public override void Dispose()
 {
     if (_dsb8 != null)
     {
         Marshal.FinalReleaseComObject(_dsb8);
         _dsb8 = null;
     }
     base.Dispose();
 }
 public override void Dispose()
 {
     if (_dsb8 != null)
     {
         Marshal.FinalReleaseComObject(_dsb8);
         _dsb8 = null;
     }
     base.Dispose();
 }