编程的初衷是什么 2013-01-03
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>My First Grid</title> <link rel="stylesheet" type="text/css" media="screen" href="css/ui-lightness/jquery-ui-1.9.2.custom.min.css" /> <link rel="stylesheet" type="text/css" media="screen" href="css/ui.jqgrid.css" /> <style type="text/css"> html, body { margin: 0; padding: 0; font-size: 75%; } </style> <script src="js/jquery-1.7.2.min.js" type="text/javascript"></script> <script src="js/grid.locale-en.js" type="text/javascript"></script> <script src="js/jquery.jqGrid.min.js" type="text/javascript"></script> <script type="text/javascript"> var data=[ {id:1,name:"xiao",birthday:"2012-12-12"}, {id:2,name:"xiao",birthday:"2012-12-12"}, {id:3,name:"xiao",birthday:"2012-12-12"}, {id:4,name:"xiao",birthday:"2012-12-12"}, {id:5,name:"xiao",birthday:"2012-12-12"}, {id:6,name:"xiao",birthday:"2012-12-12"}, {id:7,name:"xiao",birthday:"2012-12-12"}, {id:8,name:"xiao",birthday:"2012-12-12"}, {id:9,name:"xiao",birthday:"2012-12-12"}, {id:10,name:"xiao",birthday:"2012-12-12"}, ];// the native data $(function(){ $("#list").jqGrid({ datatype: "local",// specify the data from local data:data,// the data which will be displayed colNames:["ID","NAME", "BIRTHDAY"],// the column header names colModel :[ {name:"id", index:"id", width:100}, {name:"name", index:"name", width:100}, {name:"birthday", index:"birthday", width:100, sortable:false}, ],// the column discription pager: "#pager",// specify the pager bar rowNum:10, // sets how many records we want to view in the grid // An array to construct a select box element in the pager // in which we can change the number of the visible rows. rowList:[10,20,30], // add the new column which counts the number of available rows rownumbers:true, // the column according to which the data is to be sorted // when it is initially loaded sortname: "id", sortorder: "desc", // the initial sorting order // view the beginning and ending record number in the grid viewrecords: true, gridview: true, caption: "native grid", width:500, height:200, }); }); </script> </head> <body> <table id="list"></table> <div id="pager"></div> </body> </html>二 数据源来自服务器
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>My First Grid</title> <link rel="stylesheet" type="text/css" media="screen" href="css/ui-lightness/jquery-ui-1.9.2.custom.min.css" /> <link rel="stylesheet" type="text/css" media="screen" href="css/ui.jqgrid.css" /> <style type="text/css"> html, body { margin: 0; padding: 0; font-size: 75%; } </style> <script src="js/jquery-1.7.2.min.js" type="text/javascript"></script> <script src="js/grid.locale-en.js" type="text/javascript"></script> <script src="js/jquery.jqGrid.min.js" type="text/javascript"></script> <script type="text/javascript"> $(function(){ var result=null; $("#list").jqGrid({ datatype: "json", // specify the data in json format // specify the url of the file that returns // the data needed to populate the grid url:"/JavaWeb/JSONServlet", // an array which describes the structure of the expected json data jsonReader:{ repeatitems: false }, colNames:["ID","NAME", "BIRTHDAY"],// the column header names colModel :[ {name:"id", index:"id", width:100}, {name:"name", index:"name", width:100}, {name:"birthday", index:"birthday", width:100, sortable:false}, ],// the column discription pager: "#pager",// specify the pager bar rowNum:10, // sets how many records we want to view in the grid // An array to construct a select box element in the pager // in which we can change the number of the visible rows. rowList:[10,20,30], // add the new column which counts the number of available rows rownumbers:true, // the column according to which the data is to be sorted // when it is initially loaded sortname: "id", sortorder: "desc", // the initial sorting order // view the beginning and ending record number in the grid viewrecords: true, gridview: true, caption: "remote grid", width:500, height:200, }); }); </script> </head> <body> <table id="list"></table> <div id="pager"></div> </body> </html>Note:jsonReader可以不指定。它的默认设置如下:
jQuery("#gridid").jqGrid({ ... jsonReader : { root: "rows", page: "page", total: "total", records: "records", repeatitems: true, cell: "cell", id: "id", userdata: "userdata", subgrid: {root:"rows", repeatitems: true, cell:"cell" } }, ... });如果使用默认的jsonReader设置(repeatable:true),jqGrid所期望的json格式是
{ "total": "xxx", "page": "yyy", "records": "zzz", "rows" : [ {"id" :"1", "cell" :["cell11", "cell12", "cell13"]}, {"id" :"2", "cell":["cell21", "cell22", "cell23"]}, ... ] }
标签描述total返回的页面数量page要展现的当前页records返回的记录数量rows包含返回记录的数组id行的唯一标识符cell作为rows数组元素对象的一个属性包含返回记录数据的数组(与rows的区别在于:rows可包含除了真正的数据之外的其他属性)
如果设置repeatable:false,则表明让jqGrid通过名字在json数据中搜索元素。
jqGrid期望的json返回格式如下:{ "total": "xxx", "page": "yyy", "records": "zzz", "rows" : [ {"id" :"1", "name" :"xiao","birthday":"2012-01-01"}, {"id" :"2", "name":"xiao","birthday":"2012-01-01"}, ... ] }
其中的id,name,birthday对应于colModel中jsonmap的name属性。
更多可参考http://blog.csdn.net/hurryjiang/article/details/6891115