热搜：编程 Python Microsoft 编程语言 C++

gridview自动排序示例分享

发布时间：2023-02-27 13:55:37 来源：网络

.

如玉的白玫瑰冰雪纯洁，闪烁着月光般寒冷的色彩玫瑰乱舞，勾勒出你的身形，你的容貌。想看日出，想看日落，想看世间每一处角落。

示例如下：前台


<%@ 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>无标题页</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>

前台注意点：
需要对GridView启用AllowSorting、设置OnSorting事件，对需要排序的列设定SortExpression属性。

后台


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)
 {
 // 设定初始排序参数值
 // 错误的属性设置方法：SortExpression、SortDirection均是GridView只读属性，无法直接赋值。
 //this.GridView1.SortExpression = "id";
 //this.GridView1.SortDirection = "ASC";
 // 正确的属性设置方法
 this.GridView1.Attributes.Add("SortExpression", "id");
 this.GridView1.Attributes.Add("SortDirection", "ASC");
 // 绑定数据源到GridView
 this.BindGridView();
 }
 }
 /// <summary>
 /// GridView排序事件
 /// </summary>
 protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
 {
 // 从事件参数获取排序数据列
 string sortExpression = e.SortExpression.ToString();
 // 假定为排序方向为“顺序”
 string sortDirection = "ASC";
 // “ASC”与事件参数获取到的排序方向进行比较，进行GridView排序方向参数的修改
 if (sortExpression == this.GridView1.Attributes["SortExpression"])
 {
 //获得下一次的排序状态
 sortDirection = (this.GridView1.Attributes["SortDirection"].ToString() == sortDirection ? "DESC" : "ASC");
 }
 // 重新设定GridView排序数据列及排序方向
 this.GridView1.Attributes["SortExpression"] = sortExpression;
 this.GridView1.Attributes["SortDirection"] = sortDirection;
 this.BindGridView();
 }
 /// <summary>
 /// 绑定到GridView
 /// </summary>
 private void BindGridView()
 {
 // 获取GridView排序数据列及排序方向
 string sortExpression = this.GridView1.Attributes["SortExpression"];
 string sortDirection = this.GridView1.Attributes["SortDirection"];
 // 调用业务数据获取方法
 DataTable dtBind = this.getDB();
 // 根据GridView排序数据列及排序方向设置显示的默认数据视图
 if ((!string.IsNullOrEmpty(sortExpression)) && (!string.IsNullOrEmpty(sortDirection)))
 {
 dtBind.DefaultView.Sort = string.Format("{0} {1}", sortExpression, sortDirection);
 }
 // GridView绑定并显示数据
 this.GridView1.DataSource = dtBind;
 this.GridView1.DataBind();
 }
 /// <summary>
 /// 获取数据源的方法
 /// </summary>
 /// <returns>数据源</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;
 }
}