jquery实现pager控件示例

复制代码 代码如下:

$.fn.extend({ JPager: function (cfg, pageIndex, pageSize) {
    if (cfg && pageIndex > 0 && pageSize>0) {
        var token = "#" + this.attr("id");
        this.empty();
        var pageFirst = function () {
            $(token).JPager(cfg, 1, pageSize);
        };

        var pagePre = function () {
            $(token).JPager(cfg, pageIndex - 1, pageSize);
        };

        var pageLast = function () {
            $(token).JPager(cfg, parseInt($("#_tot").val()), pageSize);
        };

        var pageNext = function () {
            $(token).JPager(cfg, pageIndex + 1, pageSize);
        };

        var pageNumber = function () {
            $(token).JPager(cfg, parseInt($(this).text()), pageSize);
        };

        var pageGo = function () {
            var index = parseInt($("#_pos").val());
            var total = parseInt($("#_tot").val());
            if (index) {
                if (index > total) {
                    $(token).JPager(cfg, total, pageSize);
                }
                else if (index < 1) {
                    $(token).JPager(cfg, 1, pageSize);
                }
                else {
                    $(token).JPager(cfg, index, pageSize);
                }
            }
        };
        var checkGoNumber = function () {
            if (!Number(this.value)) {
                this.value = "";
            }
            else {
                this.value = Number(this.value);
            }
        };
        var initCustomer = function (recordCount) {
            if (cfg.customer) {
                if (cfg.customer.template) {
                    var t = cfg.customer.template;
                    t = t.replace(/\%total\%/gi, Math.ceil(recordCount / pageSize)).replace(/\%current\%/gi, pageIndex).replace(/\%recordCount\%/gi, recordCount).replace(/\%pageSize\%/gi, pageSize);
                    if (cfg.customer.position == "right") {
                        $("#_right").after(t);
                    }
                    else {
                        $("#_left").before(t);
                    }
                }
            }
        };

        var changeState = function (total) {
            if (pageIndex == 1) {
                $("#_first").attr("class", "unable");
                $("#_pre").attr("class", "unable");
            }
            else {
                $("#_first").bind("click", pageFirst).attr("class", "number");
                $("#_pre").bind("click", pagePre).attr("class", "number");
            }
            if (pageIndex == total) {
                $("#_last").attr("class", "unable");
                $("#_next").attr("class", "unable");
            }
            else {
                $("#_last").bind("click", pageLast).attr("class", "number");
                $("#_next").bind("click", pageNext).attr("class", "number");
            }
        };
        var initNumber = function (total, count, current) {
            if (total > 0 && count > 0) {
                if (current < 1) {
                    current = 1;
                }
                if (current > total) {
                    current = total;
                }
                var endIndex = total;
                var startIndex = 1;
                var temp = current + Math.floor(count / 2);
                if (temp < total) {
                    if (temp < count) {
                        endIndex = count;
                    }
                    else {
                        startIndex = temp - count + 1;
                        endIndex = temp;
                    }
                }
                else {
                    if (total > count) {
                        startIndex = total - count + 1;
                    }
                }
                $("#_number").empty();
                for (var i = startIndex; i <= endIndex; i++) {
                    var html = $("<span></span>").text(i).bind("click", pageNumber);
                    if (i == current) {
                        $("#_number").append(html.attr("class", "selected"));
                    }
                    else {
                        $("#_number").append(html.attr("class", "number"));
                    }
                }
            }
        };

        var initPager = function (data) {
            if ($.isArray(data.SearchResult) && data.RecordCount > 0) {
                $(token).append("<span id='_left'><span id='_first' class='spcial'>首页</span> <span id='_pre' class='spcial'>上一页</span></span> <span id='_number'></span><span id='_go'><input id='_pos' type='text'/><input id='_to' type='button' value='GO'/></span> <span id='_right'><span id='_next' class='spcial'>下一页</span> <span id='_last' class='spcial'>末页</span></span><input id='_tot' type='hidden'/>");
                var total = Math.ceil(data.RecordCount / pageSize);
                $("#_tot").val(total);
                $("#_pos").bind("blur", checkGoNumber);
                $("#_to").bind("click", pageGo);

                changeState(total);
                if (cfg.showNumber && cfg.count > 0) {
                    initNumber(total, cfg.count, pageIndex);
                }
                initCustomer(data.RecordCount);
            }
        };

        if (cfg.action) {
            if (cfg.action.url && cfg.action.data) {
                var d = cfg.action.data.substr(0, cfg.action.data.lastIndexOf("}")) + ',"pageIndex":' + pageIndex + ',"pageSize":' + pageSize + "}";
                if (cfg.action.callback && $.isFunction(cfg.action.callback)) {
                    $.ajax({
                        type: "post",
                        url: cfg.action.url,
                        dataType: "json",
                        contentType: "text/json",
                        data: d,
                        success: function (data) {
                            initPager(data.d);
                            cfg.action.callback(data.d);
                        }
                    });
                }
                else {
                    $.ajax({
                        type: "post",
                        url: cfg.action.url,
                        dataType: "json",
                        contentType: "text/json",
                        data: d,
                        success: function (data) {
                            initPager(data.d);
                        }
                    });
                }
            }
        }
    }
}
});

复制代码 代码如下:

#_pos {
    width: 40px;
}
.unable
{
    color: #BCC0BB;
}
.number
{
    margin: 2px;
    color:#0000FF;
    text-decoration:underline;
}
.selected
{
    margin: 2px;
    color: #FF0000;
    font-weight: bold;
}

复制代码 代码如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>分页控件示例</title>
    <link href="CSS/JPager.css" rel="stylesheet" type="text/css" />
    <script src="JS/jquery.min.js" type="text/javascript"></script>
    <script src="JExtension/JPager.js" type="text/javascript"></script>
    <script type="text/javascript">
        $(function () {         
            $("#pager").JPager({ customer:{template:"%cuRRent%"},count: 10, action: { url: "Service/JService.svc/GetPersons", data: '{"name":"zhoulq"}'}, showNumber: true },1,5);
        });       
    </script>
</head>
<body>
<table>
</table>
<div id="pager"></div>
</body>
</html>

复制代码 代码如下:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;

namespace JPlugin
{
    [ServiceContract]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class JService
    {
        [OperationContract]
        [WebInvoke]
        public PageObject<Person> GetPersons(string name,int pageIndex,int paseSize)
        {
            return new PageObject<Person>(){RecordCount = 23,SearchResult = new List<Person>(){new Person(){Name="zhpulq",Age = 28},new Person(){Name = "zhouxy",Age = 24}}};
        }
    }

    public class PageObject<T>
    {
        public int RecordCount { get; set; }
        public List<T> SearchResult { get; set; }
    }
}