Hi Alfonzoe,

If you don't want any of the symbols to appear in the row selectors, you can acheive this much more easily by setting the RowSelectorAppearance.ImageAlpha to Transparent.

I believe that you need to implemend a uielementdrawfilter class. It took us a while to get this figured out, but it works really good.

Create a instance of the class below and assign it to your grids DrawFilter.

 Hope This helps,
Brandon

 Example of the class:

Public Function GetPhasesToFilter(ByRef drawParams As Infragistics.Win.UIElementDrawParams) As Infragistics.Win.DrawPhase Implements Infragistics.Win.IUIElementDrawFilter.GetPhasesToFilter

' Drawing RowSelector Call DrawElement Before the Image is Drawn

If TypeOf drawParams.Element Is Infragistics.Win.UltraWinGrid.RowSelectorUIElement Then
     Return DrawPhase.BeforeDrawImage
Else
     Return DrawPhase.None
End If

End Function

' If the image isn't drawn yet, and the UIElement is a RowSelector
If drawPhase = drawPhase.BeforeDrawImage And TypeOf drawParams.Element Is Infragistics.Win.UltraWinGrid.RowSelectorUIElement Then
' Get a handle of the row that is being drawn
         Dim row As UltraGridRow = CType(drawParams.Element.GetContext(Type.GetType("UltraGridRow")), UltraGridRow)
' It this is a data row, return true to prevent any images from being drawn
    If row.IsDataRow Then
         Return True
     End If
End If
' Else return false, to draw as normal
      Return False
End Function

End Class