我正在AngularJS中尝试根据从DB获得的数据，使用动态过滤器（Location-Value，如US、in、CA等）将员工详细信息显示为复选框列表。我尝试了多种方法都没有成功。请帮助从复选框列表中获取动态筛选器。
我的代码示例如下：
<html>
<body ng-app="myapp" ng-controller="myController">
<div >Location</div>
<table>
<tbody>
<tr ng-repeat="empL in EmpResult | unique : 'Location'">
<td>
<span>
<input type="checkbox" ng-model="loc" value={{empL.Location}} />
{{empL.Location}}
</span>
</td>
</tr>
</tbody>
</table>
<table align="left" style="width: 100%" class="table">
<thead>
<tr>
<th align="left" style="width: 30%">Employee</th>
<th align="left" style="width: 20%">Address</th>
<th align="left" style="width: 15%">Location</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="empN in EmpResult | filter : loc">
<td align="left" style="width: 30%">{{empN.EmpName}}</td>
<td align="left" style="width: 10%">{{empN.Address}}</td>
<td align="left" style="width: 15%">{{empN.Location}}</td>
</tr>
</tbody>
</table>
<script type="text/javascript">
var myapp = angular.module('myapp', ['ui.unique'])
.controller("myController", function ($scope, $http) {
$http({
method: 'Get',
params: { strName: $scope.strName },
url: 'Emp.asmx/GetEmpbyName'
}).then(function (response) {
$scope.EmpResult = response.data;
})
});
</script>
</body>
</html>
我已经为您的问题创建了一个镜像，请查看它。我认为它应该适用于您的情况。
Plunker
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>
document.write('<base href="' + document.location + '" />');
</script>
<script data-require="angular.js@1.4.x" src="https://code.angularjs.org/1.4.9/angular.js" data-semver="1.4.9"></script>
</head>
<body ng-app="myApp" ng-controller="myController">
<div ng-init="init()">Location</div>
<table>
<tbody>
<tr ng-repeat="empL in locations">
<td>
<span>
<input type="checkbox" name="locations + $index" data-ng-model="locChkBox.loc[$index]" ng-true-value="'{{empL}}'" ng-false-value="" ng-change="repopulate()"/>
{{empL}}
</span>
</td>
</tr>
</tbody>
</table>
<table align="left" style="width: 100%" class="table">
<thead>
<tr>
<th align="left" style="width: 30%">Employee</th>
<th align="left" style="width: 20%">Address</th>
<th align="left" style="width: 15%">Location</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="empN in EmpResult | filter : locFilter ">
<td align="left" style="width: 30%">{{empN.EmpName}}</td>
<td align="left" style="width: 10%">{{empN.Address}}</td>
<td align="left" style="width: 15%">{{empN.Location}}</td>
</tr>
</tbody>
</table>
<script>
var myApp = angular.module('myApp', []);
myApp.controller("myController", ['$scope', '$http', function($scope, $http) {
$scope.locations = [];
$scope.search = {};
$scope.locChkBox = {};
$scope.locChkBox.loc = [];
$scope.locChkBox.loc.push("US");
$scope.init = function() {
$scope.EmpResult = JSON.parse('[{"EmpName":"jondoe","Address":"dummyAddr","Location":"US"},{"EmpName":"jondoe2","Address":"dummyAddr2","Location":"IN"},{"EmpName":"jondoe3","Address":"dummyAddr3","Location":"CA"},{"EmpName":"jondoe4","Address":"dummyAddr4","Location":"US"},{"EmpName":"jondoe5","Address":"dummyAddr5","Location":"IN"},{"EmpName":"jondoe6","Address":"dummyAddr6","Location":"CA"},{"EmpName":"jondoe7","Address":"dummyAddr7","Location":"US"},{"EmpName":"jondoe8","Address":"dummyAddr8","Location":"IN"},{"EmpName":"jondoe9","Address":"dummyAddr9","Location":"CA"},{"EmpName":"jondoe11","Address":"dummyAddr11","Location":"US"},{"EmpName":"jondoe22","Address":"dummyAddr22","Location":"IN"}]');
var flags = [],
output = [],
l = $scope.EmpResult.length,
i;
for (i = 0; i < l; i++) {
if (flags[$scope.EmpResult[i].Location]) continue;
flags[$scope.EmpResult[i].Location] = true;
output.push($scope.EmpResult[i].Location);
}
$scope.locations = output;
};
$scope.locFilter = function(item) {
for (var i = 0; i < $scope.locChkBox.loc.length; i++) {
if (item.Location === $scope.locChkBox.loc[i])
return true;
}
return false;
};
}]);
</script>
</body>
</html>编辑2
如果未选中任何复选框，此代码将显示所有值。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>
document.write('<base href="' + document.location + '" />');
</script>
<script data-require="angular.js@1.4.x" src="https://code.angularjs.org/1.4.9/angular.js" data-semver="1.4.9"></script>
</head>
<body ng-app="myApp" ng-controller="myController">
<div ng-init="init()">Location</div>
<table>
<tbody>
<tr ng-repeat="empL in locations">
<td>
<span>
<input type="checkbox" name="locations + $index" data-ng-model="locChkBox.loc[$index]" ng-true-value="'{{empL}}'" ng-false-value="" ng-change="repopulate()"/>
{{empL}}
</span>
</td>
</tr>
</tbody>
</table>
<table align="left" style="width: 100%" class="table">
<thead>
<tr>
<th align="left" style="width: 30%">Employee</th>
<th align="left" style="width: 20%">Address</th>
<th align="left" style="width: 15%">Location</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="empN in EmpResult | filter : locFilter ">
<td align="left" style="width: 30%">{{empN.EmpName}}</td>
<td align="left" style="width: 10%">{{empN.Address}}</td>
<td align="left" style="width: 15%">{{empN.Location}}</td>
</tr>
</tbody>
</table>
<script>
var myApp = angular.module('myApp', []);
myApp.controller("myController", ['$scope', '$http', function($scope, $http) {
$scope.locations = [];
$scope.search = {};
$scope.locChkBox = {};
$scope.locChkBox.loc = [];
$scope.init = function() {
$scope.EmpResult = JSON.parse('[{"EmpName":"jondoe","Address":"dummyAddr","Location":"US"},{"EmpName":"jondoe2","Address":"dummyAddr2","Location":"IN"},{"EmpName":"jondoe3","Address":"dummyAddr3","Location":"CA"},{"EmpName":"jondoe4","Address":"dummyAddr4","Location":"US"},{"EmpName":"jondoe5","Address":"dummyAddr5","Location":"IN"},{"EmpName":"jondoe6","Address":"dummyAddr6","Location":"CA"},{"EmpName":"jondoe7","Address":"dummyAddr7","Location":"US"},{"EmpName":"jondoe8","Address":"dummyAddr8","Location":"IN"},{"EmpName":"jondoe9","Address":"dummyAddr9","Location":"CA"},{"EmpName":"jondoe11","Address":"dummyAddr11","Location":"US"},{"EmpName":"jondoe22","Address":"dummyAddr22","Location":"IN"}]');
var flags = [],
output = [],
l = $scope.EmpResult.length,
i;
for (i = 0; i < l; i++) {
if (flags[$scope.EmpResult[i].Location]) continue;
flags[$scope.EmpResult[i].Location] = true;
output.push($scope.EmpResult[i].Location);
}
$scope.locations = output;
};
$scope.locFilter = function(item) {
if($scope.locChkBox.loc.isNull()) return true;
for (var i = 0; i < $scope.locChkBox.loc.length; i++) {
if (item.Location === $scope.locChkBox.loc[i])
return true;
}
return false;
};
}]);
Array.prototype.isNull = function (){
return this.join().replace(/,/g,'').length === 0;
};
</script>
</body>
</html><tr ng-repeat="empN in EmpResult | filter : 'loc'">
也可以使用带有单引号的筛选器。这将从复选框中筛选数据。