Bug 204229 [Automation][Regression]Exception is thrown when preview reportdesign in webviewer
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/document/util/ExprDataReader1.java
* @throws DataException
	 */
	private void skipTo( int absoluteRowIndex ) throws IOException, DataException
	{
		if ( currReadIndex == absoluteRowIndex )
			return;
		
		if ( this.dataSetData!= null )
		{
			this.dataSetData.skipTo( absoluteRowIndex );
		}		
		
		if ( version == VersionManager.VERSION_2_0 )
		{
			int exprCount;
			int gapRows = absoluteRowIndex - currReadIndex;
			for ( int j = 0; j < gapRows; j++ )
			{
				exprCount = IOUtil.readInt( rowExprsDis );
				for ( int i = 0; i < exprCount; i++ )
				{
				
					IOUtil.readObject( rowExprsDis );
				}
			}
		}
		else if ( version <= VersionManager.VERSION_2_2_1_1 )
		{
			rowLenRAIs.seek( absoluteRowIndex * INT_LENGTH );
			int rowOffsetAbsolute = IOUtil.readInt( rowLenRAIs );