title: Ag grid tree data
body: <blockquote>
    <p>I have an ag grid with tree data which filters out from the view the
    rows which are deleted</p>
  </blockquote>
  
  <pre><code>[  
     {  
        "name":"test",
        "children":[  
           {  
              "name":"test",
              "ROWSTATE":"DELETE"
           },
           {  
              "name":"test",
              "ROWSTATE":"DELETE"
           }
        ]
     }
  ]
  </code></pre>
  
  <blockquote>
    <p>this is my data and the filter configuration is like this</p>
  </blockquote>
  
  <pre><code>isExternalFilterPresent: () =&gt; { return true; },
              doesExternalFilterPass: (node: RowNode) {
          return node.data.ROWSTATE !== ROWSTATE.DELETE;
      }
  </code></pre>
  
  <blockquote>
    <p>The grid doesn't display any value because all the chilrens does not
    pass the filter function I suppose. What I want to do is to make the grid to 
    show the row which contains the parent.</p>
  </blockquote>