/// <summary>
/// Method to select multiple areas...
/// Selected areas show up one by one...
/// No highlighting of selected objects
/// </summary>
/// <param name="collectionVM"></param>
/// <param name="uidoc"></param>
/// <param name="counter"></param>
internal static void GetAreasByIndividualSelection(AreaCollectionVM collectionVM, UIDocument uidoc, ref int counter)
{
while (!collectionVM.StopSelection)
{
Reference pickedRef;
try
{
// try catch to capture escape options
pickedRef = uidoc.Selection.PickObject(ObjectType.Element, new AreaSelectionFilter());
}
catch { break; }
if (collectionVM.StopSelection)
{
break;
}
var refeId = pickedRef.ElementId;
Element areaElement = uidoc.Document.GetElement(refeId);
Area area = areaElement as Area;
collectionVM.AddArea(area, counter);
counter++;
}
}
/// <summary>
/// method to select multiple areas
/// selected areas shows up to gether
/// selected objects are highlighted
/// </summary>
/// <param name="collectionVM"></param>
/// <param name="uidoc"></param>
/// <param name="counter"></param>
internal static void GetAreasByMultipleSelection(AreaCollectionVM collectionVM, UIDocument uidoc, ref int counter)
{
IList <Reference> areasReferences = null;
ICollection <ElementId> selectedIds = null;
try
{
areasReferences = uidoc.Selection.PickObjects(ObjectType.Element, new AreaSelectionFilter());
}
catch
{
if (collectionVM.StopSelection)
{
return;
}
/*operation cancelled*/
TaskDialog.Show("Error", "Please select 'Finish' in the 'Options Bar' of the interface to complete the selection");
// exit command and close window
return;
}
if (null == areasReferences && null == selectedIds)
{
return;
}
// if no references were found, but selected items were retrieved
if (null == selectedIds && null != areasReferences)
{
selectedIds = areasReferences.Select(x => x.ElementId).ToList();
}
// use selected ids
var areasElements = selectedIds.Select(x => uidoc.Document.GetElement(x));
foreach (Element areaElement in areasElements)
{
Area area = areaElement as Area;
collectionVM.AddArea(area, counter);
counter++;
}
}
