                            {
                                case StorageType.None:
                                    break;

                                case StorageType.Double:
                                    double parameterValue = p.AsDouble();
                                    break;

                                case StorageType.Integer:
                                      int parameterValue = p.AsInteger();
                                    break;

                                case StorageType.ElementId:
                                      ElementId  parameterValue = p.AsElementId();
                                    break;
                                case StorageType.String:
                                     string   parameterValue = p.AsValueString();
                                    break;
                            }

                        }

I hope this helps.

[Anonymous]

Exactly what I was looking for. Thank you so much!