顯示數據表列的數據

Question

我在JSF <h:dataTable>上使用jQuery DataTables插件 。 在此頁面中，我有86條記錄。

+++++++++++++++++++++++++++++++++++++
+ SN. +    Name    +   Email        +
+++++++++++++++++++++++++++++++++++++
+  1  +   Name 1   +  Email 1       +
+  2  +   Name 2   +  Email 2       +
+  3  +   Name 3   +  Email 3       +
+........
+  4  +   Name 4   +  Email 4       +
+++++++++++++++++++++++++++++++++++++
+                 1.2.3.4..... Next +
+++++++++++++++++++++++++++++++++++++

我想要的是以警報格式顯示第二列數據，即顯示將在datable上顯示的名稱。 每個表有5組記錄。 因此，當我單擊1時，我應該收到前5條記錄的警報。 單擊2后，我應該得到6-10條記錄的名稱。

我嘗試通過此鏈接使用fnPagingInfo ，但這沒有提供我要查找的信息（它提供了頁碼，總頁碼等）。

有什么想法可以完成嗎？

---

我嘗試了以下。

var cells = [];
var rows = $("#userList").dataTable().fnGetNodes();
for(var i=0;i < rows.length;i++)
{
    cells.push($(rows[i]).find("td:eq(0)").html()); 
}
alert(cells);

這給我警報， Name 1, Name 2, Name 3, ...

這可以正常工作，但是當我對數據進行排序時會出現問題... :(

當我對數據進行排序（將序列號排序為4,3,2,1）時，仍然會收到警報， Name 1, Name 2, Name 3, ...

警報應顯示Name 4, Name 3, Name 2, ...

下面的代碼也發生了同樣的情況。

var secondCellArray = [];
$.each(oTable.fnGetData(), function(i, row) {
    secondCellArray.push(row[0]);
});

Answer 1

好吧，這就是我所做的...

<script type="text/javascript">
    $(document).ready(function(){
        var currData = [];
        var myFinalString = "";

        $('#userList').dataTable( {
            "bPaginate": true,
            "bSort": true,
            "sPaginationType": "full_numbers",
            "bJQueryUI": true,
            "bRetrieve": true,
            "fnPreDrawCallback": function(oSettings) {
                /* reset currData before each draw*/
                currData = [];
                myFinalString= "";
            },
            "fnRowCallback": function(nRow, aData, iDisplayIndex, iDisplayIndexFull) {
                   /* push this row of data to currData array*/
                   currData.push(aData);
                   myFinalString = myFinalString + aData + "xxxyyyzzz";
            },
            "fnDrawCallback": function () {

                var myTextBox2 = document.getElementById('myHiddenValForId');
                myTextBox2.value = myFinalString;
                myTextBox2.onchange();

                var myTextBox = document.getElementById('myHiddenValForInc');
                myTextBox.value = this.fnPagingInfo().iStart + "," + this.fnPagingInfo().iEnd;
                myTextBox.onchange();

                var cells = [];
                var cells2 = [];
                oTable = $('#userList').dataTable();

                var rows = $("#userList").dataTable().fnGetNodes();

                for(var i=0;i &lt; rows.length;i++) {
                    var data = oTable.fnGetData( i,0 );
                    cells.push($(rows[i]).find("td:eq(0)").html()); 
                    cells2.push(data); 
                }

                var secondCellArray = [];
                $.each(oTable.fnGetData(), function(i, row) {
                    secondCellArray.push(row[0]);
                });
            }
        });
    });
    $.fn.dataTableExt.oApi.fnPagingInfo = function ( oSettings )
    {
        return {
            "iStart":         oSettings._iDisplayStart,
            "iEnd":           oSettings.fnDisplayEnd(),
            "iLength":        oSettings._iDisplayLength,
            "iTotal":         oSettings.fnRecordsTotal(),
            "iFilteredTotal": oSettings.fnRecordsDisplay(),
            "iPage":          oSettings._iDisplayLength === -1 ?
                0 : Math.ceil( oSettings._iDisplayStart / oSettings._iDisplayLength ),
            "iTotalPages":    oSettings._iDisplayLength === -1 ?
                0 : Math.ceil( oSettings.fnRecordsDisplay() / oSettings._iDisplayLength )
        };
    };
</script>

通過f:ajax傳遞這些值

<h:form prependId="false">
    <h:inputText id="myHiddenValForInc" value="#{SearchBean.hiddenVal001}" style="display: none;">
        <f:ajax listener="#{SearchBean.printMyHiddenDetails()}" event="valueChange" />
    </h:inputText>

    <h:inputText id="myHiddenValForId" value="#{SearchBean.hiddenVal002}" style="display: none;" >
        <f:ajax listener="#{SearchBean.printMyHiddenDetails2()}" event="valueChange" />
    </h:inputText>
</h:form>

.java

`printMyHiddenDetails()` have all stuff for finding names & `printMyHiddenDetails2()` don't have any code


public void printMyHiddenDetails() {
    // my code
}


public void printMyHiddenDetails2() {
    // noting here... this is just for passing data...
}