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  1. Introduction
  2. Getting Started
  3. Trinidad Concepts
  4. Code View Support
  5. Design View Support
  6. Tag Object Toolbars
  7. Trinidad Server Behaviors
  8. Trinidad Property Inspectors
  9. Trinidad Tag Reference
Trinidad Core Tag Library
  tr:attribute
  tr:breadCrumbs
  tr:chart
  tr:chooseColor
  tr:chooseDate
  tr:column
  tr:commandButton
  tr:commandLink
  tr:commandNavigationItem
  tr:componentDef
  tr:componentRef
  tr:convertColor
  tr:convertDateTime
  tr:convertNumber
  tr:document
  tr:facetRef
  tr:forEach
  tr:form
  tr:goButton
  tr:goLink
  tr:group
  tr:icon
  tr:image
  tr:importScript
  tr:inputColor
  tr:inputDate
  tr:inputFile
  tr:inputHidden
  tr:inputListOfValues
  tr:inputNumberSpinbox
  tr:inputText
  tr:iterator
  tr:legend
  tr:media
  tr:message
  tr:messages
  tr:navigationPane
  tr:navigationTree
  tr:outputDocument
  tr:outputFormatted
  tr:outputLabel
  tr:outputText
  tr:page
  tr:panelAccordion
  tr:panelBorderLayout
  tr:panelBox
  tr:panelButtonBar
  tr:panelChoice
  tr:panelFormLayout
  tr:panelGroupLayout
  tr:panelHeader
  tr:panelHorizontalLayout
  tr:panelLabelAndMessage
  tr:panelList
  tr:panelPage
  tr:panelPageHeader
  tr:panelPartialRoot
  tr:panelRadio
  tr:panelSideBar
  tr:panelTabbed
  tr:panelTip
Selected tr:poll
  tr:processChoiceBar
  tr:progressIndicator
  tr:resetActionListener
  tr:resetButton
  tr:returnActionListener
  tr:selectBooleanCheckbox
  tr:selectBooleanRadio
  tr:selectItem
  tr:selectManyCheckbox
  tr:selectManyListbox
  tr:selectManyShuttle
  tr:selectOneChoice
  tr:selectOneListbox
  tr:selectOneRadio
  tr:selectOrderShuttle
  tr:selectRangeChoiceBar
  tr:separator
  tr:setActionListener
  tr:showDetail
  tr:showDetailHeader
  tr:showDetailItem
  tr:singleStepButtonBar
  tr:spacer
  tr:subform
  tr:switcher
  tr:table
  tr:train
  tr:tree
  tr:treeTable
  tr:validateByteLength
  tr:validateDateRestriction
  tr:validateDateTimeRange
  tr:validateDoubleRange
  tr:validateLength
  tr:validateLongRange
  tr:validateRegExp
  tr:validator
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9. Trinidad Core Tag Reference

Documentation > Trinidad > Trinidad Tag Reference > Trinidad Core Tag Library > tr:poll

< tr:panelTip tr:processChoiceBar >

tr:poll
<p>The <tr:poll> tag checks the server so that dependent components get updated.</p>

Example

<tr:poll> </tr:poll>

HTML Output

(No output.)

Tag Attributes

attributeChangeListener Text
 
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 Expression
 
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 Text
 
the identifier for the component
immediate Text
 
whether data validation should be skipped when poll events are generated by this component. When immediate is false (the default), events will be delivered during the Invoke Application phase, which will trigger validation. When set to true, events will be executed during the Apply Request Values phase.
interval Text
 
the time between poll events, in milliseconds. The default is 5000. If in screen-reader mode, make sure the interval is long enough for the screen reader to read through the re-render before a new poll occurs.
pollListener Text
 
a method reference to a poll listener
rendered Text
 
whether the component is rendered. When set to false, no output will be delivered for this component.
< tr:panelTip tr:processChoiceBar >