在Primefaces数据表中设置从支持Bean选择的行 [英] Set selected row from backing bean in primefaces datatable

问题描述

我正在将primefaces数据表与可点击的行一起使用，我需要找到一种方法来设置从支持bean中选择的行.

I am using primefaces datatable with clickable rows and I need to find way how to set selected row from backing bean.

有我的数据表定义:

<p:dataTable id="cablePathTable" var="cablePath" value="#{commonTableBean.cableLazyModel}" rows="100"
         selectionMode="single" selection="#{commonTableBean.selectedCablePathTblRow}" 
         rowIndexVar="rowIndex"  widgetVar="datatableVar"
         emptyMessage="---">  
<p:ajax event="rowSelect" process="@this" update=":form:portFieldset" />

<p:column headerText="No">  
    <h:outputText value="#{cablePath.column1}" />  
</p:column>
<p:column headerText="Port A">  
    <h:outputText value="#{cablePath.column4}" />  
</p:column>
<p:column headerText="Port B">  
    <h:outputText value="#{cablePath.column5}" />  
</p:column>

我尝试了以下方法，但没有成功. 在支持bean中，我添加了方法:

I have tried following approach, but with no success. In backing bean I have added method:

public void test(){
    DataTable dataTable = (DataTable) FacesContext.getCurrentInstance().getViewRoot().findComponent("form:cablePathTable");
    dataTable.setRowIndex(2);
}

并且我已将测试按钮添加到XHTML页面:

And I have added test butoon to the XHTML page:

<p:commandButton process="@this" update=":form:cablePathTable" value="set2row" action="commonTableBean.test"/>

但是数据表上的nothig已更改，选择未更改...

But nothig is changed on the datatable, selection didn't change...

请问如何解决这个问题?

Please any ideas how to solve this problem?

推荐答案

只需在selection="#{commonTableBean.selectedCablePathTblRow}"后面设置值即可.

Just set the value behind selection="#{commonTableBean.selectedCablePathTblRow}".

public void test(){
    selectedCablePathTblRow = cablepath;
}

这篇关于在Primefaces数据表中设置从支持Bean选择的行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！