title: Ext Js Grid, How to get particular column all row values & sum?
body: <p>I'm using Ext Js v6.2 Grid, In my application, I have three columns <strong>Charges, Rate &amp; Amount</strong> Here I want to get all the value of third column <strong>[AMOUNT]</strong> &amp; Sum it up.please correct my code if I'm wrong, I've searched in documentation and other stuff it doesn't help.please solve the problem. Thanks in advance.</p>
  
  <pre><code>                         editor: {
                                      xtype: 'textfield',
                                      enableKeyEvents: true,
                                      fieldCls: 'right-align',
  
                          listeners: {
                                       element: 'el',
                           keyup: function(form, e, selModel, record, index, options){
  
                               var InputValue= document.getElementById(e.id).value;
                               var result = (productValue) * (InputValue) / 100;
                               var selectedRecord = gridStore.getSelection()[0];
                               rowindex = gridStore.store.indexOf(selectedRecord);
                               var models = gridStore.getStore().getRange();
                               models[rowindex].set("amount", result);
                               TotalOtherCharge = $('.Amount-column-cell .x-grid-cell-inner').text();
                               alert(TotalOtherCharge);
  
  
                          } 
                      }
                  },
  </code></pre>
  
  <p>I'm getting output from <strong>TotalOtherCharge</strong> </p>
  
  <p>As per Screenshot:</p>
  
  <p><strong>2.862.8614.322.885.722.862.865.728.5811.442.86</strong> I need these number to split &amp; sum it up.</p>
  
  <p><a href="https://i.stack.imgur.com/v3WTP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/v3WTP.png" alt="GRID SCREENSHOT"></a></p>