Prime Community Forum

Posted: **01 Jun 2012, 13:31**

I have a tree with selectionMode checkbox and i want to define that at least one selection is need.
The attribute required is not available in Primefaces 3.2.
I know i can make the check in the bean, but i want to do the check before calling the bean.

Code: Select all

    <p:tree value="#{treeBean.root}" var="node" id="checkboxTree"  
            selectionMode="checkbox"  
            selection="#{treeBean.selectedNodes}"
            required="true">
  
        <p:treeNode>  
            <h:outputText value="#{node}" />  
        </p:treeNode>  
    </p:tree>

Thanks

Posted: **01 Jun 2012, 13:58**

write some javascript that loops through all the checkboxes...

Posted: **01 Jun 2012, 14:25**

Not sure about this.

Posted: **01 Jun 2012, 16:13**

@kukeltje: i always try to avoid writing javascripts

@optimus.prime:
what do you mean, being not sure about this? Difficult to implement?

Cheers
Martin

Posted: **17 Jan 2013, 20:21**

Would it be in any way possible to make the tree an EditableValueHolder. Conceptually it is as it is both editable and holds a value. Without this, validation, including required, is very difficult and does not flow well with the JSF lifecycle. I created a stackoverflow question (http://stackoverflow.com/q/14385376/516433) to get suggestions about how to validate this, but if it can be made an EditableValueHolder to start with, then the question is pointless.

Posted: **29 Jan 2013, 09:58**

We're having problem with the tree component losing it's selected value if validation fails for another component. I guess this is basically the same problem? A required attribute should solve this since we don't need to do custom validation in backing bean.

lucastheisen wrote:Would it be in any way possible to make the tree an EditableValueHolder. Conceptually it is as it is both editable and holds a value. Without this, validation, including required, is very difficult and does not flow well with the JSF lifecycle. I created a stackoverflow question (http://stackoverflow.com/q/14385376/516433) to get suggestions about how to validate this, but if it can be made an EditableValueHolder to start with, then the question is pointless.

Posted: **29 Jan 2013, 10:08**

You may consider PrimeFaces PRO so that we can implement your feature requests like these;

http://www.primefaces.org/support.html

Posted: **29 Jan 2013, 11:10**

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Prime Community Forum

Add attribute required to Tree

Add attribute required to Tree

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