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asp.net GridView排序简单实现

2012-12-05 13:26 393 查看

前台：

代码

代码如下:

<%@ 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 runat="server">

<title>GridView排序简单实现</title>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:GridView ID="gdvSort" runat="server" OnSorting="gdvSort_Sorting">

</asp:GridView>

</div>

</form>

</body>

</html>

后台：

代码

复制代码代码如下:

using System;

using System.Data;

using System.Configuration;

using System.Collections;

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 GridViewSort : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

ViewState["SortOrder"] = "PID";

ViewState["OrderDire"] = "Desc";

Bind();

}

}

private void Bind()

{

gdvSort.AllowSorting = true;

DataView dv = getDt().DefaultView;

dv.Sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];

gdvSort.DataSource = dv;

gdvSort.DataBind();

}

/// <summary>

/// 连数据库麻烦，直接构造一个DataTable

/// </summary>

/// <returns></returns>

private DataTable getDt()

{

DataTable dt = new DataTable();

dt.Columns.Add("PID", typeof(System.Int32));

dt.Columns.Add("UserName", typeof(System.String));

for (int i = 0; i < 10; i++)

{

DataRow dr = dt.NewRow();

dr["PID"] = i;

dr["UserName"] = "姓名" + i;

dt.Rows.Add(dr);

}

return dt;

}

protected void gdvSort_Sorting(object sender, GridViewSortEventArgs e)

{

string sPage = e.SortExpression;

if (ViewState["SortOrder"].ToString() == sPage)

{

if (ViewState["OrderDire"].ToString() == "Desc")

{

ViewState["OrderDire"] = "Asc";

}

else

{

ViewState["OrderDire"] = "Desc";

}

}

else

ViewState["SortOrder"] = e.SortExpression;

Bind();

}

}

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