title: Insert New Column To Kendo Datagrid
body: <p>I Got Columns are quantity,Totalprice in my kendo grid. Then I want to add calculated column to my datagrid.
  for example:</p>
  
  <pre><code>    $("#gridcolumnadd").click(function (e) {
      //1.add new column code Column Name is "Price For per kg" 
      //2.Set Column type is number
      //3.Set Column aggregate is sum for footerTemplate
      //4.add calculated values ex:(Totalprice/quantity) to "Price For per kg" with using for loop row count.
      //redraw datagrid 
  
  });
  </code></pre>
  
  <p>Is possible to make it in kendo datagrid?
  **</p>
  
  <hr>
  
  <p><strong>NOTE<br>
  I WANT TO CREATE DATAGRID FIRSTLY THEN ADD NEW COLUMN WITH ITS CALCULATION. THATS THE REASON  "I WRITE JUST BUTTON CLICK"</strong></p>
  
  <p>**
  For example; It is not working<br></p>
  
  <pre><code>var raw = grid.dataSource.data();
    var length = raw.length;//if ı have many data . I can use For Loop
    raw[0].new="Test"; //I think one data we have it
    grid.columns.push({ field: "new" });
    grid.dataSource.data(raw);
  </code></pre>