GridView

//////////////////////.aspx代码//////////////////////// 



<div>

        <asp:GridView ID="gv_pro" runat="server" AllowPaging="true" PageSize="10" PagerSettings-Mode="Numeric" AllowSorting="true" Font-Size="12px" Width="760" AutoGenerateColumns="false" CellPadding="4" OnPageIndexChanging="gv_pro_PageIndexChanging" OnSorting="gv_pro_Sorting"

>

        <HeaderStyle BackColor="#006699" ForeColor="#ffffff" />

           <Columns>

           <asp:BoundField DataField="pro_name" HeaderText="产品名称" ItemStyle-Height="22" ItemStyle-Width="300" SortExpression="pro_name" />

           <asp:BoundField DataField="pro_jianjie" HeaderText="产品简介" ItemStyle-Width="200" SortExpression="pro_jianjie"/>

           <asp:BoundField DataField="pro_date" HeaderText="添加时间" SortExpression="pro_date"/>

           </Columns>

        

        </asp:GridView>

    </div>



//////////////.cs代码////////////////////////////////



using System;

using System.Data;

using System.Configuration;

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.SqlClient;



public partial class _Default : System.Web.UI.Page 

{

    /// <summary>

    /// 绑定到GridView

    /// </summary>

    private void bingclass()

    {

        //实例化sqlconnection对象

        SqlConnection conn = new SqlConnection();

        //从webconfig中取得数据库连接字符串

        conn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["yfmy"].ConnectionString;

        //实例化sqlcommand对象

        SqlCommand cmd = new SqlCommand();

        //设置查询语句

        cmd.CommandText = "select pro_name,pro_jianjie,pro_date from yf_pro";

        //给cmd对象建立数据库的连接

        cmd.Connection = conn;

        //打开链接到的数据库

        conn.Open();

        //实例化sqldataadapter

        SqlDataAdapter sda = new SqlDataAdapter();

        //设置sqldataAdapter的查询语句

        sda.SelectCommand = cmd;

        //实例化dataset

        DataSet ds = new DataSet("pro");

        //将结果填充到dataset中

        sda.Fill(ds);

        //关闭数据库连接

        conn.Close();

        //实例化datatable

        DataTable dt = new DataTable();

        //取得内存中的数据集

        dt = ds.Tables[0];

        //取得排序的字段

        string sortExpression = this.gv_pro.Attributes["SortExpression"];

        //取得排序的顺序

        string sortDirection = this.gv_pro.Attributes["SortDirection"];

        //判断如果排序的字段和顺序都不为空

        if ((!string.IsNullOrEmpty(sortExpression)) && (!string.IsNullOrEmpty(sortDirection)))

        {

           //设置视图中的排序的字段以及排序的顺序

            dt.DefaultView.Sort = string.Format("{0} {1}", sortExpression, sortDirection);

        }

        //设置gridview的数据源

        this.gv_pro.DataSource = dt.DefaultView;

        //绑定

        this.gv_pro.DataBind();

    }

    protected void Page_Load(object sender, EventArgs e)

    {

        //如果不是回传的话

        if (!IsPostBack)

        {

            //设定gridview的初始排序字段以及顺序

            this.gv_pro.Attributes.Add("SortExpression", "pro_date");

            this.gv_pro.Attributes.Add("SortDirection", "ASC");

            //绑定

            bingclass();

        }

    }

    protected void gv_pro_PageIndexChanging(object sender, GridViewPageEventArgs e)

    {

        //获取当前是第几页

        this.gv_pro.PageIndex = e.NewPageIndex;

        //重新绑定

        bingclass();

    }

    protected void gv_pro_Sorting(object sender, GridViewSortEventArgs e)

    {

        //获得当前点击的列

        string sortExpression = e.SortExpression.ToString();

        string sortDirection = "ASC";

        if (sortExpression == this.gv_pro.Attributes["SortExpression"])

        {

            //获得下一次的排序状态

            sortDirection = (this.gv_pro.Attributes["SortDirection"].ToString() == sortDirection ? "DESC" : "ASC");

        }

        // 重新设定GridView排序数据列及排序方向

        this.gv_pro.Attributes["SortExpression"] = sortExpression;

        this.gv_pro.Attributes["SortDirection"] = sortDirection;

        //重新绑定

        bingclass();





    }

}