输入键上的Primefaces数据表过滤不起作用 [英] Primefaces datatable filtering on enter key not working

问题描述

我在primefaces数据表中添加了一个全局过滤器.当我按Enter键时，过滤器文本不会发送到服务器进行查询.我的代码如下:

I added a global filter to the primefaces datatable. When I hit enter, the filter text is not being sent to the server for query. My code is as follows :

<h:form id="searchResultsForm">
<p:dataTable value="#{searchController.resultItems}"
         var="item" editable="false"
         id="searchResultsTable" lazy="true"
         tableStyleClass="viewedHistoryTable"
         emptyMessage="No items"
         widgetVar="searchResultsTableVar"
         currentPageReportTemplate="({startRecord} - {endRecord} of {totalRecords})"
         paginatorTemplate="{FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown} {CurrentPageReport}"
         paginator="true" rows="25" rowsPerPageTemplate="10,25,50,100"   
         rowKey="#{item.abbr}">
<f:facet name="header">
    <p:outputPanel>
        <h:outputText value="Search:" />
        <p:inputText  id="globalFilter" onkeyup="if (event.keyCode === 13){PF('searchResultsTableVar').filter();}" style="width:150px" placeholder="Filter results"/>
    </p:outputPanel>
</f:facet>
<p:column rendered="true">
    <h:outputText value="#{item.title}" />
    <br />
    <h:outputText value="#{item.abbr}" styleClass="searchResultsAbbr" />
</p:column>                                    
</p:dataTable>
</h:form>

如果删除if条件以检查Enter的事件键代码，则每次按键时都会将过滤器字符串发送到服务器.不知道为什么客户端在回车时发送一个空字符串.有什么想法吗?

If I remove the if condition to check the event keycode of Enter, the filter string is sent to the server on every key press. Not sure why the client is sending a empty string on enter. Any ideas?

推荐答案

我想分享我的工作代码:

I wanted to share my working code :

<h:form id="searchResultsForm">                            
<p:dataTable value="#{searchController.resultItems}"
             var="item" editable="false"
             id="searchResultsTable" lazy="true"
             tableStyleClass="viewedHistoryTable"
             emptyMessage="No items"
             widgetVar="searchResultsTableVar"
             currentPageReportTemplate="({startRecord} - {endRecord} of {totalRecords})"
             paginatorTemplate="{FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown} {CurrentPageReport}"
             paginator="true" rows="25" rowsPerPageTemplate="10,25,50,100"   
             rowKey="#{item.abbr}" selectionMode="single" selection="#{searchController.currItem}">
    <f:facet name="header">
        <h:panelGroup>
            <p:outputPanel style="padding-bottom: 4px;">                                        
                <p:inputText  id="globalFilter" onchange="PF('searchResultsTableVar').filter();" style="width:60%;" placeholder="Filter results"/>
                <p:commandButton id="Search" value="Search"  process="@this" update="@this" style="font-size: 0.8em;"/>                                        
            </p:outputPanel>                
        </h:panelGroup>                                                                        
    </f:facet>                                                              
    <p:column rendered="true">
        ......
    </p:column>                                    
</p:dataTable>
</h:form>

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