Very fast implementation of findAllChildElems, for fast querying
Very fast implementation of findAllChildElems, for fast querying
Returns the header cell at the given zero-based slice index.
Returns the header cell at the given zero-based slice index. This may fail with an exception if the document is not schema-valid.
Returns the total span of the header.
Returns the total span of the header. This may fail with an exception if the document is not schema-valid.
Note that all headers for the same axis must have the same total span.
Header in a table model