查询,grid刷新

grid.getSelectionModel().selectFirstRow(); // 默认选择第一行

 

     var  store  =   new  Ext.data.SimpleStore( {
        fields: [
            { name:  ' company '  } ,
            { name:  ' price ' , type:  ' float '  } ,
            { name:  ' change ' , type:  ' float '  } ,
            { name:  ' pctChange ' , type:  ' float '  } ,
            { name:  ' lastChange ' , type:  ' date ' , dateFormat:  ' n/j h:ia '  }
        ]
    } );
    store.loadData(myData); // 加载数据

 

var fnAjaxDemo = function() {
            var mydata;
            Ext.Ajax.request({
                url: "MyService.svc/GetClsData?name=" + encodeURIComponent(Ext.get("ProductName").dom.value), //服务器端地址
                success: function(request) {                   
                    store.loadData(eval(request.responseText));                    
                },
                failure: function() {
                    alert("failure!");
                }
            });
        }

        Ext.get("btnRefresh").on("click", fnAjaxDemo);

 

3. 如果设置了autoExpandColumn，则autoExpandColumn对应的列，必须是id对应的列，否则出错