做了一个网站，其中的在线留言板块是用Repeater来显示留言的，这样可以用少的代码还实现多的功能，但是不知道怎么分页，要是留言过多就会使页面变的很长，能过查看众多网友的经验，知道用PagedDataSource来实现。
Repeater分页，需要依靠PagedDataSource。这个类存在于System.Web.UI.WebControls命名空间。它的作用是作为数据源与数据显示控件的中间介质。如：
数据源－>PagedDataSource－>数据绑定控件
之间的关系通过以下代码来实现：
PagedDataSource pds=new PagedDataSource ();
pds.DataSource=dataTable;
repeater1.DataSource=pds;
repeater1.DataBind();
这是前台aspx页代码
<div id="onlinely">
<div id="xianshily">
<asp:Repeater runat="server" ID="Repeater1">
<ItemTemplate>
<ul id="xianshi1">
<li id="xianshi2">
<ul class="ly1">
<li class="ly2">留言人：</li>
<li class="ly3"><asp:Label runat="server" ID="lyren" Text='<%#Eval("lyname") %>'></asp:Label></li>
<li class="ly4">时间:</li>
</ul>
<ul class="ly1">
<li class="ly2">留言内容：</li>
<li class="ly3"><asp:Label runat="server" ID="lynr" Text='<%#Eval("neirong") %>'></asp:Label></li>
<li class="ly4"><asp:Label runat="server" ID="lyt" Text='<%#Eval("lytime") %>'></asp:Label></li>
</ul>
<ul class="ly1">
<li class="ly2">回复：</li>
<li class="ly3"><asp:Label runat="server" ID="lyhf" Text='<%#Eval("huifu") %>'></asp:Label></li>
<li class="ly4"><asp:Label runat="server" ID="hft" Text='<%#Eval ("hftime") %>'></asp:Label></li>
</ul>
</li></ul>
</ItemTemplate>
</asp:Repeater>
</div>
<div id="pages">
<asp:hyperlink id="lnkPrev" runat="server">上页</asp:hyperlink>
<asp:hyperlink id="lnkNext" runat="server">下页</asp:hyperlink>
第<asp:label id="lblCurrentPage" runat="server"></asp:label>页
共 <asp:label id="lblTotalPage" runat="server"></asp:label>页
</div>
<div id="ly">
<ul>
<li>
<ul class="ly5">
<li class="ly6">姓名：</li>
<li class="ly7"><asp:TextBox runat="server" ID="lyname"></asp:TextBox></li>
</ul>
<ul class="ly5">
<li class="ly6">留言内容：</li>
<li class="ly7"><asp:TextBox runat="server" ID="lyneirong" TextMode="MultiLine" Wrap="true" Height="100px" Width="300px"></asp:TextBox></li>
</ul>
</li>
</ul>
<div id="tijiao">
<ul>
<li><asp:Button runat="server" ID="Button1" Text="提交" onclick="tijiao_Click" /></li>
<li><asp:Button runat="server" ID="quxiao" Text="取消" onclick="quxiao_Click" /></li>
</ul>
</div>
</div>
</div>这是aspx.cs页代码：
using System;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.Common;
public partial class onlinely : System.Web.UI.Page
{
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["zgbygy"].ConnectionString);
protected void Page_Load(object sender, EventArgs e)
{
conn.Open();
string sql = "select * from liuyan order by lytime desc";
SqlCommand cmd = new SqlCommand(sql, conn);
SqlDataAdapter sda = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
sda.Fill(ds);
PagedDataSource pgds=new PagedDataSource();
pgds.DataSource = ds.Tables[].DefaultView;
// 设置允许分页
pgds.AllowPaging = true;
// 每页显示为8行
pgds.PageSize = ;
// 显示总共页数
lblTotalPage.Text = pgds.PageCount.ToString();
// 当前页
int CurrentPage;
// 请求页码为不为null设置当前页，否则为第一页
if (Request.QueryString["Page"] != null)
{
CurrentPage = Convert.ToInt32(Request.QueryString["Page"]);
}
else
{
CurrentPage = ;
}
// 当前页所引为页码-1
pgds.CurrentPageIndex = CurrentPage - ;
// 显示当前页码
lblCurrentPage.Text = CurrentPage.ToString();
// 如果不是第一页，通过参数Page设置上一页为当前页-1，否则不显示连接
if (!pgds.IsFirstPage)
{
// Request.CurrentExecutionFilePath为当前请求虚拟路径
lnkPrev.NavigateUrl = Request.CurrentExecutionFilePath + );
}
// End If
// 如果不是最后一页，通过参数Page设置下一页为当前页+1，否则不显示连接
if (!pgds.IsLastPage)
{
// Request.CurrentExecutionFilePath为当前请求虚拟路径
lnkNext.NavigateUrl = Request.CurrentExecutionFilePath + );
}
Repeater1.DataSource =pgds;
Repeater1.DataBind();
cmd.Dispose();
conn.Close();
}
protected void tijiao_Click(object sender, EventArgs e)
{
try
{
conn.Open();
string sql = "insert into liuyan (lyname,neirong,lytime) values ('" +lyname.Text +"','" +lyneirong.Text + "','" + DateTime.Now + "')";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.ExecuteNonQuery();
conn.Close();
this.lyname.Text = "";
this.lyneirong.Text = "";
Response.Redirect("onlinely.aspx");
}
catch
{
}
}
protected void quxiao_Click(object sender, EventArgs e)
{
this.lyname.Text = "";
this.lyneirong.Text = "";
}
public void xinashi(object sender, EventArgs e)
{
conn.Open();
string sql = "select * from liuyan";
SqlCommand cmd = new SqlCommand(sql, conn);
SqlDataAdapter sda = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
sda.Fill(ds);
Repeater1.DataSource = ds;
Repeater1.DataBind();
cmd.Dispose();
conn.Close();
}
}