Number 

This attribute is used to express a complete seat
number, the number being the possible combination of a seat row and a seat
column (@Number = @ Row + @Column). The number may also be expressed separately
or at the same time in @Row and @Number. This allows to group seats of the same
type together in seat collections.

Attribute Information

Used By

Attribute Group SeatGroup

Source 

<xs:attribute name="Number" type="xs:string" use="optional">
  <xs:annotation>
    <xs:documentation xml:lang="EN">This attribute is used to express a complete seat number, the number being the possible combination of a seat row and a seat column (@Number = @ Row + @Column). The number may also be expressed separately or at the same time in @Row and @Number. This allows to group seats of the same type together in seat collections.</xs:documentation>
  </xs:annotation>
</xs:attribute>

Sample