How I can hide a branch that does not have child?

[Daniel]

working with angular wants to keep secret some of the branches that have no son, it is possible that not all the branches that do not have children, if not some

[Jonesherine Stephen]

Hi Daniel, 

Thanks for contacting Syncfusion support. 

By using “ejDataManager”, we can filter the required parent records that having child records in it. 

Please find the code example below: 

<div id="angulartreegrid" ej-treegrid e-datasource="data" >                  

    <script>     

        var dataManager = ej.DataManager(projectData).executeLocal(ej.Query().where("subtasks", 

                  ej.FilterOperators.notEqual, null)); 

        angular.module('listCtrl', ['ejangular']) 

        .controller('TreeCtrl', function ($scope) { 

            $scope.data = dataManager;             

        });         

    </script> 

We have also prepared the sample for your reference. Please find the sample from below link. 

Sample: http://jsplayground.syncfusion.com/e5rs5yzt 

Please let us know if you require further assistance on this. 

Regards, 

Jone sherine P S