jQuery+ROW_NUMBER结合Repeater实现简单分页

 

页面分页对于程序员来说最熟悉不过，在WEB开发中经常需要对页面进行分页，jQuery插件JQuery Pager分页器能轻松实现javascript分页功能，只需要几行代码，就可以轻松搞定，实例效果图如下：

简单明了，下面我介绍一下实现过程：

      首先需要使用jQuery库文件和JQuery Pager库文件，请点击下载。

      分页样式page.css会在你下载的jQuery库文件里面，当然你可以选择拷贝下面，或者自己做修改 

#pager ul.pages {
display:block;
border:none;
text-transform:uppercase;
font-size:10px;
margin:10px 0 50px;
padding:0;
}

#pager ul.pages li {
list-style:none;
float:left;
border:1px solid #ccc;
text-decoration:none;
margin:0 5px 0 0;
padding:5px;
}

#pager ul.pages li:hover {
border:1px solid #003f7e;
}

#pager ul.pages li.pgEmpty {
border:1px solid #eee;
color:#eee;
}

#pager ul.pages li.pgCurrent {
border:1px solid #003f7e;
color:#000;
font-weight:700;
background-color:#eee;
}

接下来，我们来看看jQuery实现代码段：

<script type="text/javascript" language="javascript">
            var page=document.getElementById("hPage").value;
            var count=document.getElementById("hCount").value;
            $(document).ready(function() {
            $("#pager").pager({ pagenumber: page, pagecount: count, buttonClickCallback: PageClick });});
            PageClick = function(pageclickednumber)    
            {
                window.location.href="jQuery_Page.aspx?page="+pageclickednumber;
            }
</script>

下面则是html页面代码

<form runat="server">
<h1 id="result">jQuery分页器</h1>
    <asp:Repeater ID="Repeater1" runat="server">
                <HeaderTemplate>
                <table width="100%" border="1" cellspacing="0" cellpadding="4" style="border-collapse:collapse">
                <tr style="backGround-color:#CCCCFF"><th style="width:15%">IP编号</th><th style="width:15%">IP开始段</th><th style="width:30%">IP结束段</th><th style="width:20%">归属地</th><th style="width:20%">操作</th></tr>
                </HeaderTemplate>
                <ItemTemplate>
                <tr style="background-color:#FAF3DC">
                <td><%# Eval("IPid")%></td>
                <td><%# Eval("IPFrom")%></td>
                <td><%# Eval("IPTo")%></td>
                <td><%# Eval("IPLocation")%></td>
                <td></td>
                </tr>
                </ItemTemplate>
                <AlternatingItemTemplate>
                <tr style="background-color:#eaeaea">
                <td><%# Eval("IPid")%></td>
                <td><%# Eval("IPFrom")%></td>
                <td><%# Eval("IPTo")%></td>
                <td><%# Eval("IPLocation")%></td>
                <td></td>
                </tr>
                </AlternatingItemTemplate>
                <FooterTemplate>
                </table>
                </FooterTemplate>
                </asp:Repeater>
                <br />
<div id="pager" ></div>
    
</form>

当然这里要注意的是 <div id="pager" ></div>，它就是jQuery的分页控件，如果大家对他的样式不满意可以自行修改。下面我们来看看C#实现代码：

public partial class Page_jQuery_Page : System.Web.UI.Page
{
        public int count;//数据条数
        public int page = 1;//当前页
        public int pagecount = 5;//每页显示数据条数
        protected void Page_Load(object sender, EventArgs e)
        {
                if (!IsPostBack)
                {
                        count = IPDAO.getCount();
                        Bind();
                }
        }
        public void Bind()
        {
                if (Request.QueryString["page"] == null)
                {
                        page = 1;
                }
                else
                {
                        page = int.Parse(Request.QueryString["page"]);
                }
                int startIndex = page * pagecount + 1;
                int endIndex = startIndex + pagecount - 1;
                DataTable dt = IPDAO.getPageDatatable(startIndex, endIndex);
                this.Repeater1.DataSource = dt.DefaultView;
                this.Repeater1.DataBind();
        }
}

 这里我没有将读数据库的代码放在这里，我想这个也是极其简单的，这里就不贴出来了，下面我将分页存储过程贴一下：

ALTER PROCEDURE [dbo].[P_GetPagedOrders2005]
(@startIndex INT,    
@endindex INT
)
AS
select * from (SELECT ROW_NUMBER() OVER(ORDER BY IPid DESC) AS rownum,
[IPid],[IPFrom],[IPTo],[IPLocation],[IPCity],[IPToNumber],[IPFromNumber] from IPInfo) as U
WHERE rownum between @startIndex and @endIndex

这就是用ROW_NUMBER写的存储过程，简单吧，当然要注意需要传的两个参数：

int startIndex = page * pagecount + 1;
int endIndex = startIndex + pagecount - 1;

开始索引，结束索引，OK了！