private void DeleteViewsNotOnSheets(Document doc)
{
var sheets = new FilteredElementCollector(doc).OfCategory(BuiltInCategory.OST_Sheets).ToElementIds();
List <ElementId> viewsONsheets = new List <ElementId>();
//get views on sheets
if (sheets.Count != 0)
{
foreach (ElementId id in sheets)
{
ViewSheet sheet = doc.GetElement(id) as ViewSheet;
viewsONsheets.AddRange(sheet.GetAllPlacedViews());
}
}
List <ElementId> usedtemplates = new List <ElementId>();
//get used templates
foreach (ElementId id in viewsONsheets)
{
Autodesk.Revit.DB.View view = doc.GetElement(id) as Autodesk.Revit.DB.View;
if (view.ViewTemplateId != ElementId.InvalidElementId)
{
if (!usedtemplates.Contains(id))
{
usedtemplates.Add(view.ViewTemplateId);
}
}
}
ICollection <ElementId> viewsNOTsheets = null;
//if no views on sheets collect differently
if (viewsONsheets.Count != 0)
{
viewsNOTsheets = new FilteredElementCollector(doc).OfCategory(BuiltInCategory.OST_Views).Excluding(viewsONsheets).ToElementIds();
}
else
{
viewsNOTsheets = new FilteredElementCollector(doc).OfCategory(BuiltInCategory.OST_Views).ToElementIds();
}
//if no views not on sheets return
if (viewsNOTsheets.Count == 0)
{
return;
}
//delete views not on sheets and unused templates skip views with dependancy
foreach (ElementId id in viewsNOTsheets)
{
Autodesk.Revit.DB.View view = doc.GetElement(id) as Autodesk.Revit.DB.View;
if (!view.IsTemplate && view.GetDependentViewIds().Count == 0)
{
try
{
doc.Delete(id);
}
catch { }
}
else if (view.IsTemplate && !usedtemplates.Contains(id))
{
try
{
doc.Delete(id);
}
catch { }
}
}
//get remaining views
ICollection <ElementId> remainingviews;
if (viewsONsheets.Count != 0)
{
remainingviews = new FilteredElementCollector(doc).OfCategory(BuiltInCategory.OST_Views).Excluding(viewsONsheets).ToElementIds();
}
else
{
remainingviews = new FilteredElementCollector(doc).OfCategory(BuiltInCategory.OST_Views).ToElementIds();
}
//delete views without dependent views
foreach (ElementId id in remainingviews)
{
Autodesk.Revit.DB.View view = doc.GetElement(id) as Autodesk.Revit.DB.View;
if (!view.IsTemplate && view.GetDependentViewIds().Count == 0)
{
try
{
doc.Delete(id);
}
catch { }
}
}
}
