title: How to implement TreeTable in sapui5
body: <p><strong>i have a model like this</strong>    </p>
  
  <pre><code>[ {"name":"Main 1","description":"main1 Description",
           "children": [{
                 "name": "SUB 1",
                 "description": "SUB 1 Description",
                 "children":[
                      {
                          "name": "SUB 1.1",
                          "description": "SUB 1.1 Description"
                      },
                      {
                          "name": "SUB 1.2",
                          "description": "SUB 1.2 Description"
                      }         ]
                  }],
                  "parent":[{"name": "parent sub"}]
              },
     {"name":"Main 2","description":"main2 Description",children:[],parent:[]},
     {"name":"Main 3","description":"main3 Description",children:[],parent:[]},
     {"name":"Main 4","description":"main4 Description",children:[],parent:[]}
   ]
  </code></pre>
  
  <p>and i want to display <code>name</code> and <code>description</code> property. The contents in the <code>"children"</code> property should be a sub-level in the row, and i don't want to display <code>"parent"</code> content in this tree table. how can i restrict <code>"parent"</code> property from the tree table.</p>