src/org/tiefaces/components/websheet/utility/ParserUtility.java
public static String getAttributeKeyInMapByCell(final Cell cell) {
		if (cell == null) {
			return null;
		}
		// map's key is sheetName!$columnIndex$rowIndex
		return cell.getSheet().getSheetName() + "!"
				+ CellUtility.getCellIndexNumberKey(cell);

	}
public static String getAttributeKeyInMapByCell(final Cell cell) {
		if (cell == null) {
			return null;
		}
		// map's key is sheetName!$columnIndex$rowIndex
		return cell.getSheet().getSheetName() + "!"
				+ CellUtility.getCellIndexNumberKey(cell);

	}
get attribute key in map by cell.

@param cell
input cell.
@return key.