text: **4.5.2 Delete nodes – user defined nodes**
  
  Only user-added nodes can be deleted. To**delete**a node, right-click on the node and select “**Delete child node**” 
  (figure 26). When deleting user-defined nodes,**each of the child nodes has to be deleted first before deleting the**
  **parent node**that was added. If a user accidentally deletes the parent node before deleting child nodes, an error 
  message is displayed, and the nodes will disappear from the tree. However, the nodes are not removed from the 
  
  database, therefore the user has to click on the “**Reload grid**” icon ( 
  After doing so, the child nodes will re-appear on the tree. It should be noted that any data entered in the grid 
  corresponding to the user-added nodes are also deleted from the database once the nodes are removed. 
  
  ) located at the bottom of the navigation tree. 