title: Infragistics UltraGrid with Expandable Rows
body: <p>I'm showing to my users, a list of items within a UltraGrid, that come from database.
  Now, i'm with one need and I don't find anything useful or any documentation that is clear nor none tutorial is available where I can learn.</p>
  
  <p>I need extend the functionality of this grid, to, set a (+) Expand function, that, when the user press that button (+), the row expands and shows the items that are in the History.</p>
  
  <p>It is anyone in the world that can help me to solve this issue or indicate appropriate docs where I can Learn?</p>
  
  <p>Very thanks.</p>