Question

我使用angular treeview使用angularjs构建树。一旦我选择了一个节点，我想知道父节点＆＃39;选定的一个。

我不想添加名为＆＃39; parent＆＃39;的属性。在json数据中也不想创建任何父子键值对数组可以在初始文件中进行哪些更改以获得结果？

HTML

<div ng-app="myApp">
  <div ng-controller="myController">

    <div style="display:table-row; width:500px;">
      <div style="display:table-cell; width:250px;">
        <div style="margin:10px 5px 30px 5px; padding:10px; background-color:#EEEEEE; border-radius:5px; font:12px Tahoma;">
          <span><b>First Tree's Selected Node</b> : <br>{{tree01.currentNode.roleName}}</span>
        </div>
      </div>
      <div style="display:table-cell; width:250px;">
        <div style="margin:10px 5px 30px 5px; padding:10px; background-color:#EEEEEE; border-radius:5px; font:12px Tahoma;">
          <span><b>Second Tree's Selected Node</b> : <br>{{tree02.currentNode.roleName}}</span>
        </div>
      </div>
    </div>
    <div style="display:table-row; width:500px;">
      <div style="display:table-cell; width:250px;">

        <!-- FIRST TREE -->
        <div data-angular-treeview="true" data-tree-id="tree01" data-tree-model="roleList1" data-node-id="roleId" data-node-label="roleName" data-node-children="children">
        </div>


      </div>
      <div style="display:table-cell; width:250px;">

        <!-- SECOND TREE -->
        <div data-angular-treeview="true" data-tree-id="tree02" data-tree-model="roleList2" data-node-id="roleId" data-node-label="roleName" data-node-children="children">
        </div>
      </div>
    </div>
  </div>
</div>

Here's the working fiddle

Answer 1

尝试这些更改。

标记：（添加ng-click属性）

 <div
    data-angular-treeview="true"
    data-tree-id="tree01"
    data-tree-model="roleList1"
    data-node-id="roleId"
    data-node-label="roleName"
    data-node-children="children" 
    ng-click="printParent($event);">
</div>

在控制器中

$scope.printParent = function ($event) {
  var root = $scope;
  var currentScope = angular.element($event.target).scope();
  console.log('selected Node details: ', currentScope.node);
  currentScope = currentScope.$parent;
  console.log('parents::')
  while(currentScope.$id !== root.$id) {
    console.log(currentScope.node);
    currentScope = currentScope.$parent;
  }
}

Working Fiddle

要访问指令中的父级：

点击处理程序

scope[treeId].selectNodeLabel = 
    function( selectedNode, selectedNodeScope ){
        if (selectedNodeScope) {
            var parentScope = selectedNodeScope.$parent,
                index,
                targetArray;
            if (parentScope.node) {
                targetArray = parentScope.node.children;
            } else {
                //root node
                targetArray = scope[treeModel];
            }
            // to insert after the index;
            if (targetArray.length) {
                index = targetArray.indexOf(selectedNode);
                console.log('index :: ', index, 'parent::', targetArray);
                if (index !== -1) {
                    //targetArray.splice(index, 0, newNodeToBeAdded)
                }
            }
        }
    }
    // other stuff
}

在指令模板中

<span data-ng-class="node.selected" data-ng-click="' + treeId + '.selectNodeLabel(node, this)">{{node.' + nodeLabel + '}}</span>

Working Fiddle

Answer 2

您可以像这样简单地打印父母。在MarkUp中

 <div
    data-angular-treeview="true"
    data-tree-id="tree01"
    data-tree-model="roleList1"
    data-node-id="roleId"
    data-node-label="roleName"
    data-node-children="children" 
    ng-click="printParent(this)">
 </div>

在控制器

中

 $scope.printParent = function(item) {
   var parent = item.$modelValue;
   Console.log(parent);
 };

angular treeview-获取父节点

2 个答案: