Display datatable with auto selected checkbox

[Luuzz]

Hello Primefaces Guys,
I have a datatable with check boxes in each row. On first display, i want some rows to be selected automatically. I tried using the selection attribute but apparently its value is never read It seems to be used for storing selected items after submit.
Is there a way to do so ?
Thanks in advance.

[healeyb]

The value of the value= attribute of the component when it is rendered
is what will be initially displayed. If you have further questions don't
hesitate to ask.

[Luuzz]

I use the value attribute to get the datatable rows and they are all displayed.
But i want some of them to be checked on first display.

[CeeJay]

im not sure if this is the answer you are loolink for, but i try to help.

Code: Select all

...
 <p:column styleClass="w30Center" sortBy="#{auftrag.checkvalue}">  
             <f:facet name="header">  
                 <h:outputText value="Some text:" />  
             </f:facet>  
             <h:selectBooleanCheckbox value="#{auftrag.checkvalue}" valueChangeListener="#{a_bean.valueChangeListener}"/>
  </p:column>
...

auftrag should be a class and checkvalue should have a getter and a setter from type boolen. the value of checkvalue you can modify in your code.

i hope this was helpfully

[Luuzz]

Fine I am going to try this.
Thank you

[cagatay.civici]

If you populate your selection, the checkboxes corresponding to those rows will be checked on initial display. Make sure to override equals and hashcode.

http://www.primefaces.org/showcase/ui/d ... eckbox.jsf

[Luuzz]

Hello,
This is working great. I had overridden the equals method. My mistake was that the selection was declared as a collection and not an array.
Thank you all.
Primefaces rocks !!

[chinavictor]

hello, could you share you code? i have the save problem, but couldn't fix it, please help me, thanks.