GridView自帶了數據排序功能。在設計視圖下，只能對GridView的排序數據列和排序方向進行靜態設置。如果要自己實現排序功能，在後臺程序中，則需要用Attributes方式對GridView的這兩個屬性進行動態設置。
示例如下：
（前臺） 
<%
@
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>無標題頁</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>
前臺注意點：
需要對GridView啓用AllowSorting、設置OnSorting事件，對需要排序的列設定SortExpression屬性。
（後臺）
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)
{
// 設定初始排序參數值
// 錯誤的屬性設置方法：SortExpression、SortDirection均是GridView只讀屬性，無法直接賦值。
//this.GridView1.SortExpression = "id";
//this.GridView1.SortDirection = "ASC";
// 正確的屬性設置方法
this.GridView1.Attributes.Add("SortExpression", "id");
this.GridView1.Attributes.Add("SortDirection", "ASC");
// 綁定數據源到GridView
this.BindGridView();
}
}
/// <summary>
/// GridView排序事件
/// </summary>
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
// 從事件參數獲取排序數據列
string sortExpression = e.SortExpression.ToString();
// 假定爲排序方向爲“順序”
string sortDirection = "ASC";
// “ASC”與事件參數獲取到的排序方向進行比較，進行GridView排序方向參數的修改
if (sortExpression == this.GridView1.Attributes["SortExpression"])
{
//獲得下一次的排序狀態
sortDirection = (this.GridView1.Attributes["SortDirection"].ToString() == sortDirection ? "DESC" : "ASC");
}
// 重新設定GridView排序數據列及排序方向
this.GridView1.Attributes["SortExpression"] = sortExpression;
this.GridView1.Attributes["SortDirection"] = sortDirection;
this.BindGridView();
}
/// <summary>
/// 綁定到GridView
/// </summary>
private void BindGridView()
{
// 獲取GridView排序數據列及排序方向
string sortExpression = this.GridView1.Attributes["SortExpression"];
string sortDirection = this.GridView1.Attributes["SortDirection"];
// 調用業務數據獲取方法
DataTable dtBind = this.getDB();
// 根據GridView排序數據列及排序方向設置顯示的默認數據視圖
if ((!string.IsNullOrEmpty(sortExpression)) && (!string.IsNullOrEmpty(sortDirection)))
{
dtBind.DefaultView.Sort = string.Format("{0} {1}", sortExpression, sortDirection);
}
// GridView綁定並顯示數據
this.GridView1.DataSource = dtBind;
this.GridView1.DataBind();
}
/// <summary>
/// 獲取數據源的方法
/// </summary>
/// <returns>數據源</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;
}
}
原文轉載自http://www.360doc.com/content/15/0106/17/21392682_438677308.shtml