Gets or sets a value that defines a number of child elements whose placement is described by the DistributionInfo. The default value is 0, which means no propagation.
Propagate defines a number of elements with indexes started at ElementIndex + 1 that will get a distribution info which is defined in this object. A negative value indicates that all elements that follows the element at ElementIndex index will be provided with this distribution info. A propagation is stopped at a first element that has a corresponding DistributionInfo object defined.