title: ExtJS - Grid Tool tip for specific columns
body: <p>I am trying to create a tooltip in my grid for specific columns.</p>
  
  <p>In my grid, i need tooltip for Column 1st nd 3rd. (name and phNo.)</p>
  
  <p>Fiddle - <a href="https://fiddle.sencha.com/#view/editor&amp;fiddle/2lop" rel="nofollow noreferrer">https://fiddle.sencha.com/#view/editor&amp;fiddle/2lop</a></p>