Gets the Dimension with the ID dimensionId from this list.
Dimension with the ID dimensionId or null if no dimension is found.
Assembly: Endeca.Navigation (Module: Endeca.Navigation) Version: 0.0.0.0
Note that when dealing with multi-select dimensions, it is possible to have a list with multiple Dimension objects for the same dimension. In this case, several share the same ID and this method does not define which one is returned.