Change view to 3D

[ywkimPXXW3]

I try to change view to 3D.

RevitDB.View3D view3D = new RevitDB.FilteredElementCollector(m_uiApp.ActiveUIDocument.Document).OfClass(typeof(RevitDB.View3D)).Cast<RevitDB.View3D>()
                .Where(x => !x.IsTemplate).FirstOrDefault();
m_uiApp.ActiveUIDocument.ActiveView = view3D;
//m_uiApp.ActiveUIDocument.RequestViewChange(view3D);
m_uiApp.ActiveUIDocument.RefreshActiveView();

View is changed after ExternalEvent is end.

I want to show progress using RefreshActiveView in 3D.

(Change view to 3D -> Do something(Transaction))

But, the code change view after all code is end.

(Run change view code -> Do something(Transaction) -> Change view to 3D)

How can I change the view directly?

[ywkimPXXW3 · Accepted solution]

Sloved!

When I change view before ExternalEvent.Raise().

RevitDB.View3D view3D = new RevitDB.FilteredElementCollector(m_uiApp.ActiveUIDocument.Document).OfClass(typeof(RevitDB.View3D)).Cast<RevitDB.View3D>()
    .Where(x => !x.IsTemplate).FirstOrDefault();
m_uiApp.ActiveUIDocument.ActiveView = view3D;
m_uiApp.ActiveUIDocument.RefreshActiveView();

if (ExEvent != null)
    ExEvent.Raise();