CODEWITHSUNDEEP
xmldatabasedtd
JavaApprentice
JavaApprentice

Reputation: 101

Can an element have both id and attribute at the same time?

I know that the question is probably trivial, but I really need to know this stuff.

Here's an example of what I precisely mean:

XML Code:

<product id="01" quantity="4 peaces"> Chocolate Cake </product>

Also, what would be in this case the attribute-type declaration in the DTD-file? Perhaps 'CDATA'?

Upvotes: 1

Views: 111

Answers (2)

kjhughes
kjhughes

Reputation: 111511

Your example shows an element with two attributes: id and quantity. XML does not limit the number of attributes an element can have, so, yes, an element can have both an id (attribute) and other attributes at the same time.

DTD declarations:

<!ELEMENT product (#PCDATA)>
<!ATTLIST product 
          id ID #REQUIRED
          quantity CDATA #REQUIRED>

Or, if you must accommodate id values that begin with a digit, which as Daniel Haley rightly points out are not allowed by ID, you could use CDATA for id.

Upvotes: 2

Florian Rusch
Florian Rusch

Reputation: 344

In my opinion yes, it can have both. The id is just an attribute like quantity and every xml-element can have n attributes. So it should work.

But I can not help you with your second question. I have never used DTD-files. Maybe this converter can help you: http://bsp.mits.ch/xsd2dtd/

Upvotes: 1

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