Adding DrawingCurve to SelectionSet

By Xiaodong Liang

When you add DrawingCurve to SelectionSet like below, you will receive a failure.

private void AddDrawingCurvesToSelectSet()    {        // assume the Inventor application is got        // and a drawing document with some         // drawing views is opened.         DrawingDocument oDrawingDoc =            m_inventorApp.ActiveDocument as DrawingDocument;            Sheet oActiveSheet =            oDrawingDoc.ActiveSheet;              DrawingView oView =             oActiveSheet.DrawingViews[1];              DrawingCurvesEnumerator oCurves =             oView.get_DrawingCurves(null);              SelectSet oSel =             oDrawingDoc.SelectSet;              oSel.Clear();         //it failed         //oSel.Select(oCurves[1]);       }

It is the designed behavior that DrawingCurves are not supported to be added to the SelectionSet directly Drawing curves are not selectable entities – only curve segments are. There shouldn’t really be a need to select a drawing curve over a segment. Selection of a segment provides additional information.

private void AddDrawingCurvesToSelectSet()    {        // assume the Inventor application is got        // and a drawing document with some         // drawing views is opened.              DrawingDocument oDrawingDoc =             m_inventorApp.ActiveDocument as DrawingDocument;        Sheet oActiveSheet = oDrawingDoc.ActiveSheet;             DrawingView oView =             oActiveSheet.DrawingViews[1];             DrawingCurvesEnumerator oCurves =             oView.get_DrawingCurves(null);             SelectSet oSel =             oDrawingDoc.SelectSet;        oSel.Clear();             for (int i = 1; i