Specifies the error number for an Exception object. Read/write at run time.
Numeric data type
Applies To: Exception Class (Visual FoxPro)
If the exception results from a THROW command that specifies a value for the eUserExpression parameter, the value of ErrorNo is 2071.
Identical to the value returned by the ERROR(В ) function and the first element in the array produced by the AERROR(В ) function.