I have a custom section in one of my Umbraco V 8.17.0 projects. Now i try to add a Node Tree Picker to this custom section. I need to get the node id so I can get the content of this node in my controller.

Im unable to add the node-tree to my section, respectively I can add it but it only generates an a tag that leads me to the content section.

Can anyone tell me how to implement the Node Tree Picker in the custom section?

newsletter.html:

<div ng-controller="newsletterController">
<div class="custom" ng-show="select.model=='books'">
    <h2>Pick a Node</h2>

    <div class="umb-tree-picker">
        <h2>Select a Node from the Content Tree</h2>

        <umb-tree tree="content"
            start-node="-1"
            node-type="book"
            show-selection="true"
            on-init=""
            on-select-node="onNodeSelected(node)">
        </umb-tree>

        <!-- Display the selected node -->
        <div ng-if="selectedNode">
            <h3>Selected Node:</h3>
            <pre>{{ selectedNode | json }}</pre>
        </div>
    </div>
</div>