这篇文章简单介绍下使用 Dojo 的 filter 插件，实现表格数据的筛选功能。 和上一篇 使用 Dojo 显示表格数据，并带筛选(filter)功能不一样的是，grid.filter() 只是一个筛选函数的使用，而
这篇文章简单介绍下使用 Dojo 的 filter 插件，实现表格数据的筛选功能。
和上一篇 使用 Dojo 显示表格数据，并带筛选(filter)功能 不一样的是，grid.filter() 只是一个筛选函数的使用，而 filter 插件则是一个完整的筛选的解决方案。只需要 EnhancedGrid 对象的 structure 对象进行配置，就能得到效果完整的筛选功能。
在 dataGrid 对象加上 filter 插件步骤：
1. 将 dataGrid 对象升级为 EnhancedGrid 对象
2. 给 EnhancedGrid 对象加入 filter 的 plugin
3. 在 EnhancedGrid.structure 中配置 filter 参数。
实用的 filter 参数有：
filterable
autoComplete
datatype
disabledConditions
关于 filter 插件的更多详细信息 参考 Dojo 官网
可运行代码如下 :
<!DOCTYPE html>
<html >
<head>
<link rel="stylesheet" href="./dojo/dojo/../dijit/themes/claro/claro.css">
<style type="text/css">
@import "./dojo/dojo/../dojo/resources/dojo.css";
@import "./dojo/dojo/../dijit/themes/claro/claro.css";
@import "./dojo/dojo/../dijit/themes/claro/document.css";
@import "./dojo/dojo/../dojox/grid/enhanced/resources/claro/EnhancedGrid.css";
@import "./dojo/dojo/../dojox/grid/enhanced/resources/EnhancedGrid_rtl.css";
</style>
<script>dojoConfig = {parseOnLoad: true}</script>
<script src='./dojo/dojo/dojo.js'></script>
<script>
dojo.require("dojo.data.ItemFileWriteStore");
dojo.require("dojox.grid.EnhancedGrid");
dojo.require("dojox.grid.enhanced.plugins.Filter");
var data = {
identifier: 'id',
label: 'id',
items: []
};
var data_list = [
{"Heard": true, "Artist":"aaa", "Name":"HHH There", "Track":4, "Download Date":"1923/4/9"},
{"Heard": true, "Artist":"aabbb", "Name":"LLL Hey", "Track":4, "Download Date":"1947/12/6"},
{"Heard": true, "Artist":"bbcc", "Name":"LLL Hey", "Track":4, "Download Date":"1947/12/6"},
{"Heard": true, "Artist":"aabbcc", "Name":"LLL Street", "Track":8, "Download Date":"1906/3/22"},
{"Heard": true, "Artist":"bbcc", "Name":"TTT", "Track":5, "Download Date":"1994/11/29"}
];
var i, len;
for(i=0, len = data_list.length; i < len; ++i){
data.items.push(dojo.mixin({'id': i + 1 }, data_list[i % len]));
}
var layout = [
{ field: "id", datatype:"number", filterable:false},
{ field: "Artist", datatype:"string",
// Declare that we need the ComboBox for suggestions (autoComplete by default)
autoComplete: true,
disabledConditions: ["contains", "startsWith", "endsWith", "notEqualTo", "notcontains", "notStartsWith", "notEndsWith", "isEmpty"]
},
{ field: "Name", datatype:"string",
// Declare that we do not need the following conditions for this column
autoComplete: true,
disabledConditions: ["contains", "startsWith", "endsWith", "notEqualTo", "notcontains", "notStartsWith", "notEndsWith", "isEmpty"]
},
{ field: "Download Date", datatype:"date", filterable:false },
];
// In case you've close the filter bar, here's a way to bring it up.
function showFilterBar(){
dijit.byId('grid').showFilterBar(true);
}
dojo.ready(function(){
var store = new dojo.data.ItemFileWriteStore({data: data});
var grid = new dojox.grid.EnhancedGrid({
id: 'grid',
store: store,
structure: layout,
plugins: {
filter: {
closeFilterbarButton: true,
ruleCount: 5,
// Set the name of the items
itemsName: "itemsssss"
}
}
});
grid.placeAt('gridContainer');
grid.startup();
});
</script>
</head>
<body class="claro">
<div id="gridContainer" style="width: 100%; height: 400px;"></div>
<button onclick='showFilterBar()'>Show Filter Bar</button>
</body>
</html>