Question

为什么在这个例子中不能更新单行？

    <h:form id="validateFormId">
    <p:dataTable var="elementVal" value="#{testController.players}"
        id="dataTableId" binding="#{dataTableB}" 
        selection="#{testController.selectedPlayers}"
        rowKey="#{elementVal.playerId}" rowIndexVar="idx">
        <p:column>
            <h:outputText value="#{elementVal.playerName}"/>
        </p:column>
        <p:column>
            <p:commandButton value="test" process="@this" update=":validateFormId:dataTableId:@row(#{idx})" action="#{testController.triggerElement('ac', elementVal, idx, dataTableB)}"/>
        </p:column>
        <p:column>
            <p:autoComplete id="fieldA"
                value="#{elementVal.playerPosition}"
                completeMethod="#{autocompleteController.loadSuggestedValues}"
                var="val" itemValue="#{val}" itemLabel="#{val}"
                autoHighlight="false" dropdown="true" my="left bottom"
                at="left top"
                forceSelection="true">
                <p:column>
                    #{val}
                </p:column>
                <p:ajax event="change" process="@this" update=":validateFormId:dataTableId:@row(#{idx})"
                    listener="#{testController.triggerElement('ac', elementVal, idx, dataTableB)}" />
                <p:ajax event="itemSelect" process="@this" update=":validateFormId:dataTableId:@row(#{idx})"
                    listener="#{testController.triggerElement('ai', elementVal, idx, dataTableB)}" />
            </p:autoComplete>
        </p:column>
    </p:dataTable>
</h:form>

当perst“test”按钮时，bean更改playerName，但不更新行。尝试使用primefaces选择器和omnifaces ajax。

    public void triggerElement(String event, Player element, int idx, UIData table) {
    System.out.println("trigger event: " + event);
    System.out.println("item: " + element.getPlayerId());
    System.out.println("value: " + element.getPlayerName());


    element.setPlayerName(element.getPlayerName() + "1");

    Ajax.updateRow(table, idx);

}

primefaces 5.3，omnifaces 2.6.4

Answer 1

@row搜索表达式未在primefaces 5.3中实现，你必须使用primefaces 6.2 +

使用AJAX更新JSF / Primefaces数据表中的单行无法正常工作

1 个答案: