龙的传人--Xml_javascript分页


<script language="javascript" type="text/javascript">
var xmlDoc;
var nodeIndex;
var pageIndex;
var pageSize=13;
var lastPage;   //最后一页
var overSize    //最后一页的记录数
function getxmlDoc()
{
  xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
    var currNode;
    xmlDoc.async=false;
    xmlDoc.load("myTest.xml");
    if(xmlDoc.parseError.errorCode!=0)
    {
        var myErr=xmlDoc.parseError;
        alert("出错！"+myErr.reason);
    }
    getRecordCount();
    onFirst();
    
}
function getRecordCount()
{
    var personNode= xmlDoc.selectNodes("/Root")[0];
    var recordCount=personNode.childNodes.length;
    var pageCount=Math.ceil(recordCount/pageSize);
    document.getElementById("txtPageCount").value=pageCount;
    document.getElementById("txtRecordCount").value=recordCount;
    overSize=recordCount%pageSize;
    if(overSize>0)
    {
        lastPage=recordCount-overSize;
    }
    else
    {
        lastPage=recordCount-pageSize;
    }
    
}
function getPageRecord(pageIndex,pageSize)
{
     clearRow("myTable");    
    var personNode= xmlDoc.selectNodes("/Root")[0];
    var currNode=personNode.childNodes[pageIndex];
    for(var i=pageIndex;i<pageIndex+pageSize;i++)
    {
        var arr=new Array();
        var nNode= xmlDoc.selectSingleNode("Root/Person["+i+"]") ;
        arr[0]=nNode.getAttribute("Id");    //序号
        arr[1]=nNode.childNodes[0].text;    //工号
        arr[2]=nNode.childNodes[1].text;    //姓名
        arr[3]=nNode.childNodes[2].text;    //性别
        arr[4]=nNode.childNodes[3].text;    //部门
        arr[5]=nNode.childNodes[4].text;    //职位
        arr[6]=nNode.childNodes[5].text;    //地址
        
//        arr[0]=personNode.childNodes[i].getAttribute("Id");    //序号
//        arr[1]=personNode.childNodes[i].childNodes[0].text;    //工号
//        arr[2]=personNode.childNodes[i].childNodes[1].text;    //姓名
//        arr[3]=personNode.childNodes[i].childNodes[2].text;    //性别
//        arr[4]=personNode.childNodes[i].childNodes[3].text;    //部门
//        arr[5]=personNode.childNodes[i].childNodes[4].text;    //职位
//        arr[6]=personNode.childNodes[i].childNodes[5].text;    //地址
        addRow(i+1,"myTable",arr);
    }    
}
function onFirst()
{
    pageIndex=0;
    var currIndex=pageIndex;
    getPageRecord(currIndex,pageSize) 
    pageIndex=currIndex ;
    document.getElementById("txtCurrPage").value=(pageIndex / pageSize) + 1;
    document.getElementById("txtCurrPageRecord").value=pageSize;
}
function onPrev()
{
    var currIndex=pageIndex;
    currIndex-=pageSize;
    getPageRecord(currIndex,pageSize)
    pageIndex=currIndex;
    document.getElementById("txtCurrPage").value=(pageIndex / pageSize) + 1;
    document.getElementById("txtCurrPageRecord").value=pageSize;
   
}
function onNext()
{    
    var currIndex=pageIndex;
    currIndex+=pageSize;
    getPageRecord(currIndex,pageSize)
    pageIndex=currIndex;
    document.getElementById("txtCurrPage").value=(pageIndex / pageSize) + 1;
    document.getElementById("txtCurrPageRecord").value=pageSize;
    
}
function onLast()
{
    if(overSize>0)
    {
        getPageRecord(lastPage,overSize)
        document.getElementById("txtCurrPageRecord").value=overSize;
    }
    else
    {
        getPageRecord(lastPage,pageSize)
        document.getElementById("txtCurrPageRecord").value=pageSize;
    }    
    pageIndex=lastPage;
    document.getElementById("txtCurrPage").value=(pageIndex / pageSize) + 1;
}
function toPage()
{    
    var index=document.getElementById("txtCurrPage").value
    var currIndex=(index-1)*pageSize;      
    if(event.keyCode==13)
    {
         getPageRecord(currIndex,pageSize);
    }
    pageIndex=currIndex;
}
function addRow(i,dataGridId,arr)
{
var row=document.createElement("tr");
var cell=createCellWidthText(i);
row.appendChild(cell);
for(var j=0;j<arr.length;j++)
{
cell=createCellWidthText(arr[j]);
row.appendChild(cell);
}
document.getElementById(dataGridId).firstChild.appendChild(row);
}
function createCellWidthText(text)
{
var cell = document.createElement("td");
var textNode = document.createTextNode(text);
cell.appendChild(textNode);
return cell;
}
function clearRow(obj)
{
var table=document.getElementById(obj);
var nodeTbody=table.firstChild
var length=nodeTbody.childNodes.length;
for(var i=length-1;i>0;i--)
{
nodeTbody.removeChild(nodeTbody.childNodes[i]);
}
}
演示：http://home.goofar.com/lkc311/Default.htm