Ext.js Grid

Ext.js Grid

<!DOCTYPE html>
<html>
   <head>
      <link href = "https://cdnjs.cloudflare.com/ajax/libs/extjs/6.0.0/classic/theme-classic/resources/theme-classic-all.css"
         rel = "stylesheet" />
      <script type = "text/javascript"
         src = "https://cdnjs.cloudflare.com/ajax/libs/extjs/6.0.0/ext-all.js"></script>

      <script type = "text/javascript">
         // Creation of data model
         Ext.define('StudentDataModel', {
            extend: 'Ext.data.Model',
            fields: [
               {name: 'name', mapping : 'name'},
               {name: 'age', mapping : 'age'},
               {name: 'marks', mapping : 'marks'}
            ]
         });

         Ext.onReady(function() {
            // Store data
            var myData = [
               { name : "Asha", age : "16", marks : "90" },
               { name : "Vinit", age : "18", marks : "95" },
               { name : "Anand", age : "20", marks : "68" },
               { name : "Niharika", age : "21", marks : "86" },
               { name : "Manali", age : "22", marks : "57" }
            ];

            // Creation of first grid store
            var gridStore = Ext.create('Ext.data.Store', {
               model: 'StudentDataModel',
               data: myData
            });

            // Creation of first grid
            Ext.create('Ext.grid.Panel', {
               id                : 'gridId',
               store             : gridStore,
               stripeRows        : true,
               title             : 'Students Grid',  // Title for the grid
               renderTo          :'gridDiv',         // Div id where the grid has to be rendered
               width             : 600,
               collapsible       : true,             // property to collapse grid
               enableColumnMove  :true,              // property which allows column to move to different position by dragging that column.
               enableColumnResize:true,        // property which allows to resize column run time.

               columns           :
               [{
                  header: "Student Name",
                  dataIndex: 'name',
                  id : 'name',    
                  flex:  1,        // property defines the amount of space this column is going to take in the grid container with respect to all.
                  sortable: true,  // property to sort grid column data.
                  hideable: true   // property which allows column to be hidden run time on user request.
               },{
                  header: "Age",
                  dataIndex: 'age',
                  flex: .5,
                  sortable: true,
                  hideable: false   // this column will not be available to be hidden.
               },{
                  header: "Marks",
                  dataIndex: 'marks',
                  flex: .5,
                  sortable: true,

                  // renderer is used to manipulate data based on some conditions here
                  // who ever has marks greater than 75 will be displayed as
                  // 'Distinction' else 'Non Distinction'.
                  renderer :  function (value, metadata, record, rowIndex, colIndex, store) {
                     if (value > 75) {
                        return "Distinction";     
                     } else {
                        return "Non Distinction";
                     }
                  }
               }]
            });
         });
      </script>
   </head>

   <body>
      <div id = "gridDiv"></div>
   </body>
</html>