asp.net GridView排序简单实现
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2024-03-08 15:28:58
前台： 代码 复制代码 代码如下: <%@ page language="c#" autoeventwireup="true" codefile="gridviews...
前台：
代码
<%@ 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
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();
}
}
代码
复制代码 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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