How to customize rich:dataTable to only show a part of the resultList

[pete007]

Hello, I customized (in the meaning of cropped) the seam-generated list to use it in a public form:

<rich:dataTable var="person" value="#{personList.resultList}" rendered="#{not empty personList.resultList}">
  <h:column>
    <s:link view="/staffdetails.xhtml" value="#{person.title} #{person.firstName} #{person.lastName}" id="fullname">
      <f:param name="personId" value="#{person.id}"/>
    </s:link>
  </h:column>
  <h:column>#{person.department}</h:column>
</rich:dataTable>

Because there are only 2 columns I wanted to make some more instances of the dataTable and put them from left to right.

So, if resultList is for example 80 elements, I want to show 1-20 in the first table, 21-40 in the next one, and so on ..
Can this simply be done by an additional parameter or do I have to make a special function for each method?

Thanks in advance, Pete

[keithnaas]

I believe you are looking for the first and rows attributes described in the rich:datatable docs

If memory serves me, first is zero indexed.  You can probably do something like this.

<rich:dataTable var="person" value="#{personList.resultList}" rendered="#{not empty personList.resultList}" first="0" rows="20">
...
</rich:dataTable>

<rich:dataTable var="person" value="#{personList.resultList}" rendered="#{not empty personList.resultList}" first="20" rows="20">
...
</rich:dataTable>

[pete007]

Yeah, thank you very much, this works great!

And silly me was trying such a nasty stuff:

.. value="#{personList.resultList.subList(
      java.lang.Math.min(personList.resultList.size(),20),
      java.lang.Math.min(personList.resultList.size(),39))}" ..

Just out of curiosity: I had to add the min() to avoid the ArrayIndexOutOfBounds of sublist, but my nice statement didnt work either. I tested using min() alone and it returned nothing??

..  MIN OF 14,19 = #{java.lang.Math.min(14,19)} <br/> ..

How would I call it, if I needed it once for something?

..

..

for someones information: the preview is freezing very often, I asume it has to deal with the quotes. the last word on the line is often doesn, it or didn .. and although I clear the complete edit field, it doesnt ressurect again. Thats btw the reason why Im writing everything without quotes ;)

Im on Firefox 2.0.0.12.

[alexsmirnov.alsmirnnov.gmail.com]

You can use rich:dataGrid component ( see http://labs.jboss.com/file-access/default/members/jbossrichfaces/freezone/docs/devguide/en/html/RichFacesComponentsLibrary.html#dataGrid ).
It is exactly left-to right multy-column grid layout.