Fired from CIBlock::Update
before the information block is modified. Can be used to decline modifying a
block or to redefine fields.
Parameters
Parameter
Description
arParams
An array of fields of the
information block to be updated.
Note The parameter of this handler is a reference to
the original variable. Hence, altering the value(s) from within the handler
causes changing values of the source variable passed to the handler.
Return Values
To cancel the information block update and terminate the method CIBlock::Update,
throw an exception by calling $APPLICATION->ThrowException()
and return false.