Form.select.optgroup ViewHelper <f:form.select.optgroup>   
                
            
    
    
        
            
        
    Adds custom 
        <optgroup> tags inside an <f:form.select>,
supports further child <f:form.select.option> tags.
Go to the source code of this ViewHelper: Form\Select\OptgroupViewHelper.php (GitHub).
Arguments
Allows arbitrary arguments
This ViewHelper allows you to pass arbitrary arguments not defined below directly
                        to the HTML tag created. This includes custom
                        data- arguments.
The following arguments are available for the form.select.optgroup ViewHelper:
accesskey
- 
            
- Type
 - string
 
Keyboard shortcut to access this element 
additionalAttributes
- 
            
- Type
 - array
 
Additional tag attributes. They will be added directly to the resulting HTML tag. 
class
- 
            
- Type
 - string
 
CSS class(es) for this element 
data
- 
            
- Type
 - array
 
Additional data-* attributes. They will each be added with a "data-" prefix. 
dir
- 
            
- Type
 - string
 
Text direction for this HTML element. Allowed strings: "ltr" (left to right), "rtl" (right to left) 
disabled
- 
            
- Type
 - boolean
 - Default
 - false
 
If true, option group is rendered as disabled 
id
- 
            
- Type
 - string
 
Unique (in this file) identifier for this HTML element. 
label
- 
            
- Type
 - string
 
Human-readable label property for the generated optgroup tag 
lang
- 
            
- Type
 - string
 
Language for this element. Use short names specified in RFC 1766 
onclick
- 
            
- Type
 - string
 
JavaScript evaluated for the onclick event 
style
- 
            
- Type
 - string
 
Individual CSS styles for this element 
tabindex
- 
            
- Type
 - integer
 
Specifies the tab order of this element 
title
- 
            
- Type
 - string
 
Tooltip text of element