Kendo UI开发教程(6): Kendo DataSource 概述
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。
准备开始
下面创建一个本地数据源。
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var movies = [ { |
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title: "Star Wars: A New Hope", |
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year: 1977 |
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}, { |
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title: "Star Wars: The Empire Strikes Back", |
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year: 1980 |
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}, { |
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title: "Star Wars: Return of the Jedi", |
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year: 1983 |
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} |
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]; |
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var localDataSource = new kendo.data.DataSource({data: movies}); |
创建一个远程数据源 （Twitter）
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var dataSource = new kendo.data.DataSource({ |
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transport: { |
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read: { |
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// the remote service url |
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url: "http://search.twitter.com/search.json", |
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// JSONP is required for cross-domain AJAX |
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dataType: "jsonp", |
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// additional parameters sent to the remote service |
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data: { |
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q: "html5" |
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} |
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} |
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}, |
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// describe the result format |
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schema: { |
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// the data which the data source will be bound to is in the "results" field |
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data: "results" |
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} |
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}); |
绑定数据源到UI组件
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
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$("#chart").kendoChart({ |
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title: { |
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text: "Employee Sales" |
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}, |
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dataSource: new kendo.data.DataSource({ |
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data: [ |
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{ |
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employee: "Joe Smith", |
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sales: 2000 |
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}, |
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{ |
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employee: "Jane Smith", |
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sales: 2250 |
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}, |
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{ |
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employee: "Will Roberts", |
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sales: 1550 |
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}] |
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}), |
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series: [{ |
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type: "line", |
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field: "sales", |
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name: "Sales in Units" |
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}], |
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categoryAxis: { |
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field: "employee" |
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} |
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}); |
使用共享的远程数据源
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var sharableDataSource = new kendo.data.DataSource({ |
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transport: { |
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read: { |
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url: "data-service.json", |
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dataType: "json" |
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} |
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} |
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}); |
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// Bind two UI widgets to same DataSource |
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$("#chart").kendoChart({ |
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title: { |
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text: "Employee Sales" |
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}, |
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dataSource: sharableDataSource, |
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series: [{ |
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field: "sales", |
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name: "Sales in Units" |
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}], |
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categoryAxis: { |
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field: "employee" |
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} |
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}); |
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$("#grid").kendoGrid({ |
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dataSource: sharableDataSource, |
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columns: [ |
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{ |
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field: "employee", |
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title: "Employee" |
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}, |
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{ |
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field: "sales", |
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title: "Sales", |
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template: '#= kendo.toString(sales, "N0") #' |
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}] |
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}); |
这个例子使用了模板 template ,模板的用法参见后面的文章。
