OptionGroupModel (Tapestry API - 5.7.2)乐学网一站式学习平台

All Known Implementing Classes:

OptionGroupModelImpl
```
public interface OptionGroupModel
```
Defines a group of related options. Options may be enabled or disabled as a group. Corresponds to the [X]HTML element <optgroup>.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Map<String,String>`	`getAttributes()`	Additional attributes to render with the <optgroup>.
`String`	`getLabel()`	Localized, user-presentable label for the group.
`List<OptionModel>`	`getOptions()`	The list of options within the group.
`boolean`	`isDisabled()`	If true, the group (and all options within it) will be disabled.

- Method Detail
  - getLabel
```
String getLabel()
```
    Localized, user-presentable label for the group.
  - isDisabled
```
boolean isDisabled()
```
    If true, the group (and all options within it) will be disabled. Note that some browsers do not honor the disabled attribute property.
    
    Returns:
    
    true if a disabled attribute should be rendered.
  - getAttributes
```
Map<String,String> getAttributes()
```
    Additional attributes to render with the <optgroup>. This is often used to render the CSS class attribute. May return null.
  - getOptions
```
List<OptionModel> getOptions()
```
    The list of options within the group.