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我有一个<tr:table value="#{mybean.tableValue} binding="#{mybean.tableBinding}"> 我想在启用选择多个的情况下显示。<tr:selectManyCheckbox>我正在为集合使用列表，当我从带有部分触发器的 valueChangeListener 中选择一个值时，这些值是从数据库中获取的。

对于返回的每一行，如果某个值为真，我希望在<tr:table value="#{mybean.tableValue} binding="#{mybean.tableBinding}">

我认为问题是当valueChangeEvent运行时我的绑定值没有更新，尽管我把binding.setValue数据库的结果（我检查了binding.getRowCount()不等于mybean.tableValue.size()）然后选择的值不正确）

知道为什么绑定 rowCount 不等于表的值吗？

更新：

<tr:subform id="subform1">
    <tr:panelFormLayout rows="6">
    <tr:selectManyCheckbox id="val1" label="Values"
      layout="horizontal" value="#{mybean.data1Values}" 
      autoSubmit="true" valueChangeListener="#{mybean.valuesChangeListener}">
        <f:selectItems value="#{mybean.list1Values}"/>
    </tr:selectManyCheckbox>                        
   </tr:panelFormLayout>
</tr:subform>
<tr:spacer width="5px"/>
<tr:subform id="subform2">            
    <tr:table rows="0" partialTriggers=":::subform1:val1 " 
      value="#{mybean.data2Values}" var="item" id="tabladatos" width="75%" 
      rowSelection="multiple" rowBandingInterval="1" binding="#{mybena.tableBinding}"
      verticalGridVisible="true" horizontalGridVisible="true">
    <tr:column id="_head1" headerText="Colum1" width="30%">
        <tr:outputText id="_head1_value" value="#{item.value1}"/>
    </tr:column>
    <tr:column id="_head2" headerText="Colum2" width="30%">
        <tr:outputText id="_head2_value" value="#{item.value2}"/>
    </tr:column>                
    </tr:table>        
</tr:subform>

public void valuesChangeListener(ValueChangeEvent event) {
        if (event != null) {
            List<Integer> valores = (List<Integer>) event.getNewValue();
            data2Values.addAll(databaseDAO.search(valores));
            RowKeySet rks = new RowKeySetImpl();
            rks.clear();
            tableBinding.setSelectedRowKeys(rks);
            tableBinding.setValue(data2Values);
            for (int x = 0; x < tableBinding.getRowCount(); x++) {
                dataEntity row = (dataEntity) tableBinding.getRowData(x);
                tableBinding.setRowIndex(x);
                if (row.isTrue()) {
                    Object key = tableBinding.getRowKey();
                    rks.add(key);//tableBinding.getSelectedRowKeys().add(key);
                } else {
                    //do something
                }
            }
            tableBinding.setVar("item");
            tableBinding.setSelectedRowKeys(rks);
            FacesContext context = FacesContext.getCurrentInstance();
            context.renderResponse();
        }

    }

谢谢！

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1 回答 1

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解决了！我更改了 valueChangeListener：

public void valuesChangeListener(ValueChangeEvent event) {
        if (event != null) {
            List<Integer> valores = (List<Integer>) event.getNewValue();
            data2Values.addAll(databaseDAO.search(valores));
            tableBinding.getSelectedRowKeys().clear;
            tableBinding.setValue(data2Values);
            for (int x = 0; x < tableBinding.getRowCount(); x++) {
                dataEntity row = (dataEntity) tableBinding.getRowData(x);
                tableBinding.setRowIndex(x);
                Object key = tableBinding.getRowKey();
                if (row.isTrue()) {                    
                    tableBinding.getSelectedRowKeys().add(key);
                } else {
                    tableBinding.getSelectedRowKeys().remove(key);
                }
            }
            tableBinding.setVar("item");
            FacesContext context = FacesContext.getCurrentInstance();
            context.renderResponse();
        }

    }
于 2012-08-14T10:42:02.177 回答