Treemap: How to open a search using drilldown when clicked/zoomed on parent rectangle?

[sohaibomar]

I was able to open a search using drilldown when clicked on child rectangle of tree maps as mentioned in official documentation here
http://docs.splunk.com/Documentation/Treemap/1.1.1/TreemapViz/TreeMapComponents

But I need to open a search when parent category is Zoomed/Clicked, so far I have tried below code but it doesn't pass the token until clicked on children rectangle.

<form>
  <label>treemaps drilldown</label>
    <row>
    <panel>
      <title>treemap</title>
      <viz type="treemap_app.treemap">
        <search>
          <query>sourcetype="syslog"| stats sum(traffic) by category, application</query>
          <earliest>0</earliest>
          <sampleRatio>1</sampleRatio>
        </search>
        <option name="trellis.enabled">0</option>
        <option name="trellis.scales.shared">1</option>
        <option name="drilldown">all</option>
        <option name="trellis.size">medium</option>
        <drilldown>
          <set token="category">$row.category$</set>
        </drilldown>

      </viz>
    </panel>
    <panel depends="$category$">
      <chart>
        <title>Top Applications of Category $category$ </title>
        <search>
          <query>sourcetype="syslog" category=$category$| top application</query>
          <earliest>0</earliest>
          <latest></latest>
        </search>
        <option name="charting.chart">bar</option>
        <option name="charting.drilldown">none</option>
      </chart>
    </panel>
  </row>
</form>

Is it possible to use drilldown when clicked on parent rectangle in treemaps?

[cmerriman]

Unfortunately, Treemap doesn't support drilldowns until you reach the child level. Generally it would open in search, unless you defined a drilldown behavior. From looking at your code, it should be picking up the parent category and using that in your second search. I understand it is more of an inconvenience to the users, but I don't think there is a way around it unless you were to customize the treemap code itself.

[sohaibomar]

Yeah, seems legit.