gridview自動並べ替えの例を共有する


例は以下の通りです。フロント

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!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 runat="server">
    <title> </title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4" ForeColor="#333333" GridLines="None" AllowSorting="True" OnSorting="GridView1_Sorting">
            <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
            <RowStyle BackColor="#EFF3FB" />
            <Columns>
                <asp:BoundField DataField="id" HeaderText="ID" SortExpression="id" />
                <asp:BoundField DataField="name" HeaderText="NAME" SortExpression="name" />
                <asp:BoundField DataField="age" HeaderText="AGE" SortExpression="age" />
            </Columns>
            <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
            <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
            <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
            <EditRowStyle BackColor="#2461BF" />
            <AlternatingRowStyle BackColor="White" />
        </asp:GridView>
    </div>
    </form>
</body>
</html>

フロントの注意点:GridViewに対してAllowSortingを有効にし、OSortingイベントを設定し、並べ替えが必要な列に対してSortExpression属性を設定する必要があります。
楽屋

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;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            //

            // :SortExpression、SortDirection GridView , 。
            //this.GridView1.SortExpression = "id";
            //this.GridView1.SortDirection = "ASC";

            //
            this.GridView1.Attributes.Add("SortExpression", "id");
            this.GridView1.Attributes.Add("SortDirection", "ASC");

            // GridView
            this.BindGridView();
        }
    }

    /// <summary>
    /// GridView
    /// </summary>
    protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
    {
        //
        string sortExpression = e.SortExpression.ToString();

        // “ ”
        string sortDirection = "ASC";

        // “ASC” , GridView
        if (sortExpression == this.GridView1.Attributes["SortExpression"])
        {
            //
            sortDirection = (this.GridView1.Attributes["SortDirection"].ToString() == sortDirection ? "DESC" : "ASC");
        }

        // GridView
        this.GridView1.Attributes["SortExpression"] = sortExpression;
        this.GridView1.Attributes["SortDirection"] = sortDirection;

        this.BindGridView();
    }

    /// <summary>
    /// GridView
    /// </summary>
    private void BindGridView()
    {
        // GridView
        string sortExpression = this.GridView1.Attributes["SortExpression"];
        string sortDirection = this.GridView1.Attributes["SortDirection"];

        //
        DataTable dtBind = this.getDB();

        // GridView
        if ((!string.IsNullOrEmpty(sortExpression)) && (!string.IsNullOrEmpty(sortDirection)))
        {
            dtBind.DefaultView.Sort = string.Format("{0} {1}", sortExpression, sortDirection);
        }

        // GridView
        this.GridView1.DataSource = dtBind;
        this.GridView1.DataBind();
    }

    /// <summary>
    ///
    /// </summary>
    /// <returns> </returns>
    private DataTable getDB()
    {
        DataTable dt = new DataTable();

        dt.Columns.Add("id");
        dt.Columns.Add("name");
        dt.Columns.Add("age");

        dt.Rows.Add(new object[] { "000001", "hekui", "26" });
        dt.Rows.Add(new object[] { "000002", "zhangyu", "26" });
        dt.Rows.Add(new object[] { "000003", "zhukundian", "27" });
        dt.Rows.Add(new object[] { "000004", "liyang", "25" });
        dt.Rows.Add(new object[] { "000005", "caili", "27" });

        return dt;
    }
}