title: How to trigger UpdatePanel from a GridView TemplateColumn click?
body: <p>I have the following case, all my controls on an update panel on the page.</p>
  
  <p>One of these controls is a GridView, this GridView contains a CheckBox on the header template field (to make a check all). The autopostback is true but when the check changed no thing is changed, the update panel has a trigger asynchronous post back for the GridView.</p>