text: public HSSFShapeGroup(EscherContainerRecord spgrContainer, ObjRecord objRecord): base(spgrContainer, objRecord){EscherContainerRecord spContainer = spgrContainer.ChildContainers[0];_spgrRecord = (EscherSpgrRecord)spContainer.GetChild(0);foreach (EscherRecord ch in spContainer.ChildRecords){switch (ch.RecordId){case EscherSpgrRecord.RECORD_ID:break;case EscherClientAnchorRecord.RECORD_ID:anchor = new HSSFClientAnchor((EscherClientAnchorRecord)ch);break;case EscherChildAnchorRecord.RECORD_ID:anchor = new HSSFChildAnchor((EscherChildAnchorRecord)ch);break;}}}