title: How to setExtremes in xAxis event handler?
body: <p>I am trying to setExtremes in the xAxis event handler below and I am getting the Uncaught TypeError.
  How can I setExtremes in the xAxis event handler?</p>
  
  <pre><code>xAxis: {
      events: {
          setExtremes: function (e) {
              if (e.trigger === "navigator") {
                      forceRebuildSeries(); //Get all data points
  
                      // Set Extremes (redisplay with new data points)
                      this.chart.xAxis[0].setExtremes(e.min, e.max);  //Uncaught TypeError: Property 'setExtremes' of object #&lt;Object&gt; is not a function 
              }
          }
      }
  },
  </code></pre>
  
  <p>I would appreciate any help or workaround available.
  Thanks.</p>