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  • GridView实现自动排序带上下箭头

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridViewSort.aspx.cs" Inherits="GridViewSort" %>
    
    <!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 id="Head1" runat="server">
        <title>GridView排序</title>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
            <asp:ScriptManager ID="ScriptManager1" runat="server">
            </asp:ScriptManager>
            <asp:UpdatePanel ID="UpdatePanel1" runat="server">
                <ContentTemplate>
                    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
                        ForeColor="#333333" GridLines="None" AllowSorting="True" OnRowCreated="GridView1_RowCreated"
                        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>
                </ContentTemplate>
            </asp:UpdatePanel>
        </div>
        </form>
    </body>
    </html>
    

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Data;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    public partial class GridViewSort : System.Web.UI.Page
    {
        #region 私有变量
        protected string JS = "";
        string SortExpression = "";//排序表达式
        string SortDirection = "";//排序方向
        #endregion
    
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindGridView();
            }
        }
    
        #region 事件
        /// <summary>
        /// 生成排序列旁边的小箭头
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.Header)
            {
                foreach (TableCell tc in e.Row.Cells)
                {
                    if (tc.Controls.Count > 0)//这里要判断一下此时是不是已经生成了linkbutton
                    {
                        string s1 = ((LinkButton)tc.Controls[0]).Text;
                        ((LinkButton)tc.Controls[0]).Text = s1.Replace(s1, s1 + "<font face='Webdings'>5</font>");
                    }
                    if (tc.Controls.Count > 0 && tc.Controls[0].GetType().ToString() == "System.Web.UI.WebControls.DataControlLinkButton")
                    {
                        if (((LinkButton)tc.Controls[0]).CommandArgument == SortExpression)
                        {
                            string s2 = ((LinkButton)tc.Controls[0]).Text;
                            if (SortDirection == "DESC")
                            {
                                ((LinkButton)tc.Controls[0]).Text = s2.Replace("5", "6");
                            }
                        }
                    }
                }
            }
        }
        /// <summary>
        /// 排序方法
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
        {
            //得到排序条件
            SortExpression = e.SortExpression.ToString();
            //设置排序为升序
            SortDirection = "ASC";
            //当前排序为升序时,修改成降序
            if (this.GridView1.Attributes["SortDirection"] == "ASC")
            {
                SortDirection = "DESC";
            }
            //设置GridView的排序状态
            this.GridView1.Attributes["SortExpression"] = SortExpression;
            this.GridView1.Attributes["SortDirection"] = SortDirection;
            BindGridView();
        }
        #endregion
    
        #region 私有方法
        /// <summary>
        /// 根据排序条件重新绑定GridView
        /// </summary>
        private void BindGridView()
        {
            string sortExpression = this.GridView1.Attributes["SortExpression"];
            string sortDirection = this.GridView1.Attributes["SortDirection"];
            DataTable dt = getDB();
            if ((!string.IsNullOrEmpty(sortExpression)) && (!string.IsNullOrEmpty(sortDirection)))
            {
                dt.DefaultView.Sort = string.Format("{0} {1}", sortExpression, sortDirection);
            }
            this.GridView1.DataSource = dt;
            this.GridView1.DataBind();
        }
        #endregion
    
        /// <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;
        }
    }

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  • 原文地址:https://www.cnblogs.com/smartsmile/p/6234357.html
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