有时我们需要做一个gird,但gird的列名确是变化的,我们需要从数据库中先查出列名,也就是说我们要实现一个动态的gird.
下面的代码是我实现动态gird的方法,简单但强大,数据是读的json文件,实际使用的时候可以把在后台把数据存在map中再转成json格式的字符串即可,json格式要符合我给出的格式。
首先是json数据:
{ "data": [ { "number": "1", "field1": "a", "field2": "b", "field3": "c" }, { "number": "2", "field1": "d", "field2": "e", "field3": "f" }, { "number": "3", "field1": "g", "field2": "h", "field3": "i" } ], "columnModle": [ { "text": "序号", "dataIndex": "number", "width": 40, "locked":true }, { "text": "字段1", "dataIndex": "field1" }, { "text": "字段2", "dataIndex": "field2" }, { "text": "字段3", "dataIndex": "field3" } ], "fieldsNames": [ { "name": "number" }, { "name": "field1" }, { "name": "field2" }, { "name": "field3" } ] }
然后是js文件:
Ext.onReady(function() { Ext.Ajax.request({ url : "page/data/test1.json", params : { }, success : function(response, config) { json = Ext.util.JSON.decode(response.responseText); var store = new Ext.data.JsonStore({ data : json.data, fields : json.fieldsNames }); var column_ = json.columnModle; var grid = new Ext.grid.Panel({ title : ‘动态表格‘, region : ‘center‘, xtype: ‘locking-grid‘, //类型为锁定表格 split : true, renderTo : Ext.getBody(), height : 300, width : 1200, columns: column_, store:store }); }, failure : function() { } }); });
奉上截图:
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时间: 2024-10-11 03:53:11