title: How to Uncheck Select All Checkbox when one checkbox is Unchecked
body: <p>I have a checkbox named Select All. When I click this then all other check box inside my Gridview is Checked. But I want when anyone of the checkbox inside the grid will be unchecked then this Select All Checkbox will automatically uncheck. Is there anyone who can help me on this Please?</p>
  
  <p>Thank you.</p>