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Tag Name: <tr:panelList>
Java Class: org.apache.myfaces.trinidad.component.core.layout.CorePanelList
Component Type: org.apache.myfaces.trinidad.CorePanelList

The panelList component outputs each visible child in a list with a bullet next to it. The list can be split into columns. This is done by setting the "rows" attribute. This is the multiple of children at which to add another column. For example, if the "rows" attribute was set to 6 then if there were 1-6 visible children there would be one column, 7 to 12 visible children there would be 2 columns, and 13+ visible children would be shown in 3 columns. The number of columns is determined by the value set for "maxColumns" attribute. So if there were 100 visible children with "rows" set to 30 and "maxColumns" was set to 3 children, there will be 3 columns (and 34 rows). If "rows" attribute is not specified, all visible contents will be in one column. The "maxColumns" that can be set is dependent on the type of Agent. If the value set for "maxColumns" is greater than the default for the agent, then it is defaulted. The default maxColumns value is 2 for the PDA. Children are not displayed/rendered if value of "maxColumns" or "rows" is less than one. The split is based solely on the number of visible children and not on their size.

Code Example(s)

<tr:panelList rows="5">
  <tr:goLink text="link 1" destination=""/>
  <tr:goLink text="link 2" destination=""/>
  <tr:goLink text="link 3" destination=""/>
  <tr:goLink text="link 4" destination=""/>
  <tr:goLink text="link 5" destination=""/>
  <tr:goLink text="link 6" destination=""/>
  <tr:goLink text="link 7" destination=""/>
  <tr:goLink text="link 8" destination=""/>

Supported Client Events for Client Behaviors

  • click (default)
  • dblclick
  • keydown
  • keypress
  • keyup
  • mousedown
  • mousemove
  • mouseout
  • mouseover
  • mouseup


Type Phases Description
org.apache.myfaces.trinidad.event.AttributeChangeEvent Invoke Application,
Apply Request Values
Event delivered to describe an attribute change. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change event might include the width of a column that supported client-side resizing.


Name Type Supports EL? Description
attributeChangeListener javax.el.MethodExpression Only EL a method reference to an attribute change listener. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change events might include the width of a column that supported client-side resizing.
binding org.apache.myfaces.trinidad.component.core.layout.CorePanelList Only EL an EL reference that will store the component instance on a bean. This can be used to give programmatic access to a component from a backing bean, or to move creation of the component to a backing bean.
id String No the identifier for the component. Every component may be named by a component identifier that must conform to the following rules:
  • They must start with a letter (as defined by the Character.isLetter() method) or underscore ( _ ).
  • Subsequent characters must be letters (as defined by the Character.isLetter() method), digits as defined by the Character.isDigit() method, dashes ( - ), or underscores ( _ ). To minimize the size of responses generated by JavaServer Faces, it is recommended that component identifiers be as short as possible. If a component has been given an identifier, it must be unique in the namespace of the closest ancestor to that component that is a NamingContainer (if any).
inlineStyle String Yes the CSS styles to use for this component.
listStyle String Yes Styles the list. For example, you can style the list to be squares like this: listStyle='list-style-type:square'
maxColumns int Yes Default Value: 3

Sets the maximum number of columns to show. This attribute defaults to 3 and defaults to 2 for PDA's
onclick String Yes an onclick Javascript handler.
ondblclick String Yes an ondblclick Javascript handler.
onkeydown String Yes an onkeydown Javascript handler.
onkeypress String Yes an onkeypress Javascript handler.
onkeyup String Yes an onkeyup Javascript handler.
onmousedown String Yes an onmousedown Javascript handler.
onmousemove String Yes an onmousemove Javascript handler.
onmouseout String Yes an onmouseout Javascript handler.
onmouseover String Yes an onmouseover Javascript handler.
onmouseup String Yes an onmouseup Javascript handler.
partialTriggers String[] Yes the IDs of the components that should trigger a partial update.

This component will listen on the trigger components. If one of the trigger components receives an event that will cause it to update in some way, this component will request to be updated too.

Separate multiple triggers with a space. e.g., partialTriggers="cmp1 cmp2"

Identifiers must account for NamingContainers. You can use a single colon to start the search from the root, or use multiple colons to move up through the NamingContainer. For example, "::" will pop out of this component's naming container (it pops out of itself if it is a naming container), ":::" will pop out of two naming containers, etc. The search for the partialTrigger begins from there. e.g., partialTriggers=":::commandButton1" the search begins for the component with id = commandButton1 after popping out of two naming containers relative to this component. To go into naming containers, you separate the naming containers with ':', e.g.,partialTriggers= "nc1:nc2:nc3:componentId".

rendered boolean Yes Default Value: true

whether the component is rendered. When set to false, no output will be delivered for this component (the component will not in any way be rendered, and cannot be made visible on the client). If you want to change a component's rendered attribute from false to true using PPR, set the partialTrigger attribute of its parent component so the parent refreshes and in turn will render this component.
rows int Yes Default Value: 2147483647

Sets the number of rows after which to start a new column. This attribute defaults to Integer.MAX_VALUE. The number of rows actually rendered depends also on the "maxColumns" attribute. If the children will not fit in the given number of rows and columns, the number of rows will increase to accomodate the children.
shortDesc String Yes The short description of the component. This text is commonly used by user agents to display tooltip help text.
styleClass String Yes a CSS style class to use for this component.