XSD SchemaLesson 90Free preview

XSD Elements-only

This lesson is part of XML · All levels

Summary

Elements containing only children are declared with <xs:complexType> that contain content models of xs:sequence, xs:choice, or xs:all. The attributes minOccurs and maxOccurs in each child govern whether they are mandatory, optional, or repeatable. Using maxOccurs="unbounded" and a combination of minOccurs, a flexible list structure can be modeled.

Key points

Obliging the child to appear in the order of declaration
MinOccurs="0" makes the child optional
MaxOccurs="unbounded" allows children to repeat indefinitely
A child of the complex type can use a named type to save declaration.
Attributes are placed after the content model within the same complexType

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