public virtual Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
UIDocument activeDoc = commandData.Application.ActiveUIDocument;
Autodesk.Revit.DB.Document doc = activeDoc.Document;
if (null == doc)
{
return(Result.Failed);
}
try
{
// Start detailed steel modeling transaction
using (FabricationTransaction trans = new FabricationTransaction(doc, false, "Update connection parameters"))
{
// for more details, please consult http://www.autodesk.com/adv-steel-api-walkthroughs-2019-enu
Reference eRef = activeDoc.Selection.PickObject(ObjectType.Element, "Pick a base plate connection");
Element elem = doc.GetElement(eRef.ElementId);
if (null == elem || !(elem is StructuralConnectionHandler))
{
return(Result.Failed);
}
StructuralConnectionHandler rvtConnection = (StructuralConnectionHandler)elem;
FilerObject filerObj = Utilities.Functions.GetFilerObject(doc, eRef);
if (null == filerObj || !(filerObj is UserAutoConstructionObject))
{
return(Result.Failed);
}
UserAutoConstructionObject asConnection = (UserAutoConstructionObject)filerObj;
//
//read connection parameters
IFiler connectionFiler = asConnection.Save();
if (connectionFiler != null)
{
//I choose to modify thickess of the base plate
connectionFiler.WriteItem(Convert.ToDouble(50.0), "BaseThickness"); //units must be milimmeters;
asConnection.Load(connectionFiler); //update connection parameters
asConnection.Update();
//
//if the connection parameters are modified, than we have to set this flag to true,
//meaning that this connection has different parameters than it's connection type.
rvtConnection.OverrideTypeParams = true;
}
trans.Commit();
}
}
catch (Autodesk.Revit.Exceptions.OperationCanceledException)
{
return(Result.Cancelled);
}
return(Result.Succeeded);
}