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paul-lmi
Using actionpoller with a controller method that needs a parameter to be set
Is it possible to use apex:param as a child of actionpoller so that more than one action poller can be used on a single page, each calling a controller method with a specific variable value being set, eg, nest an actionpoller inside an apex:repeat, and pass the controller a variable that's different for each, and have the rerendered section (also in teh repeat) use this set variable to show a different set of items?
Practical use, populating multiple lists of items from multiple web services API calls, all on teh same page, and all via AJAX.
According to the docs:
The <apex:param> component can only be a child of the following components:
• <apex:actionFunction>
• <apex:actionSupport>
• <apex:commandButton>
• <apex:commandLink>
• <apex:outputLink>
• <apex:outputText>
You might have more success using javascript timeouts with apex:actionFunction components.
Does actionfunction allow me to set a param/property in the conrollter prior to executing the controller method it's bound to, similar to how you'd use apex:param in actionsupport.
It does allow that.
That said, there appears to be an issue around apex:param in winter 11 - I've just had to add rerender attributes to my commandbuttons to get the parameter to be passed to the controller.
You can use apex:actionPoller to refresh the time for visual force component apex:outputText.
Tryout the sample code given below :
VF CODE:
<apex:outputText value="The unformatted time right now is: {!propDT}" />
<apex:actionPoller action="{!refresh}" reRender="t1" interval="5"/>
Controller Code:
String datetimeStr = '';
public String propDT { get { return datetimeStr; } set { datetimeStr = value; }}
public void refresh()
{
datetimeStr = String.valueOf(DateTime.Now()).split(' ')[1];
}
Hope this helps.
well aware of that Pradeep. i was specifically looking to use actionpoller with some kind of hack/workaround for passing in an apex:param, not just s simple beginner's example on how to use apex:actionpoller...