Defining elements

Example of an XDR file:

Attribute detail properties

The Detail page of an attribute property sheet displays the following properties:

Property

Description

Default

Default value. Enter a default value only if there is no fixed value

Fixed

Fixed value. Enter a fixed value only if there is no default value

Use

Indicator of how the attribute is used. If you select Optional, the

 

attribute is optional and may have any value. If you select

 

Prohibited, the attribute cannot be used. Use this value to

 

prohibit the use of an existing attribute in the restriction of

 

another complex type. If you select Required, the attribute must

 

appear at least once and may have any value matching its data

 

type

Form

Form of the attribute. If you select Qualified, Form must be

 

qualified by combining the target namespace of the schema with

 

the no-colon-name (See Glossary) of the attribute. If you select

 

Unqualified, Form is not required to be qualified with the

 

namespace prefix and is matched against the no-colon-name of

 

the attribute

ID

ID of the attribute. Its value must be of type ID and unique within

 

the model containing the attribute

 

 

Attribute values page

The Values page of an attribute property sheet is only available in a model targeted with DTD or XDR. You can set a list of predefined values for an attribute.

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Sybase XML manual Attribute detail properties, Attribute values