<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<ul>
<asp:Repeater ID="Repeater1" runat="server">
<ItemTemplate>
<li>
<p>
<span><%#Eval("username") %>：</span><%#Eval("content").ToString())) %></p>
<p>
<em>发表时间：
<%#Eval("addtime") %>
</em>
</p>
</li>
</ItemTemplate>
</asp:Repeater>
</ul>
<p>
总记录：<asp:Literal ID="ltlCount" runat="server"></asp:Literal></p>
<p>
<webdiyer:AspNetPager ID="AspNetPager1" runat="server" AlwaysShow="true" PageIndexBoxType="DropDownList" >
</webdiyer:AspNetPager>
</p>
</div>
</ContentTemplate>
|
3、AspNetPager分页控件
可以看到以上的代码有个分页控件，我相信这个分页控件大家都不陌生了，我就不多介绍。必须有AspNetPager.dll，然后在项目中引用，在头部引入这一段代码：
?<%@ Register Assembly="AspNetPager" Namespace="Wuqi.Webdiyer" TagPrefix="webdiyer" %>
这时候分页控件应该就可以使用了。最后在后台绑定一下数据，同时也要绑定AspNetPager控件，完整的后台代码如下：
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using Wuqi.Webdiyer;
using System.Data.SqlClient;
public partial class AjaxPager : System.Web.UI.Page
{
int currentPageNumber;//当前页号
int pageSize = 5;//每页显示记录条数
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
currentPageNumber = 1;
ViewState["currentPageNumber"] = currentPageNumber;
BindData();
}
AspNetPager1.PageChanged += new EventHandler(AspNetPager1_PageChanged); //定义控件分页事件
}
//获取记录总数
private int GetCount()
{
string sql = "select COUNT(*) from T_Test";
DataTable dt = GetTable(sql, CommandType.Text, values);
if (dt.Rows.Count > 0)
{
return Convert.ToInt32(dt.Rows[0][0]);
}
else
{
return 0;
}
}
//绑定数据
private void BindData()
{
ltlCount.Text = GetCount().ToString();
currentPageNumber = Convert.ToInt32(ViewState["currentPageNumber"]);
SqlParameter[] values = { new SqlParameter("@PageNumber", currentPageNumber), new SqlParameter("@PageSize", pageSize) };
DataTable dt = GetTable("P_Pager", CommandType.StoredProcedure, values); //调用存储过程
if (dt.Rows.Count > 0)
{
AspNetPager1.PageSize = pageSize;
AspNetPager1.RecordCount = GetCount();
AspNetPager1.CurrentPageIndex = currentPageNumber;
this.Repeater1.DataSource = dt.DefaultView;
this.Repeater1.DataBind();
}
}
//分页事件
void AspNetPager1_PageChanged(object sender, EventArgs e)
{
currentPageNumber = AspNetPager1.CurrentPageIndex;
ViewState["currentPageNumber"] = currentPageNumber;
BindData();
}
// 读取存储过程返回table
private DataTable GetTable(string sql, CommandType t, params SqlParameter[] values)
{
using (SqlConnection conn = new SqlConnection("Data Source=127.0.0.1;Initial Catalog=testDB;Persist Security Info=True;User ID=sa;Password=123456"))
{
SqlCommand comm = new SqlCommand(sql, conn);
comm.CommandType = t;
if (values != null && values.Length > 0)
comm.Parameters.AddRange(values);
SqlDataAdapter da = new SqlDataAdapter(comm);
DataSet ds = new DataSet();
try
{
conn.Open();
da.Fill(ds);
return ds.Tables[0];
}
catch (Exception)
{
return null;
}
finally
{
conn.Close();
conn.Dispose();
}
}
}
}
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