Autodesk Revit Architecture

[#1]

Hi,

i was trying to export sheets from multiple .RVT projects.

When i tried set the minimized document's active view as as view sheet and export that , I got an exception "SEHException crossed a native/managed boundary". My code exports sheets only whose active document is not null.

But i need to export currently opened all .RVT projects.

I attempted to change the active in this way and got problem. Plz suggest any ideas.

 void SetActiveView(ViewSheet vs)
        {
            try
            {
                ApplicationData.Doc.ActiveView = vs;
            }
            catch (Exception)
            {

            }
        }