shaaa shaaa - 18 days ago 8
AngularJS Question

get selected checkbox values from tree in angularjs

I would like to know how can we get the selected checkbox values from tree in controller from the below example? On click of a button i want to display all the checkbox names in an array. Here is my plnkr- https://plnkr.co/edit/OSpLLl9YrlzqhM7xsYEv?p=preview
//code goes here,

//Controller
Controller to display the tree.
(function (ng) {
var app = ng.module('tree', ['tree.service', 'tree.directives']);
app.controller("TreeController", ["TreeService", function (TreeService) {
var tc = this;
buildTree();
function buildTree() {
TreeService.getTree().then(function (result) {
tc.tree = result.data;
}, function (result) {
alert("Tree no available, Error: " + result);
});
}
}]);
})(angular);




//Tree Directive
Directive used for creating tree node.
(function (ng) {
var app = ng.module('tree.directives', []);
app.directive('nodeTree', function () {
return {
template: '<node ng-repeat="node in tree"></node>',
replace: true,
restrict: 'E',
scope: {
tree: '=children'
}
};
});
app.directive('node', function ($compile) {
return {
restrict: 'E',
replace: true,
templateUrl: 'node.html', // HTML for a single node.
link: function (scope, element) {
/*
* Here we are checking that if current node has children then compiling/rendering children.
* */
if (scope.node && scope.node.children && scope.node.children.length > 0) {
scope.node.childrenVisibility = true;
var childNode = $compile('<ul class="tree" ng-if="!node.childrenVisibility"><node-tree children="node.children"></node-tree></ul>')(scope);
element.append(childNode);
} else {
scope.node.childrenVisibility = false;
}
},
controller: ["$scope", function ($scope) {
// This function is for just toggle the visibility of children
$scope.toggleVisibility = function (node) {
if (node.children) {
node.childrenVisibility = !node.childrenVisibility;
}
};
// Here We are marking check/un-check all the nodes.
$scope.checkNode = function (node) {
node.checked = !node.checked;
function checkChildren(c) {
angular.forEach(c.children, function (c) {
c.checked = node.checked;
checkChildren(c);
});
}

checkChildren(node);
};
}]
};
});
})(angular);

Answer

Hello: Look at this plunker link. It works here

https://plnkr.co/edit/vaoCzUJZBf31wtLNJ5f5?p=preview

(function (ng) {
var app = ng.module('tree', ['tree.service', 'tree.directives']);
app.controller("TreeController", ["TreeService", "$scope", function (TreeService, $scope) {
    var tc = this;
    buildTree();
    function buildTree() {
        TreeService.getTree().then(function (result) {
            tc.tree = result.data;
        }, function (result) {
            alert("Tree no available, Error: " + result);
        });
    }

   var list = [];
   $scope.selectedItems = [];

   $scope.getSelected = function(){
     function checkChildren(c) {
          angular.forEach(c.children, function (c) {
             if (c.checked){
                $scope.selectedItems.push(c.name);
             }
              checkChildren(c);
          });
     }


      angular.forEach(tc.tree, function(value, key) {
          if (value.checked){
            $scope.selectedItems.push(value.name);
          }

           checkChildren(value);
      });
   };
}]);})(angular);