title: UltraWinGrid enter edit mode issue
body: <p>I have an UltraWinGrid and I want to give the focus to a specific cell and make it enter edit mode programmatically (<em>no click</em>). So I did this : </p>
  
  <pre><code>If myUltraWinGrid.ActiveRow IsNot Nothing Then
  myUltraWinGrid.ActiveCell = myUltraWinGrid.ActiveRow.Cells("foo")
  myUltraWinGrid.PerformAction(Infragistics.Win.UltraWinGrid.UltraGridAction.EnterEditMode)
  Else
  myUltraWinGrid.ActiveCell = myUltraWinGrid.Rows(0).Cells("foo")
  myUltraWinGrid.PerformAction(Infragistics.Win.UltraWinGrid.UltraGridAction.EnterEditMode)
  EndIf
  </code></pre>
  
  <p>Which should work but it only gives focus to the row (no edit mode). </p>
  
  <pre><code>fooColumn   
     |
    \_/
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/57s2K.png" alt="enter image description here"></p>