title: Calculate total columns in winforms gridview
body: <p>Inside form there is gridview which is populated with following columns</p>
  
  <pre><code>CODE, NAME, PRICE, QNT, TOTAL
  1     Test  4.00    1   4.00
  2     Test2 3.50    2   7.00
  </code></pre>
  
  <p>How can I calculate this total column to be in this case 11.00 and for example add that value to the labelOverall.Text property?</p>
  
  <p>Thanks</p>
  
  <p>Update</p>
  
  <p>Gridview is populated like this</p>
  
  <pre><code>var sel = (Article)cmbArticleList.SelectedItem;
  
              DataRow newRow = articlesTable.NewRow();
              newRow["CODE"] = sel.Code;
              newRow["Name"] = sel.Name;
  
              articlesTable.Rows.Add(newRow);
              articlesGridView.DataSource = articlesTable;
  </code></pre>