要先设置GridView的AllowSortring=true,这样当点击列标题的时候才能激发GridView的Sorting事件进行排序
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using System;
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using System.Data;
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using System.Configuration;
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using System.Collections;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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using System.Collections.Generic;
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public partial class GridViewSortingTest : System.Web.UI.Page
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{
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protected void Page_Load(object sender, EventArgs e)
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{
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if (!IsPostBack)
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{
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ClientInfoAccessObj accessor = new ClientInfoAccessObj();
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GridView1.DataSource = accessor.GetAllClients();//绑定所有客户信息
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GridView1.DataBind();
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}
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}
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//按照客户姓名进行排序比较
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public int CompareByClientName(ClientInfo Client1, ClientInfo Client2)
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{
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return Client1.ClientName.CompareTo(Client2.ClientName);
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}
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//按照邮编和地址进行排序比较
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public int CompareByPostCodeAndAddressStr(ClientInfo client1, ClientInfo client2)
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{
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int ret = client1.PostCode.CompareTo(client2.PostCode);
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if (ret != 0)
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return ret;
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else//如果邮编一样
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{
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return client1.AddressStr.CompareTo(client2.AddressStr);
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}
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}
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//按照邮编进行排序比较
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public int CompareByPostCode(ClientInfo client1, ClientInfo client2)
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{
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return client1.PostCode.CompareTo(client2.PostCode);
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}
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//正在排序的事件
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protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
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{
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ClientInfoAccessObj accessor = new ClientInfoAccessObj();
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List<ClientInfo> clients = accessor.GetAllClients();
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switch (e.SortExpression)
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{
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case "ClientName":
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clients.Sort(CompareByClientName);//参数是一个Comparison<T>类型的泛型委托的函数名
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break;
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case "MultiColumnSort":
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clients.Sort(CompareByPostCodeAndAddressStr);
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break;
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case "PostCode":
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clients.Sort(CompareByPostCode);
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break;
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default:
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ClientScript.RegisterClientScriptBlock(this.GetType(), "InfoMsg", "alert('不支持对此字段进行排序');", true);
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break;
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}
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GridView1.DataSource = clients;//绑定显示数据
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GridView1.DataBind();
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}
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protected void btnSortByName_Click(object sender, EventArgs e)
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{
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GridView1.Sort("ClientName", SortDirection.Ascending);//此事件执行完毕再执行Sorting事件
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}
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protected void btnSortByPostCodeAndAddress_Click(object sender, EventArgs e)
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{
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GridView1.Sort("MultiColumnSort", SortDirection.Ascending);
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}
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}
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