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If substitution is specified, then substitution group members cannot be used in place of the given element declaration to validate element instances. Then, collapse contiguous sequences of space characters into single space character, and remove leading and trailing space characters.ĭisallowed Substitutions(Applies to element declarations). Ĭollapse Whitespace PolicyReplace tab, line feed, and carriage return characters with space character (Unicode character 32). Ĭhoice Model Group Only one from the list of child elements and model groups can be provided in instances. For references to abstract type definitions, only derived types can be used.Īll Model GroupChild elements can be provided in any order in instances. If there is a reference to an abstract element, only element declarations that can substitute the abstract element can be used to validate the instance. An abstract element or complex type cannot used to validate an element instance. If a local element/attribute has documentation, it will be displayed in a window that pops up when the question mark inside the attribute or next to the element is clicked, e.g.Ībstract(Applies to complex type definitions and element declarations).
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For local simple type definitions, the constraints are displayed in angle brackets, e.g.If the element/attribute's type is in the schema, a link is provided to it.Otherwise, the type of the element/attribute is displayed.If an element/attribute has a fixed value, the fixed value is shown in green, e.g.For type derivations, the elements and attributes that have been added to or changed from the base type's content are shown in bold.Model group information are shown in gray, e.g.The minimum and maximum occurrence of elements and attributes are provided in square brackets, e.g.The XML Instance Representation table above shows the schema component's content as an XML instance.