限制分頁鏈接編號javascript

Question

我有這個分頁腳本，除了這個小問題，完美的作品。 所以現在我想限制導航數字。 但我不能通（this.currentPage）

window.thisPager= new Pager('comments', 10); 
thisPager.init(); 
thisPager.showPageNav('thisPager', 'pageNavPosition'); 
thisPager.showPage(1); 



function Pager(class_name, itemsPerPage) { 
    this.class_name = class_name; 
    this.itemsPerPage = itemsPerPage; 
    this.currentPage = pageNumber; 
    this.pages = 0; 
    this.inited = true; 

    this.showRecords = function(from, to) {   
     var rows = $('.' + class_name); 
     for (var i = 0; i < rows.length; i++) { 
      if (i < from || i > to) 
       rows[i].style.display = 'none'; 
      else 
       rows[i].style.display = ''; 
     } 
    } 

    this.showPage = function(pageNumber) { 
     if (! this.inited) { 
      alert("not inited"); 
      return; 
     } 

     var oldPageAnchor = document.getElementById('pg'+this.currentPage); 
     oldPageAnchor.className = 'pg-normal'; 

     this.currentPage = pageNumber; 
     var newPageAnchor = document.getElementById('pg'+this.currentPage); 
     newPageAnchor.className = 'pg-selected'; 

     var from = (pageNumber - 1) * itemsPerPage; 
     var to = from + itemsPerPage - 1; 
     this.showRecords(from, to); 
    } 


    this.prev = function() { 
     if (this.currentPage > 1) 
      this.showPage(this.currentPage - 1); 
    } 

    this.next = function() { 
     if (this.currentPage < this.pages) { 
      this.showPage(this.currentPage + 1); 
     } 
    } 

    this.last = function() { 
     if (this.currentPage < this.pages) { 
      this.showPage(this.pages); 
     } 
    } 

    this.first = function() { 
     if (this.currentPage > 1) { 
      this.showPage(1); 
     } 
    }    

    this.init = function() { 
     var rows = $('.' + class_name); 
     var records = (rows.length); 
     this.pages = Math.ceil(records/itemsPerPage); 
     this.inited = true; 
    } 

    this.showPageNav = function(pagerName, positionId) { 
     if (! this.inited) { 
      alert("not inited"); 
      return; 
     } 
     var element = document.getElementById(positionId); 

var pagerHtml = '<span onClick="'+pagerName+'.first();" class="pg-normal"> « First</span>'; 
     pagerHtml += '<span onClick="' + pagerName + '.prev();" class="pg-normal"> &#171 Prev </span> | '; 

     for (var page = 1; page <= this.currentpages; page++) 

      pagerHtml += '<span id="pg' + page + '" class="pg-normal" onClick="' + pagerName + '.showPage(' + page + ');">' + page + '</span> | '; 
     pagerHtml += '<span onClick="'+pagerName+'.next();" class="pg-normal"> Next &#187;</span>'; 
pagerHtml += '<span onClick="'+pagerName+'.last();" class="pg-normal"> Last &#187;</span>'; 

     element.innerHTML = pagerHtml; 
    } 
} 

請點擊此鏈接 http://jsfiddle.net/J3Qnx/16/

我想this.currentPage進入這個

for (var page = 1; page <= this.currentpage + 5; page++) 

但它的不按我期望的那樣工作 請幫幫忙

Answer 1

看起來這是一個使用wro ng情況。它看起來像您在整個腳本中使用currentPage，但您試圖在for循環中調用currentpage。嘗試修復案例，看看是否有效。

Answer 2

var class_name = "comments"; 
var rows = $('.' + class_name); 
var itemsPerPage = 10; 
var currentPage = 1; 
var inited = false; 
var pagerName = "thisPager"; 
var positionId = "pageNavigation"; 

var records = $('.' + class_name).length; 
var pages = Math.ceil(records/itemsPerPage); 


showRecords(0, 9); 
navigator(currentPage, positionId, pages); 


function showRecords(from, to){ 
for (var i = 0; i < rows.length; i++) { 
    if (i < from || i > to) 
     rows[i].style.display = 'none'; 
    else 
     rows[i].style.display = ''; 
}} 


function showPage(pageNumber) { 
currentPage = pageNumber; 
var from = (currentPage - 1) * itemsPerPage; 
var to = from + itemsPerPage - 1; 
var positionId = "pageNavigation"; 
var records = $('.' + class_name).length; 
var pages = Math.ceil(records/itemsPerPage); 
showRecords(from, to, rows); 
navigator(currentPage, positionId, pages); 
var oldPageAnchor = document.getElementById('pg'+pageNumber); 
oldPageAnchor.className = "pg-selected"; 

} 

function navigator(currentPage, positionId, pages){  



var element = document.getElementById(positionId); 

var pagerHtml = ''; 
for (var page = currentPage - 4; page <= currentPage + 4; page++) 
if (page >= 1) 
if (page <= pages) 


    pagerHtml += '<span id="pg' + page + '" class="pg-normal" onClick="showPage(' + page + ');">' + page + '</span> | '; 
element.innerHTML = pagerHtml; 


} 
​