Enumeration Attribute Type

 

The Enumeration Attribute Type is defined by the W3C XML 1.0 Recommendation.
Reference: *W3C - XML 1.0 - Attribute Types

See also: the Boolean and Shape Attribute Types, which are declared in the DTD as type Enumeration.

Specific Attributes with Type Enumeration

1. align (left | center | right | justify | char):
   This is declared on the elements: col, colgroup, thead, tfoot, tbody, tr, th, td
2. frame (void | above | below | hsides | lhs | rhs | vsides | box | border):
   This is declared on the element: table
3. method (get | post) - default="get":
   This is declared on the element: form
4. rules (none | groups | rows | cols | all):
   This is declared on the element: table
5. scope (row | col | rowgroup | colgroup):
   This is declared on the elements: th, td
6. type (submit | button | reset) - default="submit":
   This is declared on the element: button
7. type (text | password | checkbox | radio | file | hidden | image | button | submit | reset) - default="text":
   This is declared on the element: input
8. valign (top | middle | bottom | baseline):
   This is declared on the elements: col, colgroup, thead, tfoot, tbody, tr, th, td
9. valuetype (data | ref | object) - default="data":
   This is declared on the element: param

---

Common Attributes with Type Enumeration

From the I18N Attribute Collection:

1. dir (ltr | rtl) (#REQUIRED on bdo)

---

Attribute Value for Type Enumeration

If present, the attribute must take one of the listed values

Attribute with the type Enumeration must be given a value equal to one of the possibilities listed in the definition for that attribute.

For example, the attribute scope of type Enumeration (row | col | rowgroup | colgroup), if present, must take one of these four values, e.g. scope="row".

The default value is that given to an attribute which is not present on the element for which it is declared. For example, if a button element does not have the type attribute provided then the value of "submit" is automatically assigned to it. This means that
<button>Button Text</button>
is equivalent to
<button type="submit">Button Text</button>.

See also: the Boolean and Shape Attribute Types, which are declared in the DTD as type Enumeration.