Question

是否可以使用事件？

在p：datatable中选择带有回车键的行？

<p:dataTable value="#{bean.list}" var="l" selection="#{bean2.user}" rowKey="#{l}" selectionMode="single">
    <p:ajax event="keyup" update="@form"/>
    <p:column>
        <h:outputText value="#{l.id}"/>
    </p:column>
</p:dataTable>

Answer 1

是的，你可以！请查看以下示例代码：

视图

<h:form id="mainForm">
    <p:dataTable id="dt" value="#{rowSelectionBean.list}" var="item" 
                 selectionMode="single" selection="#{rowSelectionBean.selectedRow}"
                 widgetVar="dtVar" rowKey="#{item.id}">
        <p:column headerText="ID">
            #{item.id}
        </p:column>
        <p:column headerText="Name">
            #{item.name}
        </p:column>
    </p:dataTable>

    <p:outputPanel id="display">
        <h:outputText value="Selected row: #{rowSelectionBean.selectedRow.name}" rendered="#{not empty rowSelectionBean.selectedRow}" />
    </p:outputPanel>

    <p:hotkey bind="return" update="display" process="dt" />
</h:form>

The Bean

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;

@ManagedBean
@ViewScoped
public class RowSelectionBean implements Serializable {

    private List<SimpleBean> list;

    private SimpleBean selectedRow;

    @PostConstruct
    public void setup() {
        list = new ArrayList<SimpleBean>();
        list.add(new SimpleBean(11, "A"));
        list.add(new SimpleBean(22, "B"));
        list.add(new SimpleBean(33, "C"));
    }

    public SimpleBean getSelectedRow() {
        return selectedRow;
    }

    public void setSelectedRow(SimpleBean selectedRow) {
        this.selectedRow = selectedRow;
    }

    public List<SimpleBean> getList() {
        return list;
    }

}

在p：datatable jsf2中输入key作为事件

1 个答案: