如何从Bean中将Primefaces dataTable跳转到最后一页?

问题描述

我在.xhtml中有一个像这样的数据表:

I have into my .xhtml a datatable looking like this :

<p:dataTable var="category" value="#{beanView.categories}" paginator="true" rows="5"
 paginatorTemplate="{RowsPerPageDropdown} {FirstPageLink} {PreviousPageLink} {CurrentPageReport} {NextPageLink} {LastPageLink}"
 rowsPerPageTemplate="5,10" id="categoryDT" styleClass="categoryClass"
 editable="true" lazy="false" rowKey="#{category.id}">
 <!-- columns -->
<f:facet name="footer">
    <p:commandButton id="btnNewCat"
      oncomplete="jQuery('.categoryClass').find('span.ui-icon-pencil').last().click();"
    actionListener="#{beanView.onNewCategory}"
    update="categoryDT" icon="ui-icon-plus" title="New Category" value="New Category" ></p:commandButton>
</f:facet></p:dataTable>

还有我的bean beanView :

public void onNewCategory(final ActionEvent actionEvent) {

    try {
        int rowCount = dataTable.getRowCount();
        int rowsPerPage = dataTable.getRows();
        int lastPage = rowCount / rowsPerPage;
        int rowFirst = (lastPage * rowsPerPage);

        if (rowCount >= rowsPerPage) {
            dataTable.setFirst(rowFirst);
            dataTable.setPageLinks(lastPage + 1);
            dataTable.setRowIndex(rowCount - 1);
        } else {
            ....
        }

        ....
     }
 }

但这实际上不起作用！最后一页将不会显示！

But this actually doesnt work! the last page will not be show!

是否可以从bean中单击我的数据表的最后一页按钮?还是有另一种解决方法！

It's possible to Click on the last Page button of my datatable from the bean? or is there another way to solve it!

感谢您的帮助

推荐答案

您可以通过commandButton的oncomplete来实现:

You can achieve this by the oncomplete of the commandButton:

<p:commandButton oncomplete="PF('dataTableWV').paginator.setPage(PF('dataTableWV').paginator.cfg.pageCount - 1);"/>

或者从托管bean:

RequestContext.getCurrentInstance().execute("PF('dataTableWV').paginator.setPage(PF('dataTableWV').paginator.cfg.pageCount - 1);");

注意:dataTableWV是dataTable的widgetVar.

Note: dataTableWV is the widgetVar of the dataTable.

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