xs:anySimpleType

The data type xs:anySimpleType is the base type for all primitive types that are defined in the XML Schema Definition language.

xs:anySimpleType is used to define a required type (for example, in a function signature) to indicate that any simple type is acceptable. The base type of xs:anySimpleType is xs:anyType.

Casting is not supported to or from xs:anySimpleType.

Lexical form

xs:anySimpleType can have any lexical form.