求一EXTJS 的grid控件绑定后台dt简单例子

[长江]

自己摸了两天还是没搞出来。
求一例子：
用VS2010的MVC建的项目，EXTJS 4.0 中的GRID控件从后台DataTable中取数据

例子最好简单点两三个字段就行了!谢谢！

[csdn_aspnet]

参考：http://blog.csdn.net/linkyou/article/details/6586387

[paul_its]

var cm = new Ext.grid.ColumnModel([
new Ext.grid.RowNumberer(),
{ header: '单位代码', dataIndex: 'UnitId', sortable: true, hidden: true },
{ header: '单位代码', dataIndex: 'TypeCode', sortable: true, width: 100 },
{ header: '单位名称', dataIndex: 'UnitNAME', sortable: true, width: 110 }
]);
var store = new Ext.data.Store({
proxy: new Ext.data.HttpProxy({ url: 'UnitList.aspx?cmd=list' }),//你请求数据的路径
reader: new Ext.data.JsonReader({ totalProperty: 'totalProperty', root: 'root' },
[
{ name: 'UnitId' },
{ name: 'TypeCode' },
{ name: 'UnitNAME' }
]
),
});

var grid = new Ext.grid.GridPanel({
store: store,
cm: cm,
renderTo: Ext.getBody(),
border: false,
stripeRows: true,
loadMask: true,
frame: false,
autoHeight: true,
viewConfig: { forceFit: true },
monitorResize: true,
listeners:
{
"rowdblclick": function (grid, rowIndex, e) {
alert("行双击事件!"); }
}
});
store.load();
------------------华丽的分割线--------------------
if (Request.QueryString["cmd"].Equals("list"))
{
#region 获取数据
IList<FDNE_UNIT_Entity> list =new Unit_BLL().GetUnitList();//获取数据返回泛型集合
StringBuilder str = new StringBuilder();
str.Append("{totalProperty:" + list.Count + ",root:[");
if (list == null || list.Count == 0)
{
str.Append("]}");
Response.Write(str.ToString());
return;
}
for (int i = 0; i < list.Count; i++)
{
str.Append("{TypeCode:'" + list[i].Unitcode + "',UnitNAME:'" + list[i].Unitname + "',UnitId:'" + list[i].Unitid + "'}");
if (i < (list.Count) - 1)
str.Append(",");
}
str.Append("]}");
Response.Write(str.ToString());
Response.End();
#endregion
}

你要的是从后台DataTable中取数据，我这是从集合中取都只需循环即可。希望你懂得......

[长江]

这是原来带有的例子,数据源是url: 'http://www.sencha.com/forum/remote_topics/index.php',
可以正常显示数据，

 var store = Ext.create('Ext.data.Store', {
        id: 'store',
        pageSize: 200,
        model: 'ForumThread',
        remoteSort: true,
        // allow the grid to interact with the paging scroller by buffering
        buffered: true,
        proxy: {
            // load using script tags for cross domain, if the data in on the same domain as
            // this page, an HttpProxy would be better
            
            type: 'jsonp',
           url: 'http://www.sencha.com/forum/remote_topics/index.php',
            extraParams: {
                total: 50000
            },
            reader: {
                root: 'topics',
                totalProperty: 'totalCount'
            },
            // sends single sort as multi parameter
            simpleSortMode: true
        },
        sorters: [{
            property: 'lastpost',
            direction: 'DESC'
        }]
    }); 

但是我改成我的'Handler2.ashx'之后怎么搞都没数据出来

 url: 'Handler2.ashx',

Handler2.ashx里换了N种写法JS都没收到数据

       public void ProcessRequest(HttpContext context)
        {
           string str = "{\"totalCount\":\"1\",\"topics\":[{\"title\":\"XTemplate with in EditorGridPanel\",\"threadid\":\"133690\",\"username\":\"kpr@emco\",\"userid\":\"272497\",\"dateline\":\"1305604761\",\"postid\":\"602876\",\"forumtitle\":\"Ext 3.x: Help\",\"forumid\":\"40\",\"replycount\":\"2\",\"lastpost\":\"1305857807\",\"excerpt\":\"\"}]}";
            context.Response.Write(str);
        }

郁闷啊！！！

[长江]

[Quote=引用 2 楼 vanceinfo_zhao 的回复:]
var cm = new Ext.grid.ColumnModel([
new Ext.grid.RowNumberer(),
{ header: '单位代码', dataIndex: 'UnitId', sortable: true, hidden: true },
{ header: '单位代码', dataIndex: 'TypeCode', sortable: true,……
[/Quote]

运行到第一句就报错“缺少对象”~！

[长江]

[Quote=引用 1 楼 hefeng_aspnet 的回复:]
参考：http://blog.csdn.net/linkyou/article/details/6586387
[/Quote]

没看到有后台传数据

[阿非]

mvc 还是 webform

[jshi123]

	public void ProcessRequest(HttpContext context)
	{
		string str = "{\"totalCount\":\"1\",\"topics\":[{\"title\":\"XTemplate with in EditorGridPanel\",\"threadid\":\"133690\",\"username\":\"kpr@emco\",\"userid\":\"272497\",\"dateline\":\"1305604761\",\"postid\":\"602876\",\"forumtitle\":\"Ext 3.x: Help\",\"forumid\":\"40\",\"replycount\":\"2\",\"lastpost\":\"1305857807\",\"excerpt\":\"\"}]}";
		str = context.Request["callback"] + "(" + str + ")";
		context.Response.Write(str);
	}

[长江]

自己搞定了
http://blog.csdn.net/lonestar555/article/details/6979498

[IT民工010]

drfv

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