//每次只显示5个页码
(function ($) {
//设定页码方法，初始化
$.fn.setPager = function (options) {
var opts = $.extend({}, pagerDefaults, options);
return this.each(function () {
$(this).empty().append(setPagerHtml(parseInt(options.RecordCount), parseInt(options.PageIndex), parseInt(options.PageSize), options.buttonClick));
});
};
//设定页数及html
function setPagerHtml(RecordCount, PageIndex, PageSize, pagerClick) {
var $content = $("<ul class="pages"></ul>");
var startPageIndex = 1;
//若页码超出
if (RecordCount <= 0) RecordCount = PageSize;
//末页
var endPageIndex = parseInt(RecordCount % parseInt(PageSize)) > 0 ? parseInt(RecordCount / parseInt(PageSize)) + 1 : RecordCount / parseInt(PageSize)
if (PageIndex > endPageIndex) PageIndex = endPageIndex;
if (PageIndex <= 0) PageIndex = startPageIndex;
var nextPageIndex = PageIndex + 1;
var prevPageIndex = PageIndex - 1;
if (PageIndex == startPageIndex) {
$content.append($("<li><span class="beginEnd">首页</span></li>"));
$content.append($("<li><span class="beginEnd">上一页</span></li>"));
} else {
$content.append(renderButton(RecordCount, 1, pagerClick, "<span class="beginEnd">首页</span>"));
$content.append(renderButton(RecordCount, prevPageIndex, pagerClick, "<span class="beginEnd">上一页</span>"));
}
//这里判断是否显示页码
if (pagerDefaults.ShowPageNumber) {
// var html = "";
//页码部分隐藏 只显示中间区域
if (endPageIndex <= 5 && PageIndex <= 5) {
for (var i = 1; i <= endPageIndex; i++) {
if (i == PageIndex) {
$content.append($("<li><span class="current">" + i + "</span></li>"));
} else {
$content.append(renderButton(RecordCount, i, pagerClick, i));
}
}
} else if (endPageIndex > 5 && endPageIndex - PageIndex <= 2) {
$content.append($("<li class="dotted">...</li>"));
for (var i = endPageIndex - 4; i <= endPageIndex; i++) {
if (i == PageIndex) {
$content.append($("<li><span class="current">" + i + "</span></li>"));
} else {
$content.append(renderButton(RecordCount, i, pagerClick, i));
}
}
} else if (endPageIndex > 5 && PageIndex > 3) {
$content.append($("<li class="dotted">...</li>"));
for (var i = PageIndex - 2; i <= PageIndex + 2; i++) {
if (i == PageIndex) {
$content.append($("<li><span class="current">" + i + "</span></li>"));
} else {
$content.append(renderButton(RecordCount, i, pagerClick, i));
}
}
$content.append($("<li class="dotted">...</li>"));
} else if (endPageIndex > 5 && PageIndex <= 3) {
for (var i = 1; i <= 5; i++) {
if (i == PageIndex) {
$content.append($("<li><span class="current">" + i + "</span></li>"));
} else {
$content.append(renderButton(RecordCount, i, pagerClick, i));
}
}
$content.append($("<li class="dotted">...</li>"));
}
}
if (PageIndex == endPageIndex) {
$content.append($("<li><span class="beginEnd">下一页</span></li>"));
$content.append($("<li><span class="beginEnd">末页</span></li>"));
} else {
$content.append(renderButton(RecordCount, nextPageIndex, pagerClick, "<span class="beginEnd">下一页</span>"));
$content.append(renderButton(RecordCount, endPageIndex, pagerClick, "<span class="beginEnd">末页</span>"));
}
return $content;
}
function renderButton(recordCount, goPageIndex, EventHander, text) {
var $goto = $("<li><a>" + text + "</a></li>"");
$goto.click(function () {
EventHander(recordCount, goPageIndex);
});
return $goto;
}
var pagerDefaults = {
DefaultPageCount: 1,
DefaultPageIndex: 1,
PageSize: 10,
ShowPageNumber: true //是否显示页码
};
})(jQuery);
//pagerDefaults.PageSize