ExtJS+Handler入门显示
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<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._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></title>
<link href="extjs3/resources/css/ext-all.css" rel="stylesheet" />
<script src="extjs3/adapter/ext/ext-base.js"></script>
<script src="extjs3/ext-all.js"></script>
<script>
Ext.onReady(function () {
var sm = new Ext.grid.CheckboxSelectionModel();
var cm = new Ext.grid.ColumnModel([
new Ext.grid.RowNumberer(),
sm,
{ header: ‘编号‘, dataIndex: ‘Id‘, sortable: true },
{ header: ‘名称‘, dataIndex: ‘Name‘ },
{ header: ‘描述‘, dataIndex: ‘descn‘ },
{
header: ‘日期‘, dataIndex: ‘Time‘, type: ‘date‘
},
{ header: ‘性别‘, dataIndex: ‘sex‘, renderer:function(value){
if (value == "男") {
return "<span style=‘color:red;font-weight:bold;‘>红男</span >";
} else {
return "<span style=‘color:green;font-weight:bold;‘>女</span >";
}
} }
]);//创建列
//var data = [
// [‘1‘, ‘name1‘, ‘descn1‘,‘1970-01-12T02:58:04‘,‘男‘],
// [‘2‘, ‘name2‘, ‘descn2‘, ‘1970-01-12T02:58:04‘, ‘男‘],
// [‘3‘, ‘name3‘, ‘descn3‘, ‘1970-01-12T02:58:04‘, ‘男‘],
// [‘1‘, ‘name1‘, ‘descn1‘, ‘1970-01-12T02:58:04‘, ‘男‘],
// [‘2‘, ‘name2‘, ‘descn2‘, ‘1970-01-12T02:58:04‘, ‘男‘],
// [‘3‘, ‘name3‘, ‘descn3‘, ‘1970-01-12T02:58:04‘, ‘男‘],
// [‘1‘, ‘name1‘, ‘descn1‘, ‘1970-01-12T02:58:04‘, ‘男‘],
// [‘2‘, ‘name2‘, ‘descn2‘, ‘1970-01-12T02:58:04‘, ‘男‘],
// [‘1‘, ‘name1‘, ‘descn1‘, ‘1999-01-12T02:58:04‘, ‘女‘],
// [‘2‘, ‘name2‘, ‘descn2‘, ‘1999-01-12T02:58:04‘, ‘女‘],
// [‘3‘, ‘name3‘, ‘descn3‘, ‘1999-01-12T02:58:04‘, ‘女‘],
// [‘1‘, ‘name1‘, ‘descn1‘, ‘1999-01-12T02:58:04‘, ‘女‘],
// [‘2‘, ‘name2‘, ‘descn2‘, ‘1999-01-12T02:58:04‘, ‘女‘],
// [‘3‘, ‘name3‘, ‘descn3‘, ‘1999-01-12T02:58:04‘, ‘女‘],
// [‘1‘, ‘name1‘, ‘descn1‘, ‘1999-01-12T02:58:04‘, ‘女‘],
// [‘2‘, ‘name2‘, ‘descn2‘, ‘1999-01-12T02:58:04‘, ‘女‘],
//]
var store = new Ext.data.Store({
proxy: new Ext.data.HttpProxy({
url: ‘Handler3.ashx‘,
type: ‘ajax‘,
getMethod: function () { return ‘POST‘; },
reader: {
type: ‘json‘,
}
}),
reader:new Ext.data.JsonReader({},[
{name:‘Id‘},
{name:‘Name‘},
{ name: ‘descn‘ },
{ name: ‘Time‘ },
{ name: ‘sex‘ },
])
})
store.load();
var grid = new Ext.grid.GridPanel({
renderTo: ‘test‘,
store: store,
height: 200,
sm:new Ext.grid.RowSelectionModel({singleSelet:true}),
stripeRows: true,
loadMask:true,
cm: cm,
viewConfig: {
columnsText: ‘显示的列‘,
sortAscText: ‘降序‘,
sortDescText: ‘升序‘,
scrollOffset:50,
forceFit:true
},
bbar: new Ext.PagingToolbar({
pageSize: 5,
store: store,
displayInfo: true,
displayMsg: ‘显示第{0}条到第{1}条的记录，一共{2}条‘,
emptyMsg:"没有记录"
}),
});
store.load();
Ext.get(‘remove‘).on(‘click‘, function () {
store.remove(store.getAt(1));
grid.view.refresh();
})
grid.on(‘click‘, function () {
var selection = grid.getSelectionModel().getSelections();//获取行集合
for (var i = 0; i < selection.length; i++)
{
var record = selection[i];
Ext.Msg.alert(‘提示‘, record.get("Id") + "," + record.get(‘Name‘) + "," + record.get("descn"));
}
})
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<div id="test"></div>
<input id="remove" type="button" value="删除" />
<input id="addbtn" type="button" value="添加"/>
</div>
</form>
</body>
</html>
后台代码：
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
List<student> list = new List<student>();
for (int i = 0; i < 100; i++)
{
student stu = new student();
stu.Id = i++;
stu.Name = "name" + i++;
stu.descn = "朝阳" + i + "区";
stu.Time = DateTime.Now.ToString();
if (i % 2 == 0)
{
stu.sex = "男";
}
else
{
stu.sex = "女";
}
list.Add(stu);
}
string JSON = Newtonsoft.Json.JsonConvert.SerializeObject(list);
context.Response.Write(JSON);
}
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