/// <summary>
/// Event handler method for SelectionChanged event.
/// This method will check that the selection reported by event is the same with the actual Revit selection
/// and print the current selection in the log file.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">Event arguments that contains the event data.</param>
private void SelectionChangedHandler(Object sender, SelectionChangedEventArgs args)
{
// The document associated with the event.
Document doc = args.GetDocument();
//Check if Revit selection matches the selection reported by the event
UIDocument uidoc = new UIDocument(doc);
IList <Reference> currentSelection = uidoc.Selection.GetReferences();
IList <Reference> reportedSelection = args.GetReferences();
if (!currentSelection.All(i => null != reportedSelection.FirstOrDefault(r => r.EqualTo(i))))
{
LogManager.WriteLog("Error: Current selection is different from the selection reported by the selectionchanged event");
}
var currentSelectedElementIds = uidoc.Selection.GetElementIds();
var reportedSelectedElementIds = args.GetSelectedElements();
if (!currentSelectedElementIds.All(i => null != reportedSelectedElementIds.FirstOrDefault(r => r == i)))
{
LogManager.WriteLog("Error: Current selected ElementIds is different from the one reported by the selectionchanged event");
}
// write to log file.
LogManager.WriteLog(args.GetInfo());
if (InfoWindow != null)
{
InfoWindow.RevitUIApp_SelectionChanged(sender, args);
}
}
/// <summary>
/// Get SelectionChangedEvent information
/// </summary>
/// <param name="args">Event arguments that contains the event data.</param>
/// <param name="doc">document in which the event occurs.</param>
public static string GetInfo(this SelectionChangedEventArgs args)
{
StringBuilder sb = new StringBuilder();
sb.AppendLine();
Document doc = args.GetDocument();
sb.AppendLine("[Event] " + GetEventName(args.GetType()) + ": " + TitleNoExt(doc.Title));
IList <Reference> refs = args.GetReferences();
sb.AppendLine("Selection Count:" + refs.Count);
foreach (var aRef in refs)
{
//foreach (PropertyInfo pi in aRef.GetType().GetProperties())
//{
// Trace.WriteLine(pi.Name + ":" + pi.GetValue(aRef, null)?.ToString());
//}
switch (aRef.ElementReferenceType)
{
case ElementReferenceType.REFERENCE_TYPE_NONE:
{
sb.AppendFormat("The reference is to an element. ElementId:{0}.", aRef.ElementId);
if (aRef.LinkedElementId != ElementId.InvalidElementId)
{
sb.AppendFormat("LinkedElementId:{0}", aRef.LinkedElementId);
}
break;
}
case ElementReferenceType.REFERENCE_TYPE_LINEAR:
{
sb.AppendFormat("The reference is to a curve or edge. ElementId:{0}.", aRef.ElementId);
break;
}
case ElementReferenceType.REFERENCE_TYPE_SURFACE:
{
sb.AppendFormat("The reference is to a face or face region. ElementId:{0}.", aRef.ElementId);
break;
}
case ElementReferenceType.REFERENCE_TYPE_FOREIGN:
{
sb.AppendFormat("The reference is to geometry or elements in linked Revit file. LinkedElementId:{0}.", aRef.LinkedElementId);
break;
}
case ElementReferenceType.REFERENCE_TYPE_INSTANCE:
{
sb.AppendFormat("The reference is an instance of a symbol. ElementId:{0}.", aRef.ElementId);
break;
}
case ElementReferenceType.REFERENCE_TYPE_CUT_EDGE:
{
sb.AppendFormat("The reference is to a face that was cut. ElementId:{0}.", aRef.ElementId);
break;
}
case ElementReferenceType.REFERENCE_TYPE_MESH:
{
sb.AppendFormat("The reference is to a mesh. ElementId:{0}.", aRef.ElementId);
break;
}
case ElementReferenceType.REFERENCE_TYPE_SUBELEMENT:
{
sb.AppendFormat("The reference is to a subelement. ElementId:{0}.", aRef.ElementId);
break;
}
default:
{
sb.Append("Unknown reference type.");
break;
}
}
Element elem = doc.GetElement(aRef.ElementId);
if (elem != null)
{
sb.AppendFormat(" Name:{0}.", elem.Name);
}
sb.AppendLine();
}
return(sb.ToString());
}