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Kendo 的数据源支持本地数据源(JavaScript 对象数组),或者远程数据源(XML, JSON, JSONP),支持CRUD操作(创建,读取,更新和删除操作),并支持排序,分页,过滤,分组和集合等。
下面创建一个本地数据源。
var movies = [ { title: "Star Wars: A New Hope", year: 1977 }, { title: "Star Wars: The Empire Strikes Back", year: 1980 }, { title: "Star Wars: Return of the Jedi", year: 1983 } ]; var localDataSource = new kendo.data.DataSource({data: movies});
创建一个远程数据源 (Twitter)
var dataSource = new kendo.data.DataSource({ transport: { read: { // the remote service url url: "http://search.twitter.com/search.json", // JSONP is required for cross-domain AJAX dataType: "jsonp", // additional parameters sent to the remote service data: { q: "html5" } } }, // describe the result format schema: { // the data which the data source will be bound to is in the "results" field data: "results" } });
Kendo UI组件很多都支持数据绑定 ,UI组件绑定的数据源可以在配置UI组件时设置,或是多个UI组件共享同一个数据源。
创建UI组件时设置DataSource属性
$("#chart").kendoChart({ title: { text: "Employee Sales" }, dataSource: new kendo.data.DataSource({ data: [ { employee: "Joe Smith", sales: 2000 }, { employee: "Jane Smith", sales: 2250 }, { employee: "Will Roberts", sales: 1550 }] }), series: [{ type: "line", field: "sales", name: "Sales in Units" }], categoryAxis: { field: "employee" } });
使用共享的远程数据源
var sharableDataSource = new kendo.data.DataSource({ transport: { read: { url: "data-service.json", dataType: "json" } } }); // Bind two UI widgets to same DataSource $("#chart").kendoChart({ title: { text: "Employee Sales" }, dataSource: sharableDataSource, series: [{ field: "sales", name: "Sales in Units" }], categoryAxis: { field: "employee" } }); $("#grid").kendoGrid({ dataSource: sharableDataSource, columns: [ { field: "employee", title: "Employee" }, { field: "sales", title: "Sales", template: '#= kendo.toString(sales, "N0") #' }] });
这个例子使用了模板 template ,模板的用法参见后面的文章。