javascript 中一个有用的框架 Ext2.0

用过ext的人都知道，gridpanel 可以很方便的达到我们web开发中要求，并且整体的风格也是很漂亮的，所以大部分的控件都是可以直接使用的
 <script type="text/javascript">
     Ext.onReady(function(){
       var grid = new Ext.ux.AutoGridPanel({
                title:'Auto loading columnmodel',
                renderTo: 'testgrid',
                height: 400,
                500,
                loadMask: true,    
                autoSave: true,
                saveUrl: 'saveconfig.php',               
                store : new Ext.data.Store({
                    proxy: new Ext.data.HttpProxy({
                        url: 'GenerateData.ashx?grid=grid'
                    }),

                reader: new Ext.data.JsonReader()
                })
            });
            grid.store.load({params: {meta: true}});    
        });     
    </script>
  <div>
        <div id="testgrid">
        </div>
        <input type="button" onclick="grid.store.load();" value="load" />
        <input type="button" onclick="grid.store.baseParams.style = 's1'; grid.store.load({params: {meta: true}});"
            value="load+meta" />
        <input type="button" onclick="grid.store.baseParams.style = 's2'; grid.store.load({params: {meta: true}});"
            value="load+alt meta" />
        <p>
            Try re-arranging/moving some collums, and reload the page</p>
    </div>
以上就是页面上的写法，具体的可以参考ext api函数
后台的数据是donet ashx页面生成的jason数据，数据的结构是这样的
  private string ProcessAutogrid(HttpContext context)
        {
            string result = string.Empty;
            context.Response.ContentType = "text/xml";
            if (context.Request["grid"] != null)
            {
                result = "{\"metaData\":{\"root\":\"rows\",\"id\":0,\"totalProperty\":\"totalCount\",\"fields\":[{\"name\":\"company\",\"header\":\"Company\",\"width\":179,\"hidden\":false},{\"name\":\"price\",\"header\":\"Price\",\"width\":77,\"hidden\":false},{\"name\":\"info\",\"header\":\"Info\",\"hidden\":false,\"width\":0},{\"name\":\"date\",\"header\":\"Last Updated\",\"width\":113,\"hidden\":false},{\"name\":\"id\",\"type\":\"int\"}]},\"rows\":[{\"company\":\"3m Co\",\"price\":\"71.72\",\"info\":\"Hello\",\"date\":\"2007-06-10\",\"id\":null},{\"company\":\"Alcoa Inc\",\"price\":\"29.01\",\"info\":\"World\",\"date\":\"2007-06-11\",\"id\":null},{\"company\":\"Altria Group Inc\",\"price\":\"83.81\",\"info\":\"!!!\",\"date\":\"2007-07-01\",\"id\":null},{\"company\":\"Microsoft\",\"price\":\"100.10\",\"info\":\"testing\",\"date\":\"2007-08-01\",\"id\":null},{\"company\":\"IBM\",\"price\":\"120.81\",\"info\":\"autogrid\",\"date\":\"2007-08-10\",\"id\":null},{\"company\":\"NOVELL\",\"price\":\"211.15\",\"info\":\"paging\",\"date\":\"2007-09-03\",\"id\":null},{\"company\":\"PHP Group\",\"price\":\"453.11\",\"info\":\"and\",\"date\":\"2007-09-05\",\"id\":null},{\"company\":\"MySQL Group\",\"price\":\"233.41\",\"info\":\"more\",\"date\":\"2007-10-01\",\"id\":null},{\"company\":\"BOTECH\",\"price\":\"843.81\",\"info\":\"testing...\",\"date\":\"2007-11-04\",\"id\":null}],\"totalCount\":9}";

                #region test data

                //        result = "{\"items\" : ["

        //                + "{\"id\" : \"TRIST\" , \"port_id\" : \"TRIST\" , \"port_name\" : \"ISTANBUL\" , \"region_id\" : \"MED\" , \"country_id\" : \"TR\"},"
        //                + "{\"id\" : \"TRISTTR\" , \"port_id\" : \"TRISTT\" , \"port_name\" : \"ISTANBULUYT\" , \"region_id\" : \"MEDRTYTR\" , \"country_id\" : \"TRRYT\"},"
        //                + "{\"id\" : \"TRIZM\" , \"port_id\" : \"TRIZM\" , \"port_name\" : \"IZMIR\" , \"region_id\" : \"MED\" , \"country_id\" : \"TR\"}],"
        //                + " \"metaData\" : { "

        //   + " \"fields\" : ["
        //   + " {\"name\" : \"id\", \"type\" : \"string\" } , {\"name\" : \"port_id\", \"type\" : \"string\" } , {\"name\" : \"port_name\", \"type\" : \"string\" } ,{\"name\" : \"region_id\", \"type\" : \"string\" } ,{\"name\" : \"country_id\", \"type\" : \"string\" }],"

        //   + "  \"columns\" : ["
        //   + " {\"header\" : \"#id\", \"dataIndex\" : \"id\", \"width\" : 75, \"editable\" : true, \"editor\" : new Ext.form.TextField({allowBlank: false}), \"sortable\" : true, \"hidden\" : true  } ,"
        //   + " {\"header\" : \"#port_id\", \"dataIndex\" : \"port_id\", \"width\" : 75, \"editable\" : true, \"editor\" : new Ext.form.TextField({allowBlank: false}), \"sortable\" : true, \"hidden\" : false  } ,"
        //   + " {\"header\" : \"#port_name\", \"dataIndex\" : \"port_name\", \"width\" : 75, \"editable\" : true, \"editor\" : new Ext.form.TextField({allowBlank: false}), \"sortable\" : true, \"hidden\" : false  } ,"
        //   + " {\"header\" : \"#region_id\", \"dataIndex\" : \"region_id\", \"width\" : 75, \"editable\" : true, \"editor\" : new Ext.form.TextField({allowBlank: false}), \"sortable\" : true, \"hidden\" : false  } ,"
        //   + " {\"header\" : \"#country_id\", \"dataIndex\" : \"country_id\", \"width\" : 75, \"editable\" : true, \"editor\" : new Ext.form.TextField({allowBlank: false}), \"sortable\" : true, \"hidden\" : false  } ],"

        //+ "\"scope\" : \"demoserver\","
        //+ "\"entity\" : \"port_mast\","
        //+ " \"sort\" : \"port_name\","
        //+ "\"dir\" : \"ASC\","
        //+ " \"start\" : \"0\","
        //+ " \"limit\" : \"25\","
        //+ " \"id\" : \"port_id\","
        //+ " \"root\" : \"items\","
        //+"  \"totalProperty\" : \"totalCount\", "
        //+ " \"totalCount\" : \"3\"}"
                //+ "} ";
                #endregion
            }
            return result;
        }
这个和基本的grid 是有所不同的，不用定义ComlumnModal，只要在jason数据中定义就可以根据数据自动生成grid header 等等的，比较有用的啊，AutoGridPanel 是在gridpanel 的基础扩展的，对这个ext javascript 比较感兴趣的朋友可以研究，我最近正在看源代码，正在学习的朋友可以多谢交流
主站 http://extjs.com/
可以在论坛发帖子，这个论坛是很活跃的。