public bool AddDatabaseLayer( string connection, string layerName, GeometryType multiGeometryType = GeometryType.None, ZValueType zValue = ZValueType.None) { var layer = new VectorLayer(); if (layer.Open(connection, layerName)) { if (multiGeometryType != GeometryType.None) { layer.SetActiveGeometryType(multiGeometryType, zValue); } return(AddDatasource(layer)); } return(false); }