/// <summary>
 /// Returns a String in the format "1|2|3" containing the features ids to exlude from a shapefile.
 /// </summary>
 /// <param name="idRegion"></param>
 /// <returns></returns>
 public string GetFeatureIDsToExclude(int idRegion)
 {
     return(RegionManager.GetFeatureIDsToExclude(idRegion));
 }