上次介绍了 Bootstrap 2 中附带的 typeahead,功能强大,但是使用起来不太方便,作者 Terry Rosen 已经升级了一个新版本 v1.2.2,作出了很大的改进。 下载地址 https://github.com/tcrosen/twitter-bootstrap-typeahead 使用环境 Twitter Bootstrap 2.0 jQue
上次介绍了 Bootstrap 2 中附带的 typeahead,功能强大,但是使用起来不太方便,作者 Terry Rosen 已经升级了一个新版本 v1.2.2,作出了很大的改进。
下载地址
https://github.com/tcrosen/twitter-bootstrap-typeahead
使用环境
- Twitter Bootstrap 2.0+
- jQuery 1.7+
页面准备
<span><span>link </span><span>href</span><span>="/path/to/bootstrap.css"</span><span> rel</span><span>="stylesheet"</span><span>></span> <span><span>script </span><span>src</span><span>="/path/to/jquery.js"</span><span> type</span><span>="text/javascript"</span><span>></span><span>script</span><span>></span> <span><span>script </span><span>src</span><span>="/path/to/bootstrap-typeahead.js"</span><span> type</span><span>="text/javascript"</span><span>></span><span>script</span><span>></span></span></span></span>
脚本
$(myElement).typeahead(options);
事件
事件 | 说明 |
---|---|
grepper | Filters relevant results from the source. |
highlighter | Highlights any matching results in the list. |
itemSelected | 当选中一个项目时的回调函数.
|
lookup | Determines if source is remote or local and initializes the search. |
matcher | Looks for a match between the query and a source item. |
render | Renders the list of results. |
select | Selects an item from the results list. |
sorter | 排序结果. |
初始化参数
基本使用
如果使用本地数据的话直接使用 source
<span>var</span> mySource = [{ id: 1, name: 'Terry'}, { id: 2, name: 'Mark'}, { id: 3, name: 'Jacob'<span>}]; $(</span>'#myElement'<span>).typeahead({ source: mySource });</span>
如果使用 Ajax 的话,可以直接指定 url,注意,现在的版本要求必须使用对象形式的数据源,默认显示文本为对象的 name 属性,可以通过初始化参数的 display 配置,默认的标识属性为 id ,可以使用 val 进行配置。
$('#myElement'<span>).typeahead({ ajax: </span>'/path/to/mySource'<span> });</span>
使用 Ajax
$(<span>function</span><span> () { $(</span>'#product_search'<span>).typeahead({ ajax: { url: </span>'@Url.Action("AjaxService")'<span>, timeout: </span>300, <span>//</span><span> 延时</span> method: 'post'<span>, triggerLength: </span>3, <span>//</span><span> 输入几个字符之后,开始请求</span> loadingClass: <span>null</span>, <span>//</span> 加载数据时, 元素使用的样式类<span> preDispatch: </span><span>null</span><span>, // 发出请求之前,调用的预处理方法 preProcess: </span><span>null // Ajax 请求完成之后,调用的后处理方法</span><span> }, display: </span>"name", <span>//</span><span> 默认的对象属性名称为 name 属性</span> val: "id", <span>//</span><span> 默认的标识属性名称为 id 属性</span> items: 8, <span>//</span><span> 最多显示项目数量</span> itemSelected: <span>function</span> (item, val, text) { <span>//</span><span> 当选中一个项目的时候,回调函数</span> <span> console.info(item); } }); });</span>
如果我们需要在请求中,除了递进搜索的参数之外,添加额外的请求参数怎么办呢,可以通过 preDispatch 进行额外处理,需要注意的是,一定要返回一个对象,这个对象将用来使用 jQuery 的 Ajax 方法作为参数。
$(<span>function</span><span> () { $(</span>'#product_search'<span>).typeahead({ ajax: { url: </span>'@Url.Action("AjaxService")'<span>, timeout: </span>300, <span>//</span><span> 延时</span> method: 'post'<span>, triggerLength: </span>3, <span>//</span><span> 输入几个字符之后,开始请求</span> loadingClass: <span>null</span>, <span>// </span> preDispatch: <span>function</span><span> (query) { </span><span>var</span> para = { other: 'xxxxxxxxx'<span> }; para.query </span>=<span> query; </span><span>return</span><span> para; }, preProcess: </span><span>function</span><span> (result) { </span><span>return</span><span> result; } }, display: </span>"name", <span>//</span><span> 默认的对象属性名称为 name 属性</span> val: "id", <span>//</span><span> 默认的标识属性名称为 id 属性</span> items: 8, <span>//</span><span> 最多显示项目数量</span> itemSelected: <span>function</span> (item, val, text) { <span>//</span><span> 当选中一个项目的时候,回调函数</span> <span> console.info(item); </span><span>//</span><span> console.info($("#product_search").val());</span> <span> } }); });</span>

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