Sort your data in getArrlist_providers depending on the values of
sortcol and sortascending.
Collections.sort(arrlist_providers, YourComparator) may sort the list.
Regards
Thomas
On 12/28/05, Tom Butler <[EMAIL PROTECTED]> wrote:
>
>
>
> Can someone please help me to understand how to configure or code a column
> sort for a Tomahawk datatable? Specifically, I'm not clear on how or what
> sort method is called? Do the Tomahawk components take care of the sort for
> me, or do I need to code the sort myself (and if so where)?
>
>
>
> I think I have the JSP coded correctly:
>
> <t:dataTable id="data" styleClass="scrollerTable"
>
> var="providers"
>
> value="#{searchproviders_bean.arrlist_providers}"
>
> preserveDataModel="false"
>
> rows="20"
>
> sortColumn="#{searchproviders_bean.sortcolumn}"
>
> sortAscending="#{searchproviders_bean.sortascending}"
>
> preserveSort="true">
>
>
>
>
> <h:column>
>
> <f:facet name="header">
>
> <t:commandSortHeader columnName="id" arrow="true" immediate="false">
>
> h:outputText value="#{messages['sort_id']}" />
>
> </t:commandSortHeader>
>
> </f:facet>
>
> <h:outputText value="#{providers.id}" />
>
> </h:column>
>
> <h:column>
>
> <f:facet name="header">
>
> <t:commandSortHeader columnName="category" arrow="true"
> immediate="false">
>
> <h:outputText value="#{messages['sort_category']}" />
>
> </t:commandSortHeader>
>
> </f:facet>
>
> <h:outputText value="#{providers.category}" />
>
> </h:column>
>
> </t:dataTable>
>
>
>
> 'searchproviders_bean' is the backing bean, and 'arrlist_providers' is an
> ArrayList. The ArrayList is initially sorted when it is retrieved from the
> database. After the data is retrieved, I disconnect from the database. The
> data in the ArrayList will be read-only (will contain search results list –
> the data is not updateable.) When the data is displayed to the user, I
> want them to be able to sort the data by clicking on the column headings.
>
>
>
> I have also added the 'sortcolumn' and 'sortascending' properties to the
> backing bean as strings with the appropriate getter/setter methods:
>
>
>
> public class searchproviders_bean {
>
> private ArrayList arrlist_providers;
>
> private String sortcol;
>
> private String sortascending;
>
> …..
>
>
>
>
>
> The part where I am confused is how to implement the sort method. I know
> that the ArrayList gets 'wrapped' by a DataModel object (though I only
> understand this at a high-level), but I'm not sure how to configure or code
> the sort? Does the Tomahawk DataModel implement the sort or do I need to
> code the sort? If I need to code the sort, can someone please help me to
> understand where to implement this method and provide any helpful code
> examples?
>
>
>
> BTW, currently, the datatable is displaying, but when I click on the column
> headings, the data does not sort (but the arrows on the column header change
> directions.) Also, I do have a datascroller connected to the datatable that
> is working correctly:
>
>
>
>
>
> Thanks
>
> Tom
>
>
>
>
>
>
>
>
--
http://www.irian.at
Your JSF powerhouse -
JSF Consulting, Development and
Courses in English and German
Professional Support for Apache MyFaces
