这部分讲解ui-grid的排序功能，排序功能是默认存在的，可以在ui-grid设置enableSorting标识符来设置 enable/disable。<p>
/需要注意的是：需要引入<code>ngAnimate</code>模块。/
（1）通过设置enableSorting: false在列上禁止排序。
（2）多列也能够被排序，比如点击了gender然后点击name
（3）点击菜单排序，这个排序效果是叠加性质的。比如你点击量一个按钮排序，在点击另外一个按钮排序，这个效果是叠加性质的，而不是取代。
（4）当点击头部的时候，会移除所有的排序。
（5）当编辑数据的时候表格排序是自己重新计算的。当在后台更改数据的时候，需要重新计算的时候，需要调用<code> gridApi.core.notifyDataChange( uiGridConstants.dataChange.EDIT )</code>来进行通知。
（6）可以通过为列设置<code> suppressRemoveSort: true</code>来设置默认的排序。
（7）点击一个列表的头部，排序先是向上，然后向下，最后是没有排序效果。
（8）排序算法是基于列表类型的，ui-grid能够自动猜测这个数据类型。但是还可以显示的设置列表类型，让其自动计算。
（9）可以通过<code> sortingAlgorithm</code>自定义排序算法。
<!doctype html>
<html ng-app="app">
<head>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular-touch.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular-animate.js"></script>
<script src="http://ui-grid.info/docs/grunt-scripts/csv.js"></script>
<script src="http://ui-grid.info/docs/grunt-scripts/pdfmake.js"></script>
<script src="http://ui-grid.info/docs/grunt-scripts/vfs_fonts.js"></script>
<script src="/release/ui-grid.js"></script>
<script src="/release/ui-grid.css"></script>
<script src="app.js"></script>
</head>
<body>
<div ng-controller="MainCtrl">
Click on a column header to sort by that column. (The third column has sorting disabled.)
To demonstrate the live sorting we provide a button that toggles the gender of Alexander Foley.
Sort by gender (ASC - so click twice) then name (using shift click), so that Alexander is at the top of the grid,
then click the toggleGender button.
<br>
<br>
<button id='toggleGender' ng-click='toggleGender()' class="btn btn-success" >Toggle Gender</button>
<div id="grid1" ui-grid="gridOptions1" class="grid"></div>
<br>
You can set an initial sort state for the grid by defining the `sort` property on your column definitions.
The `direction` sub-property says which way to sort, and the `priority` says what order to sort the columns
in (lower priority gets sorted first).
<br>
<br>
<div id="grid2" ui-grid="gridOptions2" class="grid"></div>
</div>
</body>
</html>
.grid {
width: 500px;
height: 200px;
}
var app = angular.module('app', ['ngAnimate', 'ngTouch', 'ui.grid']);
app.controller('MainCtrl', ['$scope', '$http', 'uiGridConstants', function ($scope, $http, uiGridConstants) {
$scope.gridOptions1 = {
enableSorting: true,
columnDefs: [
{ field: 'name' },
{ field: 'gender' },
{ field: 'company', enableSorting: false }
],
onRegisterApi: function( gridApi ) {
$scope.grid1Api = gridApi;
}
};
$scope.toggleGender = function() {
if( $scope.gridOptions1.data[64].gender === 'male' ) {
$scope.gridOptions1.data[64].gender = 'female';
} else {
$scope.gridOptions1.data[64].gender = 'male';
};
$scope.grid1Api.core.notifyDataChange( uiGridConstants.dataChange.EDIT );
};
$scope.gridOptions2 = {
enableSorting: true,
onRegisterApi: function( gridApi ) {
$scope.grid2Api = gridApi;
},
columnDefs: [
{
field: 'name',
sort: {
direction: uiGridConstants.DESC,
priority: 1
}
},
{
field: 'gender',
sort: {
direction: uiGridConstants.ASC,
priority: 0,
},
suppressRemoveSort: true,
sortingAlgorithm: function(a, b, rowA, rowB, direction) {
var nulls = $scope.grid2Api.core.sortHandleNulls(a, b);
if( nulls !== null ) {
return nulls;
} else {
if( a === b ) {
return 0;
}
if( a === 'male' ) {
return 1;
}
if( b === 'male' ) {
return -1;
}
if( a == 'female' ) {
return 1;
}
if( b === 'female' ) {
return -1;
}
return 0;
}
}
},
{ field: 'company', enableSorting: false }
]
};
$http.get('/data/100.json')
.success(function(data) {
$scope.gridOptions1.data = data;
$scope.gridOptions2.data = data;
});
}]);
